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1.
Rev. méd. Chile ; 149(1)ene. 2021.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1389348

ABSTRACT

Background: Among older people, physical exercise improves cognitive function, aerobic fitness, and thus functional independence. Aim: To determine the effects of a walking training program on aerobic fitness and cognitive function in older women with type 2 diabetes mellitus. Material and Methods: An experimental study was carried out in 76 women with type 2 diabetes mellitus aged between 64 and 78 years. Thirty-eight women in the exercise group (EG) participated in a controlled walking program 3 times a week for 48 sessions (60min /day) and 38 women in the control group (CG) were not trained. Weight, height, body mass index (BMI), estimated maximal oxygen uptake (VO2max), and cognitive function using the Minimental test were evaluated at baseline and the end of the intervention. Results: The Minimental test improved significantly in the exercise group and did not change in the control group. Estimated VO-2max improved in women aged between 69 and 78 years. The distance walked in 6 minutes increased in all women of the experimental group. No changes in these parameters were observed in the control group. Conclusions: A structured walking program improved cognitive function, estimated aerobic capacity, and walking distance in these diabetic women.

2.
Rev. Univ. Ind. Santander, Salud ; 52(4): 372-379, Octubre 21, 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1340836

ABSTRACT

Resumen Introducción: La hipertensión arterial presenta una alta prevalencia y es un factor de riesgo importante para el desarrollo de enfermedades cardiovasculares, las cuales afectan mayormente a personas mayores (PM). Como estrategia terapéutica el entrenamiento isométrico de fuerza prensil (EIFP) ha demostrado resultados efectivos en la respuesta hipotensora. Sin embargo, el comportamiento fisiológico de la oxigenación muscular durante y posterior al entrenamiento sigue siendo inespecífica. Objetivo: Analizar los efectos de un protocolo de entrenamiento isométrico de fuerza prensil de intensidad ascendente comparado con un protocolo de entrenamiento isométrico de fuerza prensil al 30% de la contracción máxima voluntaria (CMV) sobre la presión arterial y la cinética de oxigenación muscular en personas mayores hipertensas tipo1. Materiales y métodos: Estudio cuasi-experimental con grupo control en 50 personas mayores físicamente activas (hombres 20 y 30 mujeres) hipertensos tipo 1 farmacológicamente controlados, pertenecientes a la YMCA Santiago, edad promedio 69,6 (± 1,18) años. Muestreo intencional, no probabilístico y aleatorio, considerando criterios de inclusión y exclusión. Se realizó un entrenamiento isométrico de intensidad ascendente (10%, 20%, 30% CMV) de fuerza prensil durante 4 semanas, en un grupo experimental (GE; n: 25), contrastado con un entrenamiento isométrico de fuerza prensil (30 % CMV) grupo control (GC; n: 25). Se valoraron las siguientes variables hemodinámicas y antropométricas: frecuencia cardiaca (FC), presión arterial (PA), oxigenación muscular (OM %), e índice de masa corporal (IMC), analizando los cambios previos y posterior al entrenamiento. Resultados: El análisis estadístico se realizó mediante la prueba de U de Mann-Whitney. En ambos grupos posterior a la intervención disminuyó de manera significativa la presión arterial sistólica (PAS) (GC: 123,6 ± 2,42 a 114,6 ± 2,36 p = 0,01* y GE: 128,1 ± 1,56 a 111,4 ± 2,31 p < 0,00* mmHg) y FC (70,84 ± 1,92 a 64,08 ± 1,87 p = 0,01* y 69,72 ± 2,01 a 64 ± 1,98 p = 0,04* lpm) respectivamente. El mayor cambio de oxigenación muscular (OM) se observa sólo en el GE (57,68 ± 1,34 a 64,56 ± 1,05 p = 0,00* OM%). Conclusión: El entrenamiento isométrico de fuerza prensil de intensidad ascendente es un método valioso y mejor tolerado en personas mayores para disminuir de manera aguda la PA y mejorar el porcentaje de oxigenación muscular posterior al ejercicio. En cuanto al uso de los sensores de espectroscopía del infrarrojo cercano (NIRS) Moxy, podrían desempeñar un papel importante en la mejora del conocimiento científico respecto del metabolismo oxidativo del músculo. No obstante se requieren evaluaciones futuras para determinar los límites basales de oxigenacion muscular.


