Intervention effect of 12 week spinal health gymnastics on high and low shoulder exercise in adolescents / 中国学校卫生

Objective@#To explore the intervention effect of 12 week spinal health exercise on adolescents high and low shoulders, in order to provide empirical evidence for exploring simple and feasible measures to intervene.@*Methods@#In February 2023, 60 high and low shoulder students from a vocational high school in a certain county of Luzhou City were randomly selected as the research subjects by convenient sampling method. Paired sampling was used to randomly divide participants into an intervention group and a control group with 30 students each group. The intervention group received spinal health gymnastics intervention during 12 weeks of morning exercises and large break exercises for twice a day, with two groups each time; the control group maintained their previous morning exercises and large break exercises. A follow up study was conducted on the height difference between the left and right shoulder peaks of the intervention group and the control group students before intervention, after 12 weeks intervention, at 4 weeks post intervention. The t-test was used to analyze the changes in shoulder peak height difference between the intervention group and the control group.@*Results@#Before intervention, there was no statistically significant difference in the height of the left and right shoulder peaks between the intervention group [(2.50±1.19)cm] and the control group [(2.49±1.20)cm] adolescents ( t=0.05, P > 0.05). After 12 weeks of intervention, the difference in shoulder height between the left and right sides of adolescents in the intervention group decreased, compared to that before intervention [(1.43±1.15, 2.50±1.19)cm], while the control group increased compared to that before intervention [(2.58±1.19, 2.49±1.20) cm], and the differences were both statistically significant ( t= -78.17 , 20.15, P <0.05). At 4 weeks post intervention, there was no statistically significant difference in the height of the left and right shoulder peaks between the intervention group [(1.44±1.15)cm] and the control group [(2.59±1.18)cm] compared to 12 weeks after the intervention ( t=1.80, 1.05, P >0.05). The intervention group [(2.49±1.26, 2.52±1.16) (1.43±1.21, 1.44±1.13) (1.44±1.21, 1.45±1.14)cm] and the control group [(2.45±1.24, 2.52±1.20) (2.55±1.24, 2.61±1.18) (2.55±1.22, 2.62±1.18)cm] showed no statistically significant difference in the height of the left and right shoulder peaks between males and females before intervention, after 12 weeks of intervention, and after stopping intervention for 4 weeks ( t =-0.08, -0.03, -0.02; -0.15, -0.12, -0.15, P >0.05).@*Conclusions@#Spinal health gymnastics has a good effect on correcting high and low shoulders in adolescents. Spinal health gymnastics should be promoted on campus to promote adolescent posture health.

Effects of after school exercise service on physical fitness in primary school students / 中国学校卫生

Objective@#To investigate the effects of after school exercise service (referred to as the "after school ES") on physical health, so as to provide evidence for possible beneficial effect of after school ES.@*Methods@#Students in the fourth grade of primary school were recruited from September 2021 to July 2022 in Changsha City and divided into the control group ( n =220) and the after school ES group ( n =220). The control group only participated in the regular physical education activities of the school. The after school ES group received after school ES for one academic year, 4 times a week, 40-50 minutes per time, for a total of 32 weeks. Body shape indicators such as height, weight and percentage of body fat, as well as physical fitness indicators such as 50 meter running, grip strength and progressive aerobic cardiovascular endurance run (PACER) were measured in September to October 2021 and June to July 2022, respectively. Independent sample t-test, Chi square test and two factors repeated measurement analysis of variance were used for statistical analysis of the data.@*Results@#After one academic year, compared with the control group [(13.52±2.30)kg], muscle mass of primary school students in the after school ES group [(13.76±2.32)kg] significantly increased, while waist to hip ratio [(0.95±0.16)] and percentage of body fat [(20.17±7.43)%] significantly decreased compared to the control group [(1.01±0.21), (22.02±12.34)%]( F=330.70, 6.85, 4.33, P <0.05). The proportion of overweight and obesity in after school ES group decreased significantly from 19.5% to 12.3% ( χ 2=4.35, P <0.05). Compared with the control group, the scores of 50 meter running [(10.00±1.06, 10.21±0.83)s], 1 minute sit up [(33.25±8.24, 30.76±9.34)times], sitting and flexion [(14.53±7.50, 8.59±6.32)cm], 1 minute rope skipping [(125.01±30.50, 115.97±32.09)times], eyes closed and single legged standing [(30.00±34.72, 25.72±23.82)s], selective response time [(635.66±91.72, 652.79±120.42)ms] and VO 2max [(45.31± 1.02 , 43.67±0.85)mL/(kg〖 ·min)] in the after school ES group were significantly improved, with statistical significance ( F= 5.32 , 443.14, 97.23, 814.07, 36.49, 6.11, 396.91, P <0.05).@*Conclusions@#After school ES can improve body shape of primary school students, reduce the risk of overweight and obesity and enhance physical fitness. It is recommended that schools should appropriately increase after school ES to promote physical fitness of students.

Effects of group sports game intervention on social skills and quality of life in children with austism spectrum disorders / 中国学校卫生

Objective@#To explore the effects of group sports game intervention on social ability and quality of life of children with austism spectrum disorders (ASD),so as to provide reference for rehabilitation intervention of social and quality of life of children with ASD.@*Methods@#From September 2021 to January 2022, 72 children with ASD aged 4-6 in the children s rehabilitation department of Xiangyang Central Hospital were selected to participate in the study, and were randomly divided into experimental group ( n =36) and control group ( n =36). The control group received routine rehabilitation training (including individual sports game training), and the experimental group replaced individual sports game training with group sports game training on the basis of routine rehabilitation.The course content mainly included three parts: warm up before class, group sports games and relaxation after class. The course combined social skills with sports games, and was carried out in a group form (divided into 12 groups with 3 people in each group), and was trained five times a week for 60 minutes, for a total of 12 weeks. The scores of Childhood Autism Rating Scale (CARS), Autism Treatment Evaluation Checklist (ATEC), Social Responsiveness Scale (SRS) and Pediatric Quality of Life Inventory Version 4.0 Generic Core Scales (PedsQL 4.0) were observed before and after treatment. t-test and χ 2 test were used for statistical analysis.@*Results@#There was no significant difference in SRS scores between the experimental group and the control group before intervention ( t =-0.63, P >0.05). After the intervention, the total response rate in the experimental group was 83.33 %, higher than 41.67% in the control group χ 2=13.33, P <0.05),and the SRS scores decreased in the experimental group and control group ( t =17.75,8.71, P <0.05). The SRS scale score of the experimental group Social perception (17.67±4.12) , social cognition (30.33±4.99) , social communication (50.33±9.39) , social motivation (24.25±6.78) scores and total scores ( 152.67± 25.82) were lower than those of the control group(22.17±5.34，36.00±4.13，62.58±11.07，34.42±7.13，186.33±29.03)( t = -4.88，-2.03，-2.13，-3.58，-3.01， P ＜0.05).After the intervention, the scores of social function (53.33±18.01) and total score (283.83±51.83) on PedsQL 4.0 scale in experimental group were higher than those in control group(23.33±15.13，218.00±39.01) ( t =4.42，3.52， P ＜0.05). After the intervention, Autism Treatment Evaluation Scale (ATEC) scores of experimental groups(44.33±14.72) was lower than that in control group ( 59.33±16.95)( t =-2.32, P ＜0.05).@*Conclusion@#The intervention of group sports game has a significant effect on improving social ability and life quality of children with ASD.

