Correlación y comparación entre el nivel de actividad física y flexibilidad en niños y niñas de 10 a 11 años de edad de un colegio de Concepción. Chile / Correlation and comparison between the level of physical activity and flexibility in boys and girls from 10 to 11 years of age from a school in Concepción. Chile

RESUMEN. El estudio se centró en determinar los niveles de actividad física que presentan los escolares de 10 a 11 años que asisten a un Colegio de la Ciudad de Concepción, relacionarlo y compararlo con la flexibilidad. La metodología utilizada corresponde a un estudio cuantitativo, transversal, descriptivo-correlacional; con muestreo intencionado, se evaluó a 49 escolares, para medir el nivel de actividad física se utilizó la encuesta INTA y para medir la flexibilidad se utilizó el test de V-Sit And Reach. Se utilizó la prueba de Shapiro Wilk arrojando la normalidad de los datos, la prueba Z score para establecer medias, la prueba t de Student para el nivel de significancia entre grupo, y, por último, en la relación de las variables se empleó la correlación de Pearson. Los resultados muestran que las niñas tienen un nivel de flexibilidad mayor a los niños siendo estadísticamente significativa, en cambio en el nivel de actividad física se obtiene un nivel regular no existiendo diferencias significativas. No existe correlación entre las variables estudiadas.

ABSTRACT. The study focuses on determining levels of physical activity presented by children between the ages 10 and 11, attending a school in the City of Concepción, relating it and comparing it with flexibility. The methodology used corresponds to a quantitative, cross-sectional, descriptive-correlational study; with intentional sampling, 49 students were evaluated, the INTA survey was used to assess the level of physical activity, and the V-Sit And Reach test were used to measure flexibility. The Shapiro-Wilk test was used, yielding the normality of the data, the Z score test to establish means, the Student's T test for the level of significance between the groups, and, finally, for the relationship of the variables, Pearson's correlation was used. The results show that girls have a higher level of flexibility than boys, being statistically significant, while in the level of physical activity a regular level is obtained, without significant differences. There is no correlation between the variables studied.

Effect Of Padahastasana In Improving Hamstring Muscle Flexibility Among Young Adults

CONTEXT: Hamstring muscle is actively involved in various activities of daily living like walking, stair climbing etc. The flexibility of Hamstring muscle is found to be commonly compromised among various age groups. This may be due to ineffective use of the muscle to full extensibility in routine activities. Padahastasana is a yogasana in standing position which induces maximum stretch to posterior structures of thigh including Hamstring muscle. AIMS:This study aims to investigate the effect of Padahastasana in improving flexibility of Hamstring muscle SETTINGS AND DESIGN:Experimental Design with random sampling method conducted among 20 subjects. METHODS AND MATERIAL: Subjects were recruited for the study based on inclusion and exclusion criteria. Hamstring flexibility was assessed using sit and reach box - a standardized tool to measure Hamstring flexibility. The selected subjects were taught the technique of Padahastasana and practiced for twelve weeks – six times in a day and minimum five days per week. After twelve weeks of practice, hamstring flexibility was assessed using sit and reach box. STATISTICALANALYSIS:Analysis was conducted using't' test Results: The study showed significant improvement (t value – 13.01 at p≤0.05) in Hamstring muscle flexibility by performing 12 weeks Padahastasana practice. CONCLUSIONS: Padahastasana can be recommended to prevent and treat Hamstring muscle tightness

Effectiveness of Pilates training in improving hamstring flexibility of football players.

Objective: The kick force is effective only if the flexibility of the muscle is in accord. The stretching capacity of tendons, ligaments and capsule are very limited due to the function of articular stabilization. Pilates exercises are to be performed to improve muscular flexibility with greater movement breadth, strength and fluency. Lack of flexibility is a limiting factor for performance and being a facilitator for muscular injuries. Materials and Methods: Goniometer, Sit and reach table and Exercise mat. 30 football players were randomly distributed into two groups, Pilates group (n=15) and control group (n=15). Control group was given Ballistic, PNF and Static stretching exercises and Pilates group was given Pilates protocol respectively. Both the groups were trained 5 times a week for 4 weeks, 30 minutes each session. Pre and post outcome measures of Goniometer and sit and reach test were taken. Results: The Pilates group training reported a higher level of improvement than control group (p< 0.05).

