Tsunoda N, O'Hagan F, Sale D G, MacDougall J D
Department of Physical Education, McMaster University, Hamilton, Ontario, Canada.
Eur J Appl Physiol Occup Physiol. 1993;66(3):235-9. doi: 10.1007/BF00235099.
The influence of elbow joint angle on voluntary isometric elbow flexion strength was assessed in 15 young women (F), 18 young men (M) and 11 male bodybuilders (BB). Measurements were made at elbow joint angles of 1.31, 1.57, 1.83, 2.09, 2.36, 2.62 and 2.88 rad (3.14 rad = 180 degrees = full extension). The peak voluntary strength [mean (SE), N.m] in M [69.5 (4.3)] and BB [93.3 (4.8)] occurred at 2.09 rad (120 degrees), but occurred at 1.57 rad (90 degrees) in F [35.4 (2.4)]. Peak torque at 1.31 rad was 20% and 25% lower than at 2.09 rad in M and BB, respectively, but did not differ between these two angles in F. The larger elbow flexor muscle and fibre size in M and BB may have been responsible for their impaired torque production at joint angles corresponding to the shortest muscle lengths.
在15名年轻女性（F）、18名年轻男性（M）和11名男性健美运动员（BB）中评估了肘关节角度对自愿性等长肘关节屈曲力量的影响。测量在肘关节角度为1.31、1.57、1.83、2.09、2.36、2.62和2.88弧度（3.14弧度 = 180度 = 完全伸展）时进行。男性[69.5（4.3）]和健美运动员[93.3（4.8）]的最大自愿力量[平均值（标准误），牛顿·米]在2.09弧度（120度）时出现，但女性[35.4（2.4）]在1.57弧度（90度）时出现。在1.31弧度时的峰值扭矩在男性和健美运动员中分别比在2.09弧度时低20%和25%，但在女性中这两个角度之间没有差异。男性和健美运动员中较大的肘关节屈肌肌肉和纤维尺寸可能是导致他们在对应最短肌肉长度的关节角度下扭矩产生受损的原因。