The influence of physical education at school on the attention of students aged 15-16 years / El impacto de la educación física en la escuela en la atención de los estudiantes de 15 a 16 años / O impacto da educação física na escola na atenção de estudantes de 15 a 16 anos

ABSTRACT Objectives: the influence of physical activity in physical education lessons on the attention indicators of schoolchildren. Material and Methods: 141 students, aged 15-16, who studied in the 9th grade, took part in the experiment. The main research method was the "Trondyke Test", which determines the level of attention development of students. The test was used before and after the physical education lesson 1 time per month for 5 months. Results: students who did not engage in physical education in the lesson were not able to significantly improve their performance in the test, which indicates a possible adaptation to the test after its first performance before the lesson. Students who were engaged in physical exercises could significantly increase the test results. Conclusion: the results obtained determine the effectiveness of the influence of a physical education lesson at school on the indicators of students attention. This study will serve as an additional motivation for students to engage in physical culture, since the impact of physical exercises has a positive effect not only on the development of physical qualities, but also on the attention of schoolchildren. Level of Evidence III; Retrospective Comparative Study.

RESUMEN Objetivos: la influencia de la actividad física en las clases de educación física en los indicadores de atención de los escolares. Material y métodos: Participaron en el experimento 141 escolares, de 15-16 años, que cursaban el noveno grado. El principal método de investigación fue la "Prueba de Trondyke", que determina el nivel de desarrollo de la atención de los escolares. La prueba se usó antes y después de la lección de educación física una vez al mes durante 5 meses. Resultados: los jóvenes que no participaron en educación física en la lección no pudieron mejorar significativamente su rendimiento en la prueba, lo que indica una posible adaptación a la prueba después de su primera actuación antes de la lección. Los escolares que realizaban ejercicios físicos pudieron aumentar significativamente los resultados de la prueba. Conclusión: los resultados obtenidos determinan la efectividad de la influencia de una lección de educación física en la escuela sobre los indicadores de atención de los escolares. Este estudio servirá como una motivación adicional para que los estudiantes participen en la cultura física, ya que el impacto de los ejercicios físicos tiene un efecto positivo no solo en el desarrollo de las cualidades físicas, sino también en la atención de los escolares. Nivel de Evidencia III; Estudio Comparativo Retrospectivo.

RESUMO Objetivos: a influência da atividade física nas aulas de Educação Física nos indicadores de atenção dos escolares. Material e métodos: participaram do experimento 141 escolares, de 15 a 16 anos, que estudaram na 9a série. O principal método de pesquisa foi o "teste de Trondyke", que determina o nível de desenvolvimento da atenção dos escolares. O teste foi utilizado antes e depois da aula de Educação Física uma vez por mês durante 5 meses. Resultados: Os estudantes que não praticaram Educação Física na aula não conseguiram melhorar significativamente seu desempenho no teste, o que indica uma possível adaptação ao teste após sua primeira apresentação antes da aula. Os estudantes que estavam envolvidas em exercícios físicos foram capazes de aumentar significativamente os resultados do teste. Conclusão: os resultados obtidos determinam a eficácia da influência de uma aula de Educação Física na escola nos indicadores de atenção das crianças. Este estudo servirá como uma motivação adicional para os estudantes se envolverem na cultura física, uma vez que o impacto dos exercícios físicos tem um efeito positivo não apenas no desenvolvimento das qualidades físicas, mas também na atenção dos alunos. Nível de Evidência III; Estudo Comparativo Retrospectivo.

Inserção de profissionais de educação física no Sistema Único de Saúde: análise temporal (2007-2021) / Insertion of physical education professionals in the Unified Health System: temporal analysis (2007-2021)

O objetivo desta pesquisa foi descrever e analisar a série temporal da inserção de profissionais de educação física (PEF) no Sistema Único de Saúde (SUS) no período de 2007 a 2021, bem como apresentar a distribuição por regiões e estados de profissionais no território brasileiro. Trata-se de um estudo descritivo e de série temporal que utilizou dados secundários oriundos do sistema de consultas do Cadastro Nacional dos Estabelecimentos de Saúde (CNES). Analisou-se o quantitativo de PEF no SUS nas cinco regiões e nos vinte e seis estados e no Distrito Federal entre 2007 e 2021 e reali-zou-se a análise temporal para verificar a distribuição dos PEF nas regiões brasileiras. Os resultados apontam para um crescimento no número de PEF entre 2007 (n = 22) e 2020 (n = 7.560) em todo o país. Em 2021 observa-se uma redução de 2,8% no quantitativo de PEF. Entre as regiões, os maio-res quantitativos foram observados nas regiões Nordeste e Sudeste, enquanto nos estados a maior concentração foi em Minas Gerais, seguido de São Paulo, Pernambuco, Bahia e Rio Grande do Sul. Observou-se uma tendência crescente de PEF nas regiões Norte e Sul. Conclui-se que o quantitativo de PEF atuantes no SUS teve um crescimento expressivo durante o período analisado, sendo fruto das políticas públicas e programas voltados à promoção da atividade física constituídos ao longo do tempo. Apesar disso, há importantes disparidades geográficas que não devem ser desconsideradas, reforçando a necessidade de estratégias coletivas e investimentos em políticas públicas que fomentem a inserção dos PEF na rede assistencial e de fortalecimento do SUS

The aim of this study was to describe and analyze the time series of physical education professionals (PEF in Portuguese) in the Unified Health System (SUS in Portuguese) from 2007 to 2021, as well as to present their distribution by Brazilian regions and states. This is a time series study which used secondary data from the Consultation System of the National Registry of Health Establishments (CNES in Portuguese). We analyzed the number of PEF in the country, in the five Regions and in the twenty-six States and the Fed-eral District between 2007 and 2021 and the temporal analysis was carried out to verify the distribution of PEF in the Brazilian regions. The results point to an increase in the number of PEF between 2007 (n = 22) and 2020 (n = 7560). In 2021, there is a 2.8% reduction in the amount of PEF. Among the regions, the highest numbers were observed in the Northeast and Southeast regions, while in the states the highest con-centration was in Minas Gerais, followed by São Paulo, Pernambuco, Bahia and Rio Grande do Sul. There was an increasing trend in the distribution of PEF in the North and South regions. The number of PEF working in the SUS had an expressive growth during the analyzed period, being the result of public policies and programs aimed at promoting physical activity constituted over time. Despite this, there are important geographic disparities that should not be disregarded, reinforcing the need for collective strategies and financ-ing in public policies that encourage the insertion of PEFs in the care network and the strengthening of SUS

Narrativas sobre competição esportiva: reflexões e perspectivas / Narratives about sports competition: reflections and perspectives / Narrativas sobre la competición deportiva: reflexiones y perspectivas

Analisar as concepções sobre competição esportiva em publicações acadêmicas brasileiras é o foco deste trabalho. Utilizando-se da revisão sistemática, do tipo estado da arte, foram analisados 175 artigos no recorte temporal 2010-2020 (11 anos) em 14 revistas da área da Educação Física. Há parcimônia dos/as autores/as quanto a complexidade da competição e foram salutares indicativas do rememorar a essência do tema; independente da área de conhecimento específico, foram recorrentes indicativos de um processo respeitoso e pedagógico da competição aos praticantes. Ademais, confirmam que amadores e profissionais; homens e mulheres; idosos e jovens, todos podem (e devem) ter a opção da experiência esportiva no âmbito competitivo (AU).

