Weiss L W, Clark F C, Howard D G
School of Health, Physical Education, Recreation, and Nursing, Georgia Southern College, Statesboro 30460-8073.
Phys Ther. 1988 Feb;68(2):208-13. doi: 10.1093/ptj/68.2.208.
The purpose of this study was to determine selected functional and structural effects of heavy-resistance training on the triceps surae muscles of men and women. We pretested 28 men and 28 women for triceps surae muscle isotonic strength and muscularity after five practice sessions that familiarized them with the study equipment. Triceps surae muscle isotonic strength was determined using a 1-repetition maximum seated heel raise. Muscularity involved the measurement of relaxed lower leg circumference and net circumference and ultrasonically determined triceps surae muscle thickness. Twenty-eight subjects (14 men, 14 women) were selected randomly after pretesting to participate in 24 sessions of standardized weight training primarily involving the triceps surae muscles, and the remaining subjects (14 men, 14 women) served as nontraining controls. After eight weeks of training, triceps surae muscle isotonic strength had increased significantly (p less than .001) for both men and women in the Treatment Group when compared with the Control Group. No other dependent variables changed significantly. We concluded that eight weeks of heavy-resistance training involving the triceps surae muscles elicits similar significant increases in isotonic muscle strength in both men and women without concurrent increases in muscularity.
本研究的目的是确定重负荷训练对男性和女性小腿三头肌的特定功能和结构影响。在让28名男性和28名女性进行了五次熟悉研究设备的练习后，我们对他们小腿三头肌的等张肌力和肌肉发达程度进行了预测试。使用一次重复最大坐姿提踵来测定小腿三头肌的等张肌力。肌肉发达程度涉及测量放松时小腿周长、净周长以及通过超声测定小腿三头肌厚度。预测试后，随机选择28名受试者（14名男性，14名女性）参加主要涉及小腿三头肌的24节标准化重量训练课程，其余受试者（14名男性，14名女性）作为非训练对照组。训练八周后，与对照组相比，治疗组的男性和女性小腿三头肌等张肌力均显著增加（p小于0.001）。其他因变量均无显著变化。我们得出结论，涉及小腿三头肌的八周重负荷训练会使男性和女性的等张肌力产生相似的显著增加，而肌肉发达程度不会同时增加。
