Goh Victor H H, Hart William G
Department of Medical Education, Faculty of Health Sciences, Curtin University , Bentley, Western Australia , Australia.
Aging Male. 2014 Sep;17(3):131-5. doi: 10.3109/13685538.2014.925441. Epub 2014 Jun 18.
We evaluated how the intensity of physical exercise as a lifestyle habit is associated with age, body composition and handgrip strength.
Total body composition was analyzed using DEXA. Exercise scores were derived from an administered questionnaire and the scoring was calculated using the Metabolic Equivalent of Task (MET). Handgrip strength was measured using a dynamometer.
Age, independent of exercise intensity, was associated with declining lean mass, and handgrip strength and with increasing total body fat. A regular physical exercise regime of intensity greater than 1230 MET-min/week was associated with higher total lean mass and lean mass in the limbs, and handgrip strength and lower fat mass in the limbs.
We have shown that age was associated with lower lean mass especially in the limbs and handgrip strength and higher total fat mass. Regular physical exercise as a lifestyle habit of any type and of sufficient intensity could help improve muscle strength in the limbs.
我们评估了作为一种生活习惯的体育锻炼强度如何与年龄、身体成分和握力相关联。
使用双能X线吸收法（DEXA）分析全身成分。运动得分来自一份调查问卷，并使用代谢当量任务（MET）进行计算。使用握力计测量握力。
与运动强度无关，年龄与瘦体重下降、握力以及全身脂肪增加相关。每周运动强度大于1230 MET-分钟的规律体育锻炼与更高的总瘦体重、四肢瘦体重、握力以及更低的四肢脂肪量相关。
我们已经表明，年龄与较低的瘦体重相关，尤其是四肢的瘦体重和握力，以及较高的总脂肪量。作为任何类型且强度足够的生活习惯的规律体育锻炼有助于提高四肢的肌肉力量。