Analyzing the concepts about sports competition in Brazilian academic publication is the objective of this paper. Using the state-of-art systematic review, 175 articles were considered from 14 Physical Education Journals from 2010 to 2020 (11 years). There is parsimony by the authors regarding the complexity of the competition and greetings indicative of remembering the essence of the theme; regardless of the area of specific knowledge, there were recurrent indicators of a respectful and pedagogical process of the competition for practitioners. Also, it was confirmed that amateurs and professionals; men and women; elderly and young; everyone can (and should) have the possibility of sporting experience in the competitive environment (AU).

Analizar las concepciones sobre la competición deportiva en las publicaciones académicas brasileñas es el foco de este trabajo. Utilizando la revisión sistemática del tipo estado del arte, se buscarán 175 artículos en el período de 2010-2020 en 14 revistas del área de Educación Física. Hay parcimônia a la complejidad de la competición y fueron saludos indicativos de recordar la esencia del tema; independientemente del área de conocimiento específico, fueron recurrentes indicativos para un proceso respetuoso y pedagógico de la competencia por practicantes. También confirman que los atletas aficionados y profesionales; hombres y mujeres; ancianos y jóvenes, todos pueden (y deben) tener la opción de la experiencia deportiva en el entorno competitivo

Effect of aerobic pedal exercise on sleep quality and energy metabolism of female college students with mild sleep disorder / 中国学校卫生

Objective@#To explore the intervention effect of aerobic step exercise on sleep quality of female college students, so as to provide a new perspective to improve the sleep quality of female college students.@*Methods@#In the 2020 fall semester, a total of 41 female college students with mild or more severe sleep disorders were selected from Beijing Normal University through a questionnaire and were randomly divided into experimental group ( n =29) and control group ( n =12). The experimental group received 55 minutes/time step aerobic exercise intervention for 8 weeks, three times a week, while the control group received no exercise intervention from October to December. The two groups maintained the original learning and living habits, without additional physical activity. The Pittsburgh Sleep Quality Index Scale and portable sleep monitor were used to assess the subjects sleep quality from both subjective and objective aspects. Changes in energy metabolism were observed by triaxial accelerometer and standing body composition analyzer.@*Results@#After exercise intervention, subjective sleep quality factor (1.24±0.43, 0.86±0.58), sleep efficiency factor (0.66±0.67, 0.07±0.25), sleep disorder factor (1.24± 0.51 , 1.03±0.18), daytime dysfunction factor (1.90±0.86, 1.48± 0.82 ) and PSQI score (7.21±1.85, 5.66±2.09) significantly improved ( t=3.64, 4.63, 2.27, 2.36, 3.29, P <0.05). The ratio of sleep to wakefulness decreased (25.54±7.86, 20.85± 5.13), the ratio of deep sleep (31.79±12.20, 38.32±10.19) and sleep efficiency (73.99±7.91, 78.68±5.12) increased significantly ( t=-2.12, -2.39, -2.21, P <0.05). Lean body mass [(38.55±2.95, 39.07±2.94)g] and basal metabolic rate [(1 257.45±41.14, 1 262.66 ±42.22)kcal] of the experimental group significantly increased after the intervention of medium high intensity aerobic pedal exercise ( F=5.95, 3.49, P <0.05). Total energy expenditure was positively correlated with subjective sleep quality and sleep efficiency ( r=-0.26, -0.44, P <0.05).@*Conclusions@#The 8 week aerobic step exercise intervention can increase the daytime energy consumption and basic metabolism of female college students. Improve the sleep depth and efficiency of female college students, reduce sleep disorders, and then effectively improve sleep quality.

A survey on self-management level and physical activity in patients with type 2 diabetes mellitus of Zang and Han nationalities in Tibetan of China / 中国基层医药

Objective:To investigate the level of self-management and daily physical activity in patients with type 2 diabetes mellitus (T2DM) of Zang and Han nationalities in Tibetan, China, and to compare the difference in daily management between T2DM patients of Zang and Han nationalities, to develop reasonable and effective chronic disease management strategies for long-term out-of-hospital management of T2DM patients of Zang nationalities.Methods:A total of 265 T2DM patients with glycosylated hemoglobin (HbA1c) ≥ 7% who were admitted to the Endocrinology Ward of the Hospital of Chengdu Office of People's Government of Tibet Autonomous Region from November 2020 to April 2021 and who were from different regions of Tibet were included in this study according to inclusion and exclusion criteria. The general data of all included patients were collected. Glucose and lipid metabolism-related indicators were determined. The Generalized Diabetes Self-Management Efficacy Scale and International Physical Activity Questionnaires (IPAQ) were used to evaluate patients' levels of self-management and daily physical activity.Results:The hemoglobin level in T2DM patients of Zang nationality was (154.09 ± 24.11) g/L, which was significantly higher than that in T2DM patients of Han nationality ( P < 0.05). The total cholesterol, fasting blood glucose, and low-density lipoprotein in T2DM patients of Zang nationality were (4.63 ± 1.41) mmol/L, (7.94 ± 2.19) mmol/L, and (2.75 ± 1.11) mmol/L, respectively, which significantly higher compared with T2DM patients of Han nationality (all P < 0.05). Compared with T2DM patients of Han nationality, T2DM patients of Zang nationality had lower self-management scores (81.40 ± 15.44) points, diet control scores (17.26 ± 4.97) points, physical exercise scores (11.67 ± 4.42) points, prevention and treatment of high and low blood sugar score (12.21 ± 5.72) points. The differences were statistically significant (all P < 0.05). Moderate-intensity physical activity was a significant difference between T2DM patients of Zang and Han nationalities ( P < 0.05). Conclusion:Compared with T2DM patients of Han nationality, T2DM patients of Zang nationality have lower overall self-management levels, including diet control, physical exercise, prevention and management of high and low blood glucose, and moderate-intensity physical activity. Targeted individualized education should be carried out according to the Tibetan cultural characteristics, to further develop an intervention method and an out-of-hospital management strategy for chronic disease, which are suitable for T2DM patients of Zang nationality.

