Bruce S A, Newton D, Woledge R C
Department of Medicine for the Elderly, St Helen's Hospital, Hastings, London.
Q J Exp Physiol. 1989 May;74(3):359-62. doi: 10.1113/expphysiol.1989.sp003278.
Muscle weakness accompanies ageing but its causes are still uncertain. We report maximum voluntary force measurements of adductor pollicis muscle, normalized for cross-sectional area, in twenty-three elderly subjects. Normalized force was lower in the elderly compared with a group of fifty-five young adult subjects by 27 +/- 4% (S.E.M.). This shows that atrophy alone is not the cause of the weakness of old age.
肌肉无力伴随衰老出现，但其原因仍不明确。我们报告了23名老年受试者拇内收肌最大随意肌力的测量结果，并根据横截面积进行了标准化处理。与55名年轻成人受试者相比，老年人的标准化肌力降低了27±4%（标准误）。这表明单纯萎缩并非老年肌肉无力的原因。