Abstract Introduction: High blood pressure has a high prevalence and is an important risk factor for the development of cardiovascular diseases, which mostly affect the elderly (PM). As a therapeutic strategy, the isometric hand grip strength training has demonstrated effective results in the hypotensive response. However, the physiological behavior of muscle oxygenation during and after exercise remains unspecified. Objective: Analyze the effects of an isometric training protocol for hand grip strength of ascending intensity compared to an isometric training protocol for hand grip strength at 30% of the maximum voluntary contraction on blood pressure and muscle oxygenation kinetics in hypertensive elderly people type1. Materials and methods: Quasi-experimental study with a control group in 50 physically active elderly people (men 20 and 30 women) pharmacologically controlled type 1 hypertensive, belonging to the YMCA Santiago, average age 69.6 (± 1.18). Intentional, non-probabilistic and random sampling, considering inclusion and exclusion criteria. An ascending intensity training (10%, 20%, 30% of the maximum voluntary contraction CMV) of hand grip strength was performed for 4 weeks, on an experimental group (GE; n: 25), contrasted with an isometric training (30% CMV) control group (GC; n: 25). The following hemodynamic and anthropometric variables were assessed: heart rate (HR), blood pressure (BP), muscle oxygenation (OM%), weight, height and body mass index (BMI), analyzing the changes before and after training. Results: Statistical analysis was performed using the Mann-Whitney U test. In both groups after the intervention, systolic blood pressure (SBP) decreased significantly (GC: 123.6 ± 2.42 to 114.6 ± 2.36 p = 0.01 and GE: 128.1 ± 1, 56 to 111.4 ± 2.31 p <0.000 mmHg) and FC (70.84 ± 1.92 to 64.08 ± 1.87 p = 0.01 and 69.72 ± 2.01 to 64 ± 1.98 p = 0.04 bpm) respectively. The greatest change in muscle oxygenation (OM) is observed only in the GE (57.68 ± 1.34 to 64.56 ± 1.05 p = 0.00 OM%). Conclusion: Isometric training protocol for hand grip strength of ascending intensity is a valuable and better tolerated method in older people to decrease BP and improve the percentage of post-exercise muscle oxygenation. Regarding the use of Moxy near infrared spectroscopy (NIRS) sensors, they could play an important role in improving scientific knowledge regarding oxidative muscle metabolism. However, future evaluations are required to determine baseline muscle oxygenation limits.


Subject(s)
Humans , Aged , Physiology , Exercise , Hypertension , Technology , Mentoring
3.
Rev. méd. Chile ; 148(4): 469-477, abr. 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1127087

ABSTRACT

Background Physical activity and dietary prescription are the mainstay of overweight and obesity management. Aim To compare the effects of physical activity or dietary management in overweight or obese sedentary women. Material and Methods Thirty-four physically inactive adult women with overweight or obesity, were intentionally divided into three groups: controls (C), exercise (E) and dietary prescription (DP). Women in the E group were trained in a circuit for twelve weeks and a hypocaloric diet was prescribed to those in the DP group. Blood pressure, body composition and phase angle (FA) measured using bioimpedance and dynamometry, were measured at baseline and the end of the intervention. Results Women in the E group had a significant increase in muscle mass and intracellular water and significant decreases in systolic and diastolic blood pressure levels. No significant differences in dynamometry were observed between groups. The DP group had significant decreases in body weight, fat mass, body mass index, waist circumference, systolic and diastolic blood pressure. Conclusions The DP group had a higher weight reduction than the E group. Dietary prescription should be complemented with a physical activity program in the management of overweight or obesity.