Effect of highintensity interval training exercise prescription on the physical health of obese primary school students / 中国学校卫生

Objective@#To examine the effects of high intensity interval training (HIIT) on body composition and cardiorespiratory fitness of obese primary school students, so as to provide a theoretical basis and practical reference for HIIT exercise prescription in schools.@*Methods@#From August to December 2022, 25 obese children [age:(11.0±0.4)years, BMI:(23.3±0.8)kg/m 2] from a primary school in Shenzhen were recruited and divided into an exercise group ( n =13) and a control group ( n =12). After 12 weeks of exercise intervention [The durations of load period and intermittent period were 15 s, load exercise intensity was 100% maximal aerobic speed (MAS), and intermittent exercise intensity was 50% MAS, each time there were 2 groups× 8 rounds, and the rest between groups was 2 minutes, totaling 10 minutes, and 20 meter shuttle run test (20 m-SRT) was performed once every 4 weeks to adjust and update MAS], the changes in body composition and cardio respiratory fitness indexes of obese subjects before and after the intervention were compared.@*Results@#After the intervention, body weight, BMI, body fat, body fat percentage, and visceral adipose tissue area of obese subjects in the exercise group decreased from (55.6±6.2)kg, (22.7±0.6)kg/m 2, (41.8±6.9)kg, ( 23.4± 5.5)% and (102.4±39.0)cm 2 to (52.3±5.8)kg, (21.1±0.8)kg/m 2, (38.6±6.3)kg, (20.2±4.5)% and (84.2±26.9)cm 2, respectively( t =8.73, 10.96, 7.02, 4.92, 4.95, P <0.05). SBP decreased from (115.4±9.7)mmHg to (112.3±8.7)mmHg ( t = 2.96 , P <0.05). The content of skeletal muscle, 20 m-SRT and VO 2max increased from (21.3±5.3)kg, (21.6±4.9) times and (39.4±2.0)mL/(kg ·min) to (21.8±5.2)kg, (31.4±6.3)times and (43.6±2.6)mL/(kg ·min), respectively ( t =-3.33, -8.37, -10.56 , P <0.05).@*Conclusions@#HIIT is an effective way to improve the body composition and cardiorespiratory fitness of obese primary school students. It is recommended that schools with the necessary conditions use this method as an intervention measure to help reduce weight and improve cardiovascular health among obese students.

Effectiveness of Longji Daoyin exercise on adolescents of mild idiopathic scoliosis / 中国学校卫生

Objective@#To explore the effectiveness of spinal guidance exercise on adolescents of mild idiopathic scoliosis, so as to provide an experimental reference and method for promoting adolescents spinal health.@*Methods@#From the scoliosis screening, 96 children who met the diagnostic criteria were selected in June 2021, and were divided into the experimental group and the control group, with 48 cases in each group. The experimental group received a 12 week Longji Daoyin exercise training, and the control group received health education, observation and monitoring. Before and after the experiment, the axial trunk rotation (ATR) and scoliosis Cobb angle of the two groups were tested respectively, and the subjective sensation of the patients was measured by Scoliosis Research Society-22(SRS-22) questionnaire.@*Results@#After 12 weeks, the ATR and Cobb angles of the experimental group decreased [( 5.02± 2.85，7.59±3.94)°]，compared to (7.08±2.84)° and (15.84±2.00)° before intervention( t =14.02, 17.09, P < 0.01 ). Scores of functional activity, self image and mental health in the SRS-22 score increased from (4.65±0.14)(3.49±0.21) and (3.99±0.17) to(4.77±0.14)(4.62±0.13)(4.42±0.13)( t =-4.86,-39.12,-13.92, P <0.01 ). The ATR and Cobb angles of the control group increased from (6.94±2.15)° and (15.82±1.76)° to (8.25±2.49)° and (18.63±3.12)°( t =7.44,8.99, P <0.01), and the scores of self image and mental health in the SRS-22 score decreased from (3.49±0.19) and (4.00±0.15) to (3.44±0.18) and (3.94±0.14)( t =-3.74,-4.39, P <0.05).@*Conclusion@#Early adolescent idiopathic scoliosis is easy to aggravate during the observation period. Longji Daoyin exercise is of preventive and therapeutic significance.

Effects of a ketogenic diet combined with resistance training on body composition and glucolipid metabolism in the obese and female college students / 中国学校卫生

Objective@#To investigate the effects of a ketogenic diet (KD) alone and in combination with resistance training (KD+RT) on body composition and glucolipid metabolism of obese and female college students, and to provide a theoretical basis for the application of KD+RT in obese patients.@*Methods@#Totally 45 obese and female college students in Wuyi University were recruited and randomly divided into KD group ( n =23) and KD+RT group ( n =22) in September 2021. After received training for 4 weeks, the changes of body composition and glucose and lipid metabolism of obese and female college students were compared before and after intervention.@*Results@#Both a 4 week KD and KD+RT led to decreases in weight, BMI, body fat mass, body fat percentage, waist to hip ratio, visceral fat area of obese female college students ( t =16.19, 16.21, 12.42, 7.99, 2.10, 6.37; 18.82, 18.02, 17.80, 10.72, 3.41, 7.59, P <0.01). The change of muscle mass was decreased in KD group( t=4.12, P <0.01), but there was no statistically significant difference in KD+RT group( P >0.05). Both a 4 week KD and KD+RT significantly reduced the levels of the fasting blood glucose, fasting insulin, glycosylated hemoglobin and triglyceride (TG) of obese female college students ( t =10.15, 8.94 , 6.94, 7.63; 9.23, 12.75, 9.85, 9.09, P <0.01), and increased the high density lipoprotein (HDL) level( t =-7.36, -5.22, P <0.01). However, only KD+RT group had a significant decrease in the level of LDL ( t =5.27, P <0.01), and there was no significant change in the level of TC both groups ( P >0.05). After the intervention, there was no statistically significant difference between the KD+RT group compared to the KD group ( P >0.05), except for a significant decrease in triacylglycerol ( t =2.51, P < 0.05 ).@*Conclusion@#Both a short term KD and KD+RT show beneficial changes in body composition and glucolipid metabolism in obese female college students. However, the KD+RT is superior to a KD in maintaining muscle mass and reducing the effects of lipid metabolism.

Physical demands and psychophysiological stress in young athletes team sports / Exigências físicas e estresse psicofisiológico em jovens atletas de esportes coletivos

ABSTRACT Training monitoring is important in the development process of the athlete. The objective of the study was to characterize the psychophysiological response and physical demands of soccer, basketball, handball, and volleyball with young athletes. The sample consisted of 61 young athletes of both genders and members of team sports, 10 training sessions for each modality were monitored. The psychophysiological responses were monitored by the session rating perception of exertion (Session RPE) and training impulse (TRIMP). The physical demands were, distance covered (DC), DC by speed zone (DC_Z1, DC_Z2, DC_Z3, DC_Z4, DC_Z5), number of sprints, and duration of the session. In addition, the recovery status (TQR) was also collected. Differences were noted between duration (p<0.001), DC_Z1 (p<0.017), DC_Z2 (p<0.05), DC_Z3 (p<0.05), DC_Z4 (p<0.003), DC_Z5 (p < 0.05), sprints (p < 0.001), TRIMP (p<0.02), Session RPE (p<0.05) and TQR (p<0.007). In psychophysiological responses, handball showed more time in zones 4 and 5 than other modalities. According to physical demands, basketball, and handball had a higher number of sprints and also higher values ​​in DP_Z5. Therefore, the simultaneous monitoring of physical demands and psychophysiological responses provides supplementary information in monitoring young athletes.