Utilização da biofotogrametria para a avaliação da flexibilidade de tronco / Use of biophotogrammetry for assessment of trunk flexibility

INTRODUÇÃO: a ginástica rítmica (GR) é uma modalidade de ginástica que requer alto grau de flexibilidade, em virtude dos movimentos complexos que são requeridos. OBJETIVO: esta pesquisa objetivou comparar o teste de sentar e alcançar (TSA) e a técnica de biofotogrametria como indicadores de flexibilidade de tronco, em praticantes iniciantes de GR. METODOLOGIA: a amostra contou com 60 meninas (de cinco a 11 anos de idade) de um universo de 110, todas matriculadas em um centro de iniciação esportiva no estado do Paraná. A coleta de dados foi realizada no mês de novembro do ano de 2009. Para a comparação TSA com a biofotogrametria, foram traçados os ângulos de flexão da pelve (WP), flexão da coluna lombar (WC) e flexão do total do tronco (WT). RESULTADOS: o resultado médio atingido pelas participantes na escala do TSA foi de 27,75cm. Encontrou-se forte correlação do ângulo WT com o TSA. Por ser uma composição de WC e WP, o WT possibilita uma visualização global da distância do tronco até os membros inferiores quando ocorre a flexão durante o teste. Por isso, as correlações entre os ângulos são boas e significativas. CONCLUSÃO: uma vez que o TSA apresenta alguns fatores intervenientes que podem mascarar o seu resultado, a biofotogrametria é discutida como um teste que permite observar, através de imagens fotográficas e cálculos angulares, dados fidedignos para a mensuração de flexibilidade e compensações musculares não identificadas normalmente.

INTRODUCTION: Rhythmic Gymnastics (RG) is a type of gymnastics that requires a high degree of flexibility due to the complexity of the required movements. OBJECTIVE: this study aimed to compare the sit and reach test (SRT) and the Biophotogrammetry technique as indicators of trunk flexibility in beginning GR practitioners. METHODS: the sample included 60 girls (5-11 years old) from a universe of 110, all enrolled in a Center for Sports Initiation in Parana State. Data collection was performed in November, 2009. IN order to compare the TSA and biophotogrammetry, angles of the pelvis (WP), spinal flexion (WC) and total trunk flexion (WT) were drawn. RESULTS: the average score achieved by the participants on theTSA scale was 27.75 cm. A strong correlation was found between WT angle and the TSA values. Since it is a combination of the WC and WP, the WT provides a global view of the distance from the trunk to the legs when bending occurs during the test. Therefore, the correlations between the angles are good and meaningful. CONCLUSION: since the TSA has some intervening factors that may mask the result, biophotogrammetry is discussed as a test that allows the observation of reliable data for measuring flexibility and muscle compensation which are not usually identified, through photographs and angular calculations.

Concordância entre os critérios para flexibilidade de crianças e adolescentes estabelecidos pela physical best e fitnessgram / Agreement between the criteria for children and adolescents´flexibility established by the physical best and the fitnessgram

O objetivo deste estudo foi verificar a concordância entre dois critérios para flexibilidade de crianças e adolescentes, bem como entre os testes utilizados. A amostra foi composta por 59 meninos e 54 meninas, com idades entre oito e dezesseis anos, de uma mesma escola estadual de Londrina, Paraná - Brasil. Na coleta dos dados foram utilizados o Teste de "Sentar-e-alcançar" (PHYSICAL BEST) e o de "Sentar-e-alcançar" alternado (FITNESSGRAM) em um banco de dimensões específicas. Os resultados indicaram uma concordância moderada entre os critérios para meninas (K=0,594, P<0,001) e boa para os meninos (K=0,619, P<0,001). O atendimento dos critérios foi menor entre os meninos com o uso da PHYSICAL BEST. A concordância dos resultados nos testes esteve dentro de limites aceitáveis (média das diferenças de -0,38 a 1,38 cm), e foi verificada correlação de forte a muito forte (r=0,844 a r=0,914). A classificação nos critérios e os resultados obtidos nos testes parecem semelhantes.

The purpose of this study was to verify the agreement between two criteria for flexibility on children and adolescents and between the tests results. The sample involved 59 boys and 54 girls in the age range from 8 to 16 years old, belonging to the same elementary school from the city of Londrina, Parana, Brazil. The data collection used the "Sit-and-Reach" Test (PHYSICAL BEST) and the Back Saver "Sit-and-Reach" Test (FITNESSGRAM) using a bench with specific dimensions. The results indicated a moderate agreement level between the criteria for girls (K=0.594, P<0.001) and good for boys (K=0.619, P<0,001). The passing rates of the criteria were lower in boys using the PHYSICAL BEST. The agreement of tests results were within acceptable levels (mean difference of -0.38 to 1.38 cm) and it were found a strong to very strong relationship (r=0.844 to r=0.914). The criteria classification and the obtained results in the tests were similar.