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The Effect of Resistance Training with Outdoor Fitness Equipment on the Body Composition, Physical Fitness, and Physical Health of Middle-Aged and Older Adults: A Randomized Controlled Trial.

Pablo Jorge Marcos-PardoAlejandro Espeso-GarcíaRaquel Vaquero-CristóbalTomás Abelleira-LamelaNoelia González-Gálvez
Published in: Healthcare (Basel, Switzerland) (2024)
This study examined the effect of outdoor-fitness-equipment-based resistance training on the health parameters of middle-aged and older adults, as well as analyzing the effect of age on the results found. A total of 149 volunteers were randomly assigned to the training (TG) and control (CG) groups. The TG performed two weekly sessions of resistance training for 8 weeks using outdoor fitness equipment, while the CG continued with their regular daily activities. Body composition was measured using DXA, and the maximal isometric voluntary contraction in knee extension, elbow flexion, and hand grip were assessed, along with the 4 m walk test, the Timed Up and Go Test, and the Short Form 36 Health Survey Questionnaire. The TG showed a significant increase in the lean mass index ( p = 0.002) and maximal isometric voluntary contraction in both legs ( p < 0.001) and arms ( p < 0.001), as well as in physical functioning ( p < 0.001) and the role physical dimension ( p = 0.006) of the Short Form 36 Health Survey Questionnaire, compared to the CG, which showed a decrease in all these variables. In addition, the TG showed a greater decrease in fat mass ( p < 0.001), fat mass index ( p = 0.003), and the Timed Up and Go Test ( p < 0.001) than the CG. Age conditioned the evolution of most of the variables analyzed ( p < 0.05). In conclusion, resistance training with outdoor fitness equipment may be useful for improving the health of middle-aged and older adults, although age is a factor that could influence the adaptations found.
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