Subject(s)
Humans , Female , Overweight , Obesity , Exercise , Diet , Exercise Therapy
4.
Rev. chil. nutr ; 46(6): 690-700, dic. 2019. tab, graf
Article in Spanish | LILACS | ID: biblio-1058131

ABSTRACT

RESUMEN En Chile existe escasa evidencia en relación a las características de los estilos de vida en mujeres dueñas de casa versus mujeres con trabajos renumerados. El objetivo del estudio fue comparar marcadores de adiposidad, hábitos de consumo asociados a estilos de vida y nivel de actividad física (AF) en mujeres dueñas de casa y trabajadoras remuneradas chilenas. Se compararon variables de adiposidad como el índice de masa corporal (IMC), peso corporal, perímetro de cintura (PC), estilos de vida y niveles de AF (transporte, moderada y vigorosa intensidad y tiempo sedente) de 2.232 participantes de la Encuesta Nacional de Salud 2009-2010. Las dueñas de casa, en comparación con las trabajadoras renumeradas, presentaron un mayor IMC (27,9 vs. 20,0 kg/m2, <0,0001) y PC (98,3 vs. 95,6 cm, <0,0001). El tiempo destinado a la práctica de AF de trasporte (42,5 vs. 51,5 min/día, p= 0,009), moderada (94,2 vs. 128,4 min/día, <0,0001) y vigorosa (25,06 vs. 53,49 min/día, <0,0001) fue menor en dueñas de casa que en trabajadoras renumeradas. Por el contrario, las dueñas de casa destinaron menor tiempo al desarrollo de actividades sedentes (2,71 vs. 3,26 horas/día, <0,0001), además mostraron un menor consumo de alcohol (30,5 vs. 43,2 g/día, p= 0,021) en comparación a trabajadoras renumeradas.


ABSTRACT Lifestyle behaviours among women who take care of their home duties (housewives) and women who are currently working in paid employment is unknown in the Chilean population. The aim of this study was, therefore, to characterise adiposity, lifestyle behaviours and physical activity levels in housewives and women with paid employment in Chile. A total of 2,231 women from the National Health Survey 2009-2010 were included in this study. Adiposity markers (body weight, body mass index and waist circumference), lifestyle behaviors and physical activity were measured using self-reported questionnaires. The main findings of this study was that housewives had a higher body mass index (27,9 vs. 20,0 kg/m2, <0,0001) and waist circumference (98,3 vs. 95,6 cm, <0,0001) than women with paid-employment. Physical activity levels were lower (transport PA 42,5 vs. 51,5 min/day, p= 0,009, moderate PA 94,2 vs. 128,4 min/ day, <0,0001 and vigorous PA 25,06 vs. 53,49 min/day, <0,0001) and sedentary-related behaviours (2,71 vs. 3,26 hours/day, <0,0001) were higher in housewives compare to women with paid-employment. Dietary behaviors showed that housewives consume less alcohol (30,5 vs. 43,2 g/day, p= 0,021) than women with paid-employment.


Subject(s)
Humans , Female , Adult , Middle Aged , Exercise , Adiposity , Feeding Behavior , Life Style , Women, Working , Body Mass Index , Chile , Anthropometry , Adipose Tissue , Age Distribution , Waist Circumference , Sedentary Behavior
5.
Biomédica (Bogotá) ; 38(4): 496-506, oct.-dic. 2018. tab, graf
Article in English | LILACS | ID: biblio-983959

ABSTRACT

Introduction: The deterioration of cognition is highly predominant in older adults. Objective: The aim of this study was to analyze the effects of a walking program on the cognition and blood concentration of lipids in women over 60 years of age who were being treated with lovastatin. Materials and methods: Participants were distributed in two groups: An exercise group (EG, n=45) with aerobic training and an inactive sedentary group (SG, n=22). The cognitive state of the subjects was assessed through the Spanish Mini-Cog Test version of the MMSE; lipoproteins were quantified using a lipid profile test, and the cardiorespiratory fitness was measured using the six-minute walking test (6MWT). Results: EG showed a significant increase (p<0.05) in cardiorespiratory fitness and in HDL-C concentrations. Furthermore, the results from the cognition tests showed a large effect size in spatial orientation and in and calculation. The decrease in LDL-C was not significant (p>0.05). Conclusion: A controlled and progressive walking program for older women treated with Lovastatin may induce a boost of brain activity linked to HDL-C, which could delay cognitive impairment.