RESUMO O monitoramento do treinamento é importante no processo de desenvolvimento dos atletas. O objetivo do estudo foi comparar as respostas psicofisiológicas e as demandas físicas de jovens atletas de futebol, basquete, handebol e voleibol. A amostra foi constituída por 61 indivíduos de ambos os gêneros que foram acompanhados ao longo de 10 sessões de treino de cada modalidade em questão. As respostas psicofisiológicas foram monitoradas através da percepção subjetiva de esforço da sessão (PSE da sessão) e o impulso de treinamento (TRIMP). As demandas físicas analisadas foram a distância total percorrida (DP), DP por zona de velocidade (DP_Z1, DP_Z2, DP_Z3, DP_Z4, DP_Z5), número de sprints e a duração das sessões. Além disso, o estado de recuperação (TQR) também foi analisado. Foram observadas diferenças significativas entre a duração das sessões (p<0,001), DP_Z1 (p<0,017), DP_Z2 (p<0,05), DP_Z3 (p<0,05), DP_Z4 (p<0,003), DP_Z5 (p <0,05), número de sprints (p < 0,001), TRIMP (p<0,02), PSE da sessão (p<0,05) e TQR (p<0,007). Nas respostas psicofisiológicas, o handebol apresentou mais tempo nas zonas 4 e 5 em comparação demais modalidades. Nas demandas físicas, o basquete e o handebol apresentaram maior número de sprints e também maiores valores na DP_Z5. Dessa forma, o monitoramento em conjunto das demandas físicas e respostas psicofisiológicas fornecem informações complementares no monitoramento de jovens atletas.

O periodismo científico da educação física brasileira: periódicos, instituições e indexadores / El periodismo científico de la educación física brasileña: revistas, instituciones e indexadores / Scientific journals in brazilian physical education: publications, institutions and indexers

Resumo Objetivou-se elaborar um panorama do periodismo científico da educação física brasileira, dentro das dinâmicas vigentes no campo acadêmico-científico. Buscou-se no Qualis Periódicos da CAPES dados disponíveis sobre os periódicos da educação física brasileira que tiveram seus sites acessados e analisados. Os dados passaram por análise de conteúdo, realizada com apoio do software MaxQDA®. Identificou-se 39 periódicos, com foco e escopo abrangendo diversos temas e objetos na educação física, implementados majoritariamente nas décadas de 1990 e 2000. Os periódicos têm como principal vínculo as instituições de ensino superior e as associações científicas e estão indexados com maior proporção no Google Scholar e Latindex, sendo que a minoria consta nas coleções dos indexadores mais disputados como Web of Science e Scopus. Percebe-se que o periodismo científico da educação física se encontra consolidado e seus periódicos compõe as dinâmicas internas deste campo acadêmico-científico.

Resumen El objetivo fue elaborar un panorama del periodismo científico de la Educación Física brasileña, dentro de la dinámica actual en el campo académico-científico. Se buscaron datos disponibles en Qualis Periódicos da CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) sobre los periódicos brasileños de Educación Física, cuyos sitios web fueron consultados y analizados. Los datos fueron sometidos a análisis de contenido, el cual fue realizado con el apoyo del software MaxQDA®. Se identificaron 39 periódicos, con enfoque y alcance que abarcan diversos temas y objetos de la Educación Física, implementados en su mayoría en las décadas de 1990 y 2000. Su principal vínculo son las Instituciones de Educación Superior y las asociaciones científicas, están indexadas en mayor proporción en Google Scholar y Latindex, apareciendo una minoría en las colecciones de Web of Science y Scopus. Se observa que el grupo de periódicos científicos de Educación Física está consolidado y conforma la dinámica interna de este campo académico-científico.

Abstract The objective was to elaborate an overview of Brazilian physical education scientific journals within the current dynamics in the academic-scientific field. In Qualis Periódicos of CAPES [Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Coordination for Improvement of Higher Education Staff], we searched for data available on Brazilian physical education journals, whose websites were accessed and analyzed. The data underwent content analysis, performed with the support of the MaxQDA® software. 39 journals were identified, with a focus and scope covering various themes and objects in physical education, mostly implemented in the 1990s and 2000s. Journals have as their main link higher education institutions and scientific associations and they are indexed with a higher proportion in Google Scholar and Latindex, with a minority appearing in the collections of the most disputed indexers such as Web of Science and Scopus. It is perceived that the group of scientific journals of physical education is consolidated and they make up the internal dynamics of this academic-scientific field.

O tênis de campo como conteúdo de ensino: a percepção de professores de Educação Física / Field tennis as a teaching content: the perception of Physical Education teachers / El tenis de campo como contenido didáctico: la percepción de los profesores de Educación Física

RESUMO Investigou-se a percepção de professores de Educação Física da Rede Municipal de Ensino de Florianópolis (RMEF) acerca da inserção do tênis de campo como conteúdo de ensino. Por meio de uma abordagem quanti-qualitativa e descritiva, elaborou-se o Instrumento de Percepção do Ensino do Tênis de Campo (IPET), respondido por 23 professores. Os resultados revelaram que as estratégias e as possibilidades de inserção do conteúdo sobre o tênis de campo referem-se à formação inicial, às experiências e aos conhecimentos específicos dos professores. Verificou-se um baixo quantitativo de docentes que ensinam a modalidade, relacionado ao pouco conhecimento e aos recursos materiais disponíveis.

ABSTRACT The perception of Physical Education teachers from the Rede Municipal de Ensino de Florianópolis/Brazil (Municipal Education Network of Florianópolis) about the inclusion of field tennis as a teaching content was investigated. Through a quantitative-qualitative and descriptive approach, the Field Tennis Teaching Perception Instrument (Instrumento de Percepção do Ensino do Tênis de Campo - IPET) was elaborated, validated and answered by 23 teachers. The results revealed that the strategies and possibilities for inserting content about field tennis refer to initial training, experiences and specific knowledge of teachers. There was a low number of professors who teach the modality, related to the little knowledge and material resources available.

RESUMEN Se investigo la percepción de los profesores de Educación Física de la Red Municipal de Educación de Florianópolis/Brasil (RMEF) sobre la inclusión del tenis de campo como contenido didáctico. A través de un enfoque cuantitativo-cualitativo y descriptivo, el Instrumento de Percepción de la Enseñanza del Tenis (IPET) fue elaborado, validado y respondido por 23 profesores. Los resultados revelaron que las estrategias y posibilidades de inserción de contenidos sobre tenis de campo se refieren a la formación inicial, experiencias y conocimientos específicos de los docentes. Hubo un bajo número de profesores que imparten la modalidad, relacionado con los escasos conocimientos y recursos materiales disponibles.

