AI Article Synopsis
- Exercise training combined with weight loss significantly enhances lower extremity physical function (LEPF) in older overweight women compared to weight loss alone.
- In a study involving 44 participants over six months, those who engaged in exercise and weight loss showed greater improvements in most functional tasks and specific measures of rate of torque development (RTD) than those who only lost weight.
- However, improvements in RTD did not correlate with changes in LEPF, indicating that while exercise boosts RTD, it doesn't necessarily translate to better functional performance in daily tasks for older women.
Article Abstract
Exercise training (EX) and weight loss (WL) improve lower extremity physical function (LEPF) in older overweight women; however, effects on rate of torque development (RTD) are unknown. This study aimed to determine the effects of WL + EX or WL alone on RTD, and relatedly LEPF, in overweight older women. Leg strength was assessed using isokinetic dynamometry, and RTD was calculated (RTD200 = RTD at 200 ms, RTDPeak = peak RTD, T2P = time to 1st peak). LEPF was determined via clinical functional tasks. Women (n = 44, 69.1 ± 3.6 years, 30.6 ± 4.3 kg/m2) completed a 6-month trial in EX + WL or WL groups with similar weight loss (-9.8 ± 4.2%, p > .95). EX + WL had greater improvements in (a) most LEPF tasks (p < .001) and (b) RTD200, compared with WL (36% vs. -16%, p = .031); no other RTD parameters differed. Changes in RTD parameters and LEPF were not related (all p > .05). RTD is responsive to EX but is not associated with LEPF in older women.
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| http://dx.doi.org/10.1123/japa.2022-0032 | DOI Listing |
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