Introducción. El deterioro cognitivo tiene una gran incidencia en el adulto mayor. Objetivo. El principal objetivo de este estudio fue analizar los efectos sobre la cognición y la concentración de lípidos de un programa de caminatas en mujeres mayores de 60 años tratadas con lovastatina. Materiales y métodos. Las participantes se distribuyeron en dos grupos: uno con ejercicio (EG, n=45) sometido a entrenamiento aeróbico y otro inactivo o sedentario (SG, n=22). El estado cognitivo se evaluó mediante la versión en español del Mini-Mental Test. Los niveles de lipoproteínas se midieron con una prueba de perfil lipídico y la aptitud cardiorrespiratoria se valoró con la prueba de caminata de 6 minutos (Six-Minute Walking Test, 6MWT). Resultados. El grupo con ejercicio mostró una mejora significativa (p<0,05) de la aptitud cardiorrespiratoria y de las concentraciones de colesterol HDL. Además, en la prueba de cognición se observó un efecto de gran tamaño en la orientación espacial, en la atención y en el cálculo. La reducción del colesterol LDL no fue significativa. Conclusión. Un programa de entrenamiento progresivo y supervisado para mujeres mayores tratadas con lovastatina, podría mejorar la actividad cerebral relacionada con el colesterol HDL, lo cual podría retrasar el deterioro cognitivo.


Subject(s)
Exercise , Cognition , Dyslipidemias , Aging , Mental Health , Hydroxymethylglutaryl-CoA Reductase Inhibitors
6.
Int. j. morphol ; 31(4): 1355-1364, Dec. 2013. ilus
Article in Spanish | LILACS | ID: lil-702317

ABSTRACT

El objetivo de este estudio fue describir las características antropométricas, la composición corporal y el somatotipo de una muestra internacional de jugadores de tenis de mesa de alto nivel clasificados entre los 150 mejores jugadores del mundo. En el estudio participaron un total de 31 jugadores (18 varones y 13 mujeres) de categoría absoluta. Todos los deportistas analizados en el estudio competían de manera regular en la Superdivisión, máxima categoría de la liga española y en pruebas internacionales de carácter oficial (ETTU e ITTF). La muestra fue distribuida en dos grupos atendiendo al sexo. Un total de 16 variables antropométricas fueron evaluadas. Se encontraron diferencias estadísticamente significativas en la masa, talla, IMC (p<0,01), en cinco pliegues (p<0,05), en dos perímetros (p<0,01) y en todos los diámetros (p0,01). Asimismo se encontraron diferencias en el componente endomórfico y mesomórfico del somatotipo (p<0,02). El grupo masculino presentó una distribución del somatotipo mesomorfo balanceado (2,5-4,6-2,6) mientras que el grupo femenino fue endo-mesomórfico (4,0-3,4-2,9). Los resultados obtenidos sugieren un biotipo diferente a los datos de referencia, presentando los hombres menor endomorfia mientras que las mujeres alcanzan mayores niveles en su endomorfia y un descenso en la mesomorfia. Este estudio aporta datos biotipológicos actualizados de referencia para la población de elite de tenis de mesa.


The aim of this study was to analyze the anthropometric profile, body composition and somatotype of international top-level table tennis players belonging to the 150 best world players. A total of 31 players (18 males and 13 females) belonging to the absolute category were evaluated. All of them played regularly in the "Superdivision", the highest Spanish table tennis championship category as well as in other official international championships (ETTU e ITTF). Participants were divided into two groups according to their sex and a total of 16 anthropometric variables were assessed. Statistically significant differences were recorded in: body mass, height and BMI values (p<0.01); seven skinfolds (p<0.05), two girths (p<0.01) and in all breadths (p<0.01). Significant differences were also found between the somatotype mesomorph and endo-mesomorph profiles (p<0.02). A balanced mesomorph somatotype was found for males (2.5-4.6-2.6) while females recorded a mesomorph-endomorph somatotype (4.0-3.4-2.9). These results highlight a different biotype if compared with reference data with less endomorphy between males and an improvement of endomorphy and less mesomorphy between females. This study provides new biotypology data that represent a suitable reference for elite table tennis players.


