Effects of a 20-week concurrent training program on bone metabolism in elderly women / Efecto de 20 semanas de entrenamiento concurrente sobre el metabolismo óseo de adultas mayores

The present study evaluated the effect of a 20-week concurrent training program on bone metabolism in elderly women. The sample consisted of 51 elderly women living in the municipality of Muriaé (MG), distributed into two groups: a concurrent training group (CTG = 25), with an average age of 69.44 ± 6.82 years, and a control group (CG = 26), with mean age of 68.30 ± 6.34 years. Biophysical parameters were determined based on weight, height and body mass index. Bone metabolism was assessed by collecting second-morning urine samples before and after intervention to analyze levels of the biochemical marker deoxypyridinoline (DPD), which quantifies bone resorption. Results: The results showed a post-intervention decline in DPD content in the GTC when compared to controls (p = 0.007) and an improvement in the variables weight, BMI and DPD between the GTC and GC (p = 0.000). Conclusion: Concurrent training was efficient in improving bone metabolism in the elderly population studied.

El presente estudio evaluó los efectos de 20 semanas de entrenamiento concurrente sobre el metabolismo óseo de adultas mayores. La muestra fue compuesta por 51 mujeres adultas mayores, residentes en el municipio de Muriaé (MG), voluntarias, distribuidas en dos grupos, un grupo participó en entrenamiento concurrente (GTC=25), con una edad media de 69,44±6,82 años y un grupo control (GC=26) con una media de 68,30±6,34 años. Los parámetros biofísicos se determinaron por medio del peso corporal, la estatura e índice de masa corporal. Para la evaluación del metabolismo óseo, se realizó la recolección de la orina matinal en el pre y post-test, utilizando como reactivo el marcador bioquímico de deoxipiridinolina (DPD) que cuantifica la reabsorción ósea. Los resultados mostraron una reducción en la concentración de DPD en el GTC cuando se compararon los grupos (p = 0,007) y la mejora de las variables, peso corporal, IMC y DPD entre el GTC y el GC en el post-test (p = 0,000). Se percibe que el entrenamiento concurrente, para las mujeres adultas mayores fue eficiente en la mejoría de las condiciones de salud del metabolismo óseo.

Efeitos de 20 semanas de treinamento combinado na capacidade funcional de idosas / Effects of 20 weeks of combined training on the functional capacity of elderly / Efectos de 20 semanas de entrenamiento combinado en la capacidad funcional de mujeres ancianas

Resumo O estudo baseou-se em avaliar os efeitos de 20 semanas de treinamento combinado na capacidade funcional de idosas; 66 foram divididas por randomização em dois grupos, um grupo treinamento combinado (GTC, n = 33, com 69,12 ± 7 anos) e outro grupo controle (GC, n = 33, com 69,21 ± 6,60 anos). O período de intervenção da pesquisa ocorreu durante 20 semanas. A avaliação da CF foi feita pela Escala de Atividade da Vida Diária (AVD) proposta por Katz, associada à Escala das Atividades Instrumentais da Vida Diária (AIVD) proposta por Lawton. Para o treinamento de força muscular, usou-se carga máxima entre 70-85% de 1RM e no treinamento de resistência cardiovascular optou-se pelo uso de 70-89% da FC de reserva. Os resultados apresentam melhorais estatisticamente significativas na escala de CF de Lawton (Δ% = 21,04%, p = 0,007) e na escala de CF de Katz, (Δ% = 7,31%, p < 0,001) comparados com os do GC. Os resultados possibilitam concluir que a prática do treinamento combinado melhorou a CF de idosas.

Abstract The study was based on evaluating the effects of 20 weeks of concurrent training on the functional capacity of elderly. 66 elderly women were divided by randomization into two groups, a concurrent training group (CTG, n = 33, with 69,12 ± 7,00 years) and a control group (CG, n = 33, with 69,21 ± 6,60 years). The study intervention period occurred during 20 weeks. The evaluation of the CF was made by the Daily Life Activity Scale (ADL) proposed by Katz, associated with the Scale of Instrumental Activities of Daily Living (IADL) proposed by Lawton. For muscle strength training, maximum load was used between 70-85% of 1RM and in cardiovascular resistance training, 70-89% of reserve HR was used. The results show statistically significant improvement in CF Lawton scale (Δ% = 21,04%, p = 0,007) and CF scale Katz (Δ% = 7.31%, p < 0,001) compared to the control group. The results allow to conclude that the practice of concurrent training improved CF elderly.

Resumen El estudio se basó en la evaluación de los efectos de 20 semanas de entrenamiento combinado en la capacidad funcional (CF) de mujeres ancianas. Se dividió a 66 mujeres ancianas en dos grupos de forma aleatoria: un grupo de entrenamiento combinado (GEC, n = 33, con 69,12 ± 7,00 años) y un grupo control (GC, n = 33, con 69,21 ± 6,60 años). El período de la intervención fue 20 semanas. La evaluación de la CF se llevó a cabo con la Escala de Actividades de la Vida Diaria (AVD), propuesta por Katz, relacionada con la Escala de Actividades Instrumentales de la Vida Diaria (AIVD), propuesta por Lawton. Para el entrenamiento de la fuerza muscular se utilizó una carga máxima del 70-85% de 1RM y para el entrenamiento cardiovascular se optó por el uso del 70-89% de la reserva de la FC. Los resultados muestran una mejora estadísticamente considerable en la escala de la CF de Lawton (Δ% = 21,04%, p = 0,007) y la escala de la CF de Katz (Δ% = 7,31%, p < 0,001) en comparación con el grupo control. Los resultados permiten concluir que la práctica de entrenamiento combinado mejoró la CF de las mujeres ancianas.

Effect of three months of periodized hydrogymnastics exercise program on urinary concentration of deoxypyridinoline in older women

ABSTRACT Objective To determine the effect of three months of periodized hydrogymnastics exercise program on urinary concentration of deoxypyridinoline in older women. Subjects and methods Twenty-six subjects were randomly assigned in two, intervention group (n = 16) and control group (n = 10). The intervention group followed 12-week of periodized hydrogymnastics training program five times a week, 50 minutes of water exercise with work heart rate reserve of 40-50% (1-6thweek) increasing the load to 50-60% (7-12th week); the control group was not involved in exercise and remained sedentary. The urinary concentration of deoxypyridinoline was evaluated by high resolution liquid chromatography using the reactive immulite pyrilinks-D siemens medical solutions, pretest at the baseline and at the end post-test of the 12-week of water-exercise. As statistical analyses mixed 2 x 2 ANOVA was used, also percentage changes (Δ %) was calculated. Results The results did not show significant improvement (p < 0.05) comparing the interaction intergroup and the measurements of urinary concentration of deoxypyridinoline (p = 0.504), percentage change (Δ %) showed positive improvements in the experimental group of -13.7 (nM/mMcreatine) in comparison with -7.1 (nM/mMcreatine) from the control group. Conclusion The present study involves periodization increasing the load heart rate reserve of hydrogymnastics exercise in order to produce grater adaptations, but the results showed than is not possible to infer that hydrogymnastics is effective in increase urinary concentration of deoxypyridinoline in older women, will be appropriated in the future more studies to better clarify the possibilities of improvements between hydrogymnastics and urinary concentration of deoxypyridinoline. Arch Endocrinol Metab. 2015;59(6):523-7.