Influence of swimming training on fitness indicators in children / Influência do treinamento de natação sobre os indicadores de aptidão física em crianças / Influencia del entrenamiento de natación en los indicadores de aptitud física de los niños

ABSTRACT Introduction The specialized technical teaching and swimming training methods for children are the basis for improving the effect of swimming training and reducing the occurrence of sports injuries. In recent years, swimming physical training technology in China has developed rapidly. Swimming physical training for children can improve the comprehensive sports quality of young people. Objective In this paper, the indexes of 50m butterfly and 50m breaststroke were determined. These data quantitatively examine the effect of the program on swimming performance. Methods 18 children and adolescent swimmers participated in the sample analyzed in this study. In this paper, 18 participants were divided into experimental and control groups. These groups have four swimming styles: butterfly, breaststroke, backstroke, and freestyle. Results After two months of coordination exercises, the performance of butterfly and frog swimming was partially improved. There were significant differences in the data (P<0.05). Conclusion The fitness training process can improve the overall quality of athletes. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução O ensino técnico especializado e os métodos de treinamento em natação para crianças são a base para melhorar o efeito do treinamento de natação e reduzir a ocorrência de lesões esportivas. Nos últimos anos, a tecnologia de treinamento físico em natação na China se desenvolveu rapidamente. O treinamento físico da natação para crianças pode melhorar a qualidade esportiva integral dos jovens. Objetivo Neste artigo, foram determinados os índices de 50m de borboleta e 50m de peito. Estes dados examinam quantitativamente o efeito do programa sobre o desempenho da natação. Métodos Um total de 18 crianças e adolescentes nadadores participaram da amostra analisada neste estudo. Neste trabalho, 18 participantes foram divididos em grupos experimentais e de controle. Estes grupos têm quatro estilos de natação: borboleta, nado de peito, nado de costas e estilo livre. Resultados Após dois meses de exercícios de coordenação, o desempenho do nado borboleta e do nado sapo foi parcialmente melhorado. Houve diferenças significativas nos dados (P<0,05). Conclusão O processo de treinamento de aptidão física pode melhorar a qualidade global dos atletas. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción La enseñanza técnica especializada y los métodos de entrenamiento en natación para niños son la base para mejorar el efecto del entrenamiento de natación y reducir la aparición de lesiones deportivas. En los últimos años, la tecnología del entrenamiento físico de la natación en China se ha desarrollado rápidamente. El entrenamiento físico de natación para niños puede mejorar la calidad deportiva integral de los jóvenes. Objetivo En este trabajo se determinaron los índices de 50 metros mariposa y 50 metros braza. Estos datos examinan cuantitativamente el efecto del programa en el rendimiento de la natación. Métodos Un total de 18 niños y adolescentes nadadores participaron en la muestra analizada en este estudio. En este trabajo, 18 participantes fueron divididos en grupos experimentales y de control. Estos grupos tienen cuatro estilos de natación: mariposa, braza, espalda y estilo libre. Resultados Tras dos meses de ejercicios de coordinación, el rendimiento de la natación en mariposa y rana mejoró parcialmente. Hubo diferencias significativas en los datos (P<0,05). Conclusión El proceso de entrenamiento físico puede mejorar la calidad general de los deportistas. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

Effect of physical activity on homeostasis in professional basketball players according to gender differences / Efeito da atividade física sobre a homeostase dos jogadores profissionais de basquetebol, segundo as diferenças de gênero / Efecto de la actividad física en la homeostasis de los jugadores profesionales de baloncesto, según las diferencias de género

ABSTRACT Introduction One of the main problems of modern basketball physiology is maintaining high performance and improving its players' physical condition. Changes in the athlete's functional condition occur due to the transition of the physiological system from rest to stress, fatigue, and regeneration. Objective Clarify the effect of physical activity on homeostasis in athletes according to gender differences. Methods The methods of analysis and synthesis, comparative analysis, modeling, and logical analysis were applied. Results Positive and negative factors of the influence of physical activity on elementary homeostasis of professional basketball players depending on gender differences were assigned; also, the principles of selection of physical activity content and the methodological bases of application for use in training programs of professional basketball players were characterized. Conclusion The results of this study showed the need to control the elemental body homeostasis of basketball athletes and its changes in physical exertion conditions, considering personal characteristics and gender differences. Evidence level II; Therapeutic studies - outcomes research.

RESUMO Introdução Um dos principais problemas da fisiologia do basquetebol moderno é manter o alto desempenho e melhorar a condição física de seus jogadores. As alterações na condição funcional do atleta ocorrem como resultado da transição do sistema fisiológico do repouso ao estresse e fadiga, e à regeneração. Objetivo Elucidar o efeito da atividade física sobre a homeostase dos atletas, de acordo com as diferenças de gênero. Métodos Foram aplicados os métodos de análise e síntese, análise comparativa, modelagem e análise lógica. Resultados Foram atribuídos fatores positivos e negativos da influência da atividade física na homeostase elementar dos jogadores profissionais de basquetebol, dependendo das diferenças de gênero, também foram caracterizados os princípios de seleção do conteúdo da atividade física e as bases metodológicas da aplicação para utilização de programas de treinamento de jogadores profissionais de basquetebol. Conclusão Os resultados deste estudo mostraram a necessidade de controlar a homeostase elementar corporal dos atletas de basquetebol, suas alterações nas condições de esforço físico, considerando as características pessoais e diferenças de gênero. Evidência nível II; Estudos terapêuticos - pesquisa de resultados.

RESUMEN Introducción Uno de los principales problemas de la fisiología del baloncesto moderno es mantener el alto rendimiento y mejorar la condición física de sus jugadores. Los cambios en la condición funcional del deportista se producen como resultado de la transición del sistema fisiológico del reposo al estrés y la fatiga, y a la regeneración. Objetivo Dilucidar el efecto de la actividad física sobre la homeostasis en los deportistas, según las diferencias de género. Métodos Se aplicaron los métodos de análisis y síntesis, análisis comparativo, modelización y análisis lógico. Resultados Se asignaron los factores positivos y negativos de la influencia de la actividad física en la homeostasis elemental de los jugadores profesionales de baloncesto en función de las diferencias de género, también se caracterizaron los principios de selección del contenido de la actividad física y las bases metodológicas de aplicación para el uso de programas de entrenamiento para jugadores profesionales de baloncesto. Conclusión Los resultados de este estudio mostraron la necesidad de controlar la homeostasis corporal elemental de los deportistas de baloncesto, sus cambios en condiciones de esfuerzo físico, considerando las características personales y las diferencias de género. Nivel de evidencia II; Estudios terapéuticos - investigación de resultados.

Quality in balance sensitivity through martial arts applied to children / Qualidade na sensibilidade do equilíbrio pelas artes marciais aplicadas às crianças / Calidad en la sensibilidad del equilibrio a través de las artes marciales aplicadas a los niños