Subject(s)
Humans , Male , Adult , Female , Young Adult , Anthropometry , Body Composition , Somatotypes , Tennis , Skinfold Thickness , Sex Distribution
7.
Hacia promoc. salud ; 15(2): 45-63, jul.-dic. 2010. tab, ilus
Article in Spanish | LILACS | ID: lil-613206

ABSTRACT

Objetivo: el objetivo del estudio fue conocer los efectos de dos programas de entrenamiento sobre la fuerza muscular, la glicemia y la presión arterial en adultos mayores. Material y método: se estudiaron dos grupos, Grupo Experimental Uno (G1) (n=11) con entrenamiento de fuerza muscular contra resistencia y Grupo Experimental Dos (G2) (n=20) con entrenamiento aeróbico basado en caminatas. Se evaluó la presión arterial (PA), la glucemia y la Fuerza Máxima estimada indirectamente con en un test de máximas repeticiones en los siguientes ejercicios: Prensa Sentado (PS), Press de Banca (PB) y Extensiones de Rodilla (ER). Se midieron todas las variables al inicio y al final del programa de entrenamiento. Resultados: los resultados obtenidos evidenciaron un mayor aumento de la fuerza en el G1; en PB (p<0,001), ER (p<0,001) y PS (p<0,05), mientras que el G2 no se registraron diferencias. En el G1, la PA sistólica pos-programa, disminuyó significativamente (p<0,001), mientras que en el G2 no se produjeron cambios. La glicemia intrasesión disminuyó significativamente en ambos grupos. El programa de fuerza muscular indujo mayores aumentos en la fuerza muscular y disminuyó más la Presión Arterial Sistólica que el entrenamiento aeróbico.


Objective: the aim of the study was to know the effects of two training programs on muscular strength, glycemia and blood pressure in the elderly. Material and Method: two groups were studied, Experimental Group 1, (G1) (n 11) with training in muscle strength against resistance, and Experi mental Group Two (G2) (n=20) with aerobic training based on walking. Blood pressure (BP) was evaluated, and glycemia and estimated Maximum Strength were indirectly estimated with a maximum repetitions test in the following exercises: Leg Press (LP), Bench Press (BP), and Knee Extension (KE). Al variables at the beginning and the end of the training program were measured. Results: the results obtained showed a higher increase in the strength in G1; in BP (p<0,001), KE (p<0,001) y PL (p<0,05): while in G2 there were no changes. In G1 the post-program systolic BP decreased significantly (p<0,001) while in G2 there were no changes. Intra-session glycemia diminished considerably in both groups. The muscle strength program induced a greater increase in muscle strength and decreased the Systolic Blood Pressure more than the aerobic training.


Objetivo: o objetivo da pesquisa foi conhecer os efeitos de dois programas de treinamento sobre a força muscular, a glicemia e a pressão arterial em adultos mais velhos. Material e métodos: pesquisaram se dois grupos, Grupo Experimental. (G1) (n=11) com treinamento de força muscular contra resistência e grupo experimental Dois (G2) (n=20) com treinamento aeróbico baseado em caminhadas. Avaliou se a pressão arterial (PA), a glicemia e a Força Máxima estimada indiretamente com um teste de máximas repetições nos seguintes exercícios: Prensa Sentada (PS), Press de Banca (PB) e extensões de Joelho (ER). Mediram se todas as variáveis ao inicio e ao final do programa de treinamento. Resultados: Os resultados obtidos evidenciaram um maior aumento da força no G1; em PB (p<0,001), ER (p<0,001) y PS (p<0,05), enquanto que o G2 não registraram se diferencias. No G1, a PA sistólica post – programa diminuiu significativamente (p<0,001), quanto que no G2 não produziram se câmbios. A glicemia intrasesão diminuiu significativamente nos dois grupos. O programa de força muscular induziu maiores aumentos na força muscular e diminuiu mais a Pressão Arterial Sistólica que o treinamento aeróbico.


Subject(s)
Adult , Middle Aged , Aged , Mentoring , Exercise/physiology , Muscle Strength , Blood Glucose , Blood Pressure
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