Department of Obstetrics and Gynecology, National University of Singapore, National University Hospital, Kent Ridge, Singapore 119074, Singapore.
Aging Male. 2010 Dec;13(4):265-74. doi: 10.3109/13685538.2010.489623.
The present study sought to examine the association between physical exercise as a lifestyle habit with anthropometric parameters and body composition and aging in men.
Intensity of exercise was scored as metabolic equivalent-min/week (MET-min/week) from data of the questionnaire, while anthropometric parameters and body composition were carried out by standard measuring instruments and dual-energy X-ray absorptiometry scanner, respectively.
Age was associated with decreases in bodyweight, height, total lean mass and bone mass, but an increase in fat mass. The negative association of lean mass with age was predominantly due to the negative association of lean masses in the legs and arm, while the positive association of fat mass with age was primarily due to the positive association of fat masses in the trunk and abdomen. Exercise of intensity greater than 1000 MET-min/week was significantly associated with higher lean and bone masses and lower fat mass. The increase in lean mass was predominantly in the legs, while the decreases in fat mass were in the trunk and abdomen.
The study showed that the high intensity of physical exercise, equivalent to greater than 1000 MET-min/week, is required to effect beneficial changes in the body composition. Hence, results from the study support the importance of promoting a lifestyle habit of exercise of sufficient intensity in order to mitigate the increase risks of sarcopenia and obesity and their attendant ill effects on health in men as they age.
本研究旨在探讨男性的生活方式习惯，即体育锻炼与人体测量参数和身体成分以及衰老之间的关系。
运动强度通过问卷数据评分，评分单位为代谢当量-分钟/周（MET-min/week）；人体测量参数和身体成分分别采用标准测量仪器和双能 X 射线吸收仪进行检测。
年龄与体重、身高、总瘦体重和骨量的下降有关，但与脂肪量的增加有关。瘦体重与年龄的负相关主要是由于腿部和手臂的瘦体重与年龄呈负相关，而脂肪量与年龄的正相关主要是由于躯干和腹部的脂肪量与年龄呈正相关。强度大于 1000MET-min/week 的运动与较高的瘦体重和骨量以及较低的脂肪量显著相关。瘦体重的增加主要发生在腿部，而脂肪量的减少则发生在躯干和腹部。
该研究表明，高强度的体育锻炼（相当于大于 1000MET-min/week）可对身体成分产生有益的变化。因此，研究结果支持了促进足够强度的锻炼生活方式习惯的重要性，以减轻男性随着年龄增长出现的肌肉减少症和肥胖症及其对健康的不利影响的风险。