ABSTRACT Introduction: Martial arts training focuses on science, methodology, and practice. Martial arts are a symbol of physical fitness. The academic analysis of the influence of martial arts training on children's physical health is of great importance for promoting traditional Chinese culture. It can enrich sports intervention programs to improve children's physical health. Objective: Analyze the effect of sensory quality training on martial arts balance training in children. Methods: Children aged 8 to 12 years were selected as research subjects. After repeated deliberations, a children's martial arts set was designed and implemented. The pilot project analyzes the importance of sensory quality in the essential stage of children's martial arts training. Results: After the experiment, there was a significant difference in balance quality in the experimental group (p<0.01). After the experiment, the difference in balance sense between the experimental and control groups was significant (p<0.01). Conclusion: In the basic training phase of children's martial arts, coaches should require athletes to master basic martial arts skills more comprehensively. All movement combinations in martial arts require comprehensive physical fitness and balance sensitivity, including speed, flexibility, and coordination. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução: O treinamento em artes marciais concentra-se na ciência, na metodologia e na prática. As artes marciais são um símbolo de aptidão física. A análise acadêmica da influência do treinamento de artes marciais na saúde física das crianças é de grande importância para a promoção da cultura tradicional chinesa e pode enriquecer os programas de intervenção esportiva para melhorar a saúde física infantil. Objetivo: Analisar o efeito do treinamento de qualidade sensitiva no treinamento de equilíbrio das artes marciais em crianças. Métodos: Selecionou-se crianças de 8 a 12 anos como objetos de pesquisa. Após repetidas deliberações, foi elaborado e implementado um conjunto de artes marciais infantis. O projeto piloto analisa a importância da qualidade sensitiva na etapa essencial do treinamento das artes marciais infantis. Resultados: Após o experimento, houve uma diferença significativa na qualidade do equilíbrio no grupo experimental (p<0,01). Após o experimento, a diferença no sentido de equilíbrio entre os grupos experimental e de controle foi significativa (p<0,01). Conclusão: Na fase de treinamento básico das artes marciais infantis, os treinadores devem exigir que os atletas dominem as habilidades básicas das artes marciais de forma mais abrangente. Todas as combinações de movimentos nas artes marciais exigem aptidão física e sensibilidade de equilíbrio abrangentes, incluindo velocidade, flexibilidade e coordenação. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción: El entrenamiento de las artes marciales se centra en la ciencia, la metodología y la práctica. Las artes marciales son un símbolo de la condición física. El análisis académico de la influencia del entrenamiento de artes marciales en la salud física de los niños es de gran importancia para la promoción de la cultura tradicional china y puede enriquecer los programas de intervención deportiva para mejorar la salud física de los niños. Objetivo: Analizar el efecto del entrenamiento de la calidad sensorial en el entrenamiento del equilibrio en artes marciales en niños. Métodos: Se seleccionaron niños de 8 a 12 años como sujetos de la investigación. Tras repetidas deliberaciones, se diseñó y puso en marcha un conjunto de artes marciales para niños. El proyecto piloto analiza la importancia de la calidad sensorial en la etapa esencial del entrenamiento de artes marciales de los niños. Resultados: Después del experimento, hubo una diferencia significativa en la calidad del equilibrio en el grupo experimental (p<0,01). Tras el experimento, la diferencia en el sentido del equilibrio entre los grupos experimental y de control fue significativa (p<0,01). Conclusión: En la fase de formación básica de las artes marciales infantiles, los entrenadores deberían exigir a los deportistas un dominio más completo de las habilidades marciales básicas. Todas las combinaciones de movimientos en las artes marciales requieren una amplia aptitud física y sensibilidad al equilibrio, incluidas la velocidad, la flexibilidad y la coordinación. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

Influence of strength training on the explosive power of lower limbs of soccer players / Influência do treinamento de força na potência explosiva dos membros inferiores dos jogadores de futebol / Influencia del entrenamiento de fuerza en la potencia explosiva de los miembros inferiores de los futbolistas

ABSTRACT Introduction The explosive power of the lower limbs is an indispensable index in soccer. Having a good level of explosive power establishes a solid foundation for the performance and the competitive level of soccer players. Objective Promote the conditions to improve the explosive level of soccer players and improve their performance and competitive level. Methods This paper presents the influence of compound strength training on the explosive power of the lower limbs of soccer athletes. Based on 27 young 9-year-old soccer players from Zai Ming Football Club of a sports college as experimental material, the composite training was carried out. Results The growth rates of these rates in the experimental group were 3.3%, 2.3%, 5.0%, 3.6%, 9.2%, 12.1%, 20.5%, 5.7%, 11.9%, 16.9% and 19.5% respectively, while those in the control group were 1.2%, 0.7%, 4.2%, 3.1%, 6.8%, 7.8%, 5.1%, 4.2%, 4.8%, 12.5% and 19.2% respectively. The growth rate of the experimental group was higher than that of the control group and the blank control group. Conclusion Compared with the control group and the neutral control group, the experimental group with compound training has a better training effect on improving the lower limb explosiveness of youth soccer players. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução A potência explosiva dos membros inferiores é um índice indispensável no futebol. Ter um bom nível de potência explosiva estabelece uma base sólida para o desempenho e o nível competitivo dos futebolistas. Objetivo Promover as condições para melhorar o nível explosivo dos jogadores de futebol e aperfeiçoar seu desempenho e nível competitivo. Métodos Este documento apresenta a influência do treinamento de força composta no poder explosivo dos membros inferiores dos atletas de futebol. Com base em 27 jovens jogadores de futebol com 9 anos de idade do Zai Ming Football Club de uma faculdade esportiva como material experimental, foi realizado o treinamento composto. Resultados As taxas de crescimento destes índices no grupo experimental foram de 3,3%, 2,3%, 5,0%, 3,6%, 9,2%, 12,1%, 20,5%, 5,7%, 11,9%, 16,9% e 19,5% respectivamente, enquanto os do grupo de controle foram de 1,2%, 0,7%, 4,2%, 3,1%, 6,8%, 7,8%, 5,1%, 4,2%, 4,8%, 12,5% e 19,2% respectivamente. A taxa de crescimento do grupo experimental foi maior do que a do grupo de controle e do grupo de controle em branco. Conclusão Em comparação com o grupo de controle e o grupo de controle neutro, o grupo experimental com treinamento composto tem um melhor efeito de treinamento para melhorar a explosividade dos membros inferiores dos jogadores de futebol juvenil. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción La potencia explosiva de los miembros inferiores es un índice indispensable en el fútbol. Tener un buen nivel de potencia explosiva establece una base sólida para el rendimiento y el nivel competitivo de los futbolistas. Objetivo Promover las condiciones para mejorar el nivel explosivo de los futbolistas y mejorar su rendimiento y nivel competitivo. Métodos Este trabajo presenta la influencia del entrenamiento de fuerza compuesta en la potencia explosiva de los miembros inferiores de los atletas de fútbol. Se llevó a cabo el entrenamiento compuesto con 27 jóvenes jugadores de fútbol de 9 años del Club de Fútbol Zai Ming de una escuela deportiva como material experimental. Resultados Las tasas de crecimiento de estos índices en el grupo experimental fueron del 3,3%, 2,3%, 5,0%, 3,6%, 9,2%, 12,1%, 20,5%, 5,7%, 11,9%, 16,9% y 19,5% respectivamente, mientras que las del grupo de control fueron del 1,2%, 0,7%, 4,2%, 3,1%, 6,8%, 7,8%, 5,1%, 4,2%, 4,8%, 12,5% y 19,2% respectivamente. La tasa de crecimiento del grupo experimental fue mayor que la del grupo de control y del grupo de control en blanco. Conclusión En comparación con el grupo de control y el grupo de control neutro, el grupo experimental con entrenamiento compuesto tiene un mejor efecto de entrenamiento para mejorar la explosividad de las extremidades inferiores de los futbolistas juveniles. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

Impacts of balance training on tennis players' performance / Impactos do treino de equilíbrio sobre o desempenho dos jogadores de tênis / Efectos del entrenamiento del equilibrio en el rendimiento de los tenistas

