J Orthop Sports Phys Ther. 1991;13(1):33-9. doi: 10.2519/jospt.1991.13.1.33.
Ms. Ryan and Ms. Magidow completed this research project in partial fulfillment of the requirement for the degree of Masters of Science in the Department of Physical Therapy in the Graduate School, Duke University, 1989 This study examined velocity-specific and mode-specific effects of eccentric isokinetic training of the hamstrings. Female volunteers aged 21 to 40 were assigned to an exercise group (n = 17) or nonexercise group (n = 17). The average force of three concentric and eccentric hamstring contractions was evaluated pre- and post-training at 120 degrees /sec +/- 60 degrees /sec. Subjects trained three times a week for six weeks with 15 maximal eccentric isokinetic contractions at 120 degrees /sec. The ANOVA procedure and T-tests were used to determine the effects of training. A general linear model (GLM) for repeated measures determined the interaction effect between speed and mode. Results showed that the exercise group increased significantly (p < 0.0083) in eccentric force at all tested speeds and increased significantly (p < 0.0083) in concentric force at 120 degrees /sec and 180 degrees /sec. The GLM results showed no interaction effect between speed and mode. The study concluded that eccentric isokinetic training of the hamstrings at 120 degrees /sec is not speed-specific at 120 degrees /sec +/- 60 degrees /sec and is not mode-specific at 120 degrees /sec and 180 degrees /sec. J Orthop Sports Phys Ther 1991;13(1):33-39.
瑞安女士和马吉多女士于 1989 年在杜克大学研究生院完成了物理治疗科学硕士学位的部分要求，完成了本项研究，旨在检验腘绳肌离心等速训练的速度特异性和模式特异性效应。年龄在 21 岁至 40 岁之间的女性志愿者被分配到运动组（n = 17）或非运动组（n = 17）。在训练前和训练后，以 120 度/秒±60 度/秒的速度，评估了三次向心和离心腘绳肌收缩的平均力。受试者每周进行三次训练，共六周，以 120 度/秒的速度进行 15 次最大离心等速收缩。采用方差分析程序和 T 检验来确定训练的效果。重复测量的一般线性模型（GLM）确定了速度和模式之间的相互作用效应。结果表明，运动组在所有测试速度下的离心力显著增加（p<0.0083），在 120 度/秒和 180 度/秒的向心力也显著增加（p<0.0083）。GLM 结果表明，速度和模式之间没有相互作用效应。研究得出结论，在 120 度/秒±60 度/秒的范围内，120 度/秒的腘绳肌离心等速训练不是速度特异性的，在 120 度/秒和 180 度/秒的范围内，也不是模式特异性的。《美国矫形运动物理治疗杂志》1991 年；13（1）：33-39。
