Resistance training predicts 6-yr body composition change in postmenopausal women.
Resistance training predicts 6-yr body composition change in postmenopausal women.
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DOI：
10.1249/mss.0b013e3181ca8115
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发表时间：
2010-07
影响因子：
4.1
通讯作者：
Lohman TG
中科院分区：
文献类型：
--
作者：
Bea JW;Cussler EC;Going SB;Blew RM;Metcalfe LL;Lohman TG
本研究的目的是检查参加渐进式阻力训练研究的绝经后妇女的运动频率（ExFreq）和体积（军事按压（MP）和深蹲（SQ）举起的总重量）与身体组成变化的关系。先前久坐不动的女性（n=122，年龄56.3±4.3岁）随访6年。在6岁时，有妇女被随机分配到基线阻力训练（n=65）对照组，在1岁时被允许交叉到锻炼计划（n=32），和25个真正的对照组。锻炼者和交叉训练者被指导进行8项核心练习，每组重复8次，每次最多重复70-80%，每周3次，再加上负重、拉伸和平衡。在基线和每年使用人体测量和双能x线吸收测量法测量体重和脂肪。6年平均体重和体脂变化分别为0.83±5.39 kg和0.64±4.95 kg。在多元线性回归中，ExFreq、MP和SQ与体重（标准化β系数(SBC)= - 0.22至- 0.28,p<0.01）、脂肪（SBC= - 0.25至- 0.33,p<0.01）和躯干脂肪（SBC= - 0.20至- 0.31,p<0.03）的变化呈显著负相关，在调整年龄、激素治疗年数、瘦软组织变化、基线体成分和基线习惯性运动后。最低分位数的SQ（相当于2.5%的出勤率）在6年内表现出体重、脂肪和躯干脂肪的显著增加（p<0.004），而最高分位数的SQ（相当于64%的出勤率）能够保持其体重、总脂肪和区域脂肪。我们的结论是，阻力训练是一种可行的长期方法，以防止体重增加和有害的身体成分的变化，在绝经后妇女。
The aim of this study was to examine the association of exercise frequency (ExFreq) and volume (total weight lifted by military press (MP) and squats (SQ)) with change in body composition among postmenopausal women participating in a progressive resistance training study. Previously sedentary women (n=122, age 56.3±4.3 years) were followed for 6yrs. At 6yrs, there were women who had been randomly assigned to resistance training at baseline (n=65) controls that were permitted to cross-over to the exercise program at 1yr (n=32), and 25 true controls. Exercisers and crossovers directed to perform 8 core exercises for two sets of eight repetitions at 70–80% of one repetition maximum, three times weekly, plus progressive weight bearing, stretching, and balance. Body weight and fat were measured at baseline and annually using anthropometry and dual-energy x-ray absorptiometry. Average change in body weight and total body fat were 0.83±5.39 kg and 0.64±4.95 kg at six years, respectively. In multiple linear regression, ExFreq, MP, and SQ were significantly, inversely associated with change in body weight (standardized beta coefficient (SBC)=−0.22 to −0.28, p<0.01), fat (SBC=−0.25 to −0.33, p<0.01) and trunk fat (SBC=−0.20 to −0.31, p<0.03) after adjusting for age, years on hormone therapy, change in lean soft tissue, baseline body composition, and baseline habitual exercise. The lowest tertile of SQ (equivalent to 2.5% attendance) demonstrated significant gain in weight, fat, and trunk fat over 6 years (p<0.004), whereas the highest tertile SQ (equivalent to 64% attendance) was able to maintain their weight, total and regional fat. We conclude that resistance training is a viable long-term method to prevent weight gain and deleterious changes in body composition in postmenopausal women.