ABSTRACT Introduction Maintaining body balance is a prerequisite for good tennis practice. Therefore, the demands of technical movements for competitive playability are achieved only after players have improved balance. Objective Analyze the impacts of balance training on the performance of tennis players. Methods 24 male tennis college students, 18 to 21 years old, were selected and divided into experimental and control groups. The intervention took place under a specific balance training protocol for eight weeks, and data were collected in the experimental group before and after the intervention. Results The test time with eyes closed in unipodal support, Romberg test, eyes closed standing, and walking standing in the experimental group was 37.340 ± 14.382s, 67.250 ± 30.275s, 21.070 ± 7.887s and 4.510 ± 0.540s respectively, showing statistical superiority over the control group. Conclusion After eight weeks of balance training exercise intervention, compared with the subjects without instability training exercise intervention, the subjects' static and dynamic balance ability after eight weeks of training were significantly improved. Level of Evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução A manutenção do equilíbrio corporal é pré-requisito básico para uma boa prática no tênis. Portanto, as exigências dos movimentos técnicos para jogabilidade competitiva são alcançadas somente depois que os jogadores têm um aprimoramento do equilíbrio. Objetivo Analisar os impactos do treinamento de equilíbrio sobre o desempenho dos jogadores de tênis. Métodos 24 estudantes universitários de tênis masculinos de 18 a 21 anos foram selecionados e divididos em grupo experimental e grupo de controle. A intervenção deu-se por protocolo específico de treino de equilíbrio durante oito semanas e os dados foram coletados previamente e posteriormente à intervenção do grupo experimental. Resultados O tempo de teste com os olhos fechados em apoio unipodal, teste de Romberg, olhos fechados em pé e andar de pé no grupo experimental foi de 37.340 ± 14.382s, 67.250 ± 30.275s, 21.070 ± 7.887s e 4.510 ± 0.540s respectivamente, apresentando superioridade estatística frente ao grupo controle. Conclusão Após oito semanas de intervenção de exercício de treinamento de equilíbrio, em comparação com os sujeitos sem intervenção de exercício de treinamento instável, a capacidade de equilíbrio estático e a capacidade de equilíbrio dinâmico dos sujeitos após 8 semanas de treinamento foram significativamente aprimoradas. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción El mantenimiento del equilibrio corporal es un requisito básico para la buena práctica del tenis. Por lo tanto, las exigencias de los movimientos técnicos para la jugabilidad competitiva se logran sólo después de que los jugadores tengan una mejora del equilibrio. Objetivo Analizar el impacto del entrenamiento del equilibrio en el rendimiento de los tenistas. Métodos Se seleccionaron 24 estudiantes universitarios de tenis, de entre 18 y 21 años, y se dividieron en un grupo experimental y un grupo de control. La intervención se llevó a cabo mediante un protocolo específico de entrenamiento del equilibrio durante ocho semanas y se recogieron datos antes y después de la intervención en el grupo experimental. Resultados El tiempo de prueba con los ojos cerrados en apoyo unipodal, la prueba de Romberg, los ojos cerrados de pie y la marcha de pie en el grupo experimental fue de 37,340 ± 14,382s, 67,250 ± 30,275s, 21,070 ± 7,887s y 4,510 ± 0,540s respectivamente, presentando superioridad estadística sobre el grupo de control. Conclusión Después de ocho semanas de intervención de ejercicios de entrenamiento de equilibrio, en comparación con los sujetos sin intervención de ejercicios de entrenamiento de inestabilidad, la capacidad de equilibrio estático y la capacidad de equilibrio dinámico de los sujetos después de 8 semanas de entrenamiento mejoraron significativamente. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

Special training for athletes to improve their physical and sportive capacity / Treinamento especial para atletas visando aprimorar sua capacidade física e esportiva / Entrenamiento especial para atletas con el objetivo de mejorar su capacidad física y deportiva

ABSTRACT Introduction: Athletes' physical fitness is an important factor in achieving good results in the game. Exercise and physical skills training are important means of improving competitive sports. No matter the type of sporting event, there are strict regulations on players' physical fitness. Objective: Analyze the special methods of physical exercise to improve the physical quality of athletes. The results can provide a reference for coaches to formulate more scientifically specific training programs for athletes. Methods: Several athletes with certain sports skills are selected as subjects. The objective of this work is to detect the level of physical fitness of the athletes. And based on this, a statistical analysis of their motor function was performed. Finally, an empirical study is conducted using mathematics and statistics. Results: The difference between the athletes was statistically significant (P<0.05). There were significant differences in athletic ability, physical attractiveness, and body mass among the special exercises for athletic ability (P<0.05). Conclusion: The methods for improving physical quality in male and female athletes were successful in athletes of different disciplines. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução: A aptidão física do atleta é um fator importante para alcançar bons resultados no jogo. O exercício físico e o treinamento das habilidades físicas são meios importantes para melhorar o nível dos esportes competitivos. Não importa o tipo de evento esportivo, existem regulamentos rigorosos sobre a aptidão física dos jogadores. Objetivo: Analisar os métodos especiais de exercício físico para melhorar a qualidade física dos atletas. Os resultados podem fornecer uma referência para que os treinadores formulem programas de treinamento mais científicos específicos para atletas. Métodos: São selecionados vários atletas com determinadas habilidades esportivas como disciplinas. Para detectar o nível de aptidão física dos atletas esportistas, foi realizada uma análise estatística de sua função motora. Um estudo empírico é realizado por meio de matemática e estatística. Resultados: A diferença entre os atletas foi estatisticamente significativa (P<0,05). Houve diferenças significativas na capacidade atlética, atratividade física e massa corporal entre os exercícios especiais para capacidade atlética (P<0,05). Conclusão: Os métodos para melhorar a qualidade física de atletas masculinos e femininos obtiveram êxito em atletas de distintas disciplinas. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción: El estado físico del deportista es un factor importante para conseguir buenos resultados en el juego. El ejercicio físico y el entrenamiento de las habilidades físicas son medios importantes para mejorar el nivel de los deportes de competición. Independientemente del tipo de evento deportivo, existen normas estrictas sobre la forma física de los jugadores. Objetivo: Analizar los métodos especiales de ejercicio físico para mejorar la calidad física de los deportistas. Los resultados pueden servir de referencia para que los entrenadores formulen programas de entrenamiento más específicos desde el punto de vista científico para los deportistas. Métodos: Se seleccionan como sujetos varios atletas con determinadas habilidades deportivas. El objetivo de este trabajo es detectar el nivel de aptitud física de los deportistas. Y en base a ello, se realizó un análisis estadístico de su función motora. Por último, se realiza un estudio empírico por medio de las matemáticas y la estadística. Resultados: La diferencia entre los atletas fue estadísticamente significativa (P<0,05). Hubo diferencias significativas en la capacidad atlética, el atractivo físico y la masa corporal entre los ejercicios especiales para la capacidad atlética (P<0,05). Conclusión: Los métodos para mejorar la calidad física en los atletas masculinos y femeninos tuvieron éxito en atletas de diferentes disciplinas. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.