Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Effects of Physical Activity Program on Body Composition, Physical Performance, and Neuromuscular Strategies During Walking in Older Adults With Sarcopenic Obesity: Randomized Controlled Trial

Version 1 : Received: 9 June 2023 / Approved: 12 June 2023 / Online: 12 June 2023 (03:02:19 CEST)

A peer-reviewed article of this Preprint also exists.

Ferhi, H.; Gaied Chortane, S.; Durand, S.; Beaune, B.; Boyas, S.; Maktouf, W. Effects of Physical Activity Program on Body Composition, Physical Performance, and Neuromuscular Strategies during Walking in Older Adults with Sarcopenic Obesity: Randomized Controlled Trial. Healthcare 2023, 11, 2294. Ferhi, H.; Gaied Chortane, S.; Durand, S.; Beaune, B.; Boyas, S.; Maktouf, W. Effects of Physical Activity Program on Body Composition, Physical Performance, and Neuromuscular Strategies during Walking in Older Adults with Sarcopenic Obesity: Randomized Controlled Trial. Healthcare 2023, 11, 2294.

Abstract

The potential impact of a specific physical activity program on biomechanical gait parameters and neuromuscular strategies around the ankle joint in older adults with sarcopenic obesity (SO) remains largely unexplored. The objective of this study was to investigate the effectiveness of a 24-week Posture, Strengthening, and Motricity (PSM) program in improving neuromuscular strategies and biomechanical gait parameters in older adults with SO. 40 Participants were randomly assigned to either the trained group (TG) and the control group (CG). Only the TG received the PSM program. Standardized evaluations were performed before and after the intervention, including walking tests on an instrumented gait analysis treadmill to evaluate biomechanical gait parameters and EMG activity of ankle muscles. After the PSM program, TG exhibited an increase in comfortable walking speed (+80%, p<0.001) and step length (+38%, p<0.05). Moreover, TG demonstrated a reduction in CoP velocity (-26%, p<0.01). These gait modifications were associated with a decreased muscle activity during the different gait phases (p<0.05). The PSM program effectively improved gait, and neuromuscular capacities in older adults with SO. Notably, Results sheds light on the remarkable trainability of neuromuscular capacities in older adults with SO, despite the adverse effects of aging and obesity.

Keywords

age; obesity; gait; physical activity; neuromuscular system; sarcopenia

Subject

Public Health and Healthcare, Physical Therapy, Sports Therapy and Rehabilitation

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