Effect of Exercise Type During Intentional Weight Loss on Body Composition in Older Adults with Obesity.

Effect of Exercise Type During Intentional Weight Loss on Body Composition in Older Adults with Obesity.
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DOI:
10.1002/oby.21977
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发表时间:
2017-11
期刊:
Obesity (Silver Spring, Md.)
影响因子:
--
通讯作者:
Marsh AP
Marsh AP
中科院分区:
其他
文献类型:
--
作者:
Beavers KM;Ambrosius WT;Rejeski WJ;Burdette JH;Walkup MP;Sheedy JL;Nesbit BA;Gaukstern JE;Nicklas BJ;Marsh AP

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研究减肥期间运动方式对身体成分的长期影响以及身体成分与身体功能变化之间的关联。 249 名老年人(66.9±4.7 岁,71% 女性,32% 非裔美国人,BMI:34.4±3.7 kg/m2)被随机分为减肥组(WL;n=82)、WL 加有氧训练(WL+AT;n=86)或 WL 加阻力训练(WL+RT;n=81),为期 18 个月。在基线、6 个月和 18 个月时测量了 DXA 获得的身体成分、400 米步行时间和膝关节伸肌力量。当WL与运动相结合时,总体质量损失增加(WL:-5.7±0.7 kg,WL+AT:-8.5±0.7 kg,WL+RT:-8.7±0.7 kg;p<0.01)。 WL+AT(-6.8±0.6 kg,-16.4%)和WL+RT(-7.8±0.5 kg,-19.0%)的全身脂肪质量损失显着大于WL(-4.8±0.6 kg,-10.9%);两者 p<0.01。与WL+RT(-0.8±0.3 kg,-1.5%)或WL(-1.0±0.3 kg;-2.0%)相比,WL+AT(-1.6±0.3 kg,-3.1%)的瘦体重损失最大;两者 p≤0.02)。 400 米步行时间的变化与脂肪量的变化相关(β/SD=+6.1 秒;p<0.01),而膝伸肌力量的变化与瘦体重的变化相关(β/SD=+1.6 Nm;p<0.01)。 WL+RT 比 WL+AT 损失的瘦体重更少;与单独的 WL 相比,WL 加运动可以减少更多的脂肪量。
To examine the long-term effects of exercise modality during weight loss on body composition and associations between body composition and physical function changes. 249 older adults (66.9±4.7 years, 71% women, 32% African American, BMI: 34.4±3.7 kg/m2) were randomized to weight loss (WL; n=82), WL plus aerobic training (WL+AT; n=86), or WL plus resistance training (WL+RT; n=81) for 18-months. DXA-acquired body composition, 400-m walk time, and knee extensor strength were measured at baseline, 6-, and 18-months. Total body mass loss was enhanced when WL was combined with exercise (WL: −5.7±0.7 kg, WL+AT: −8.5±0.7 kg, WL+RT: −8.7±0.7 kg; p<0.01). Total body fat mass loss was significantly greater in WL+AT (−6.8±0.6 kg, −16.4%) and WL+RT (−7.8±0.5 kg, −19.0%) than WL (−4.8±0.6 kg, −10.9%); both p<0.01. Lean mass loss was greatest in WL+AT (−1.6±0.3 kg, −3.1%) compared to WL+RT (−0.8±0.3 kg, −1.5%) or WL (−1.0±0.3 kg; −2.0%); both p≤0.02). Change in 400-m walk time was associated with change in fat mass (β/SD=+6.1 sec; p<0.01), while change in knee extensor strength was associated with change in lean mass (β/SD=+1.6 Nm; p<0.01). WL+RT results in less lean mass lost than WL+AT; WL plus exercise yields greater fat mass loss than WL alone.
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