Möller M, Ekstrand J, Oberg B, Gillquist J
Arch Phys Med Rehabil. 1985 Mar;66(3):171-3.
The duration of the effect of contract-relax stretching on range of motion (ROM) in the lower extremities was measured on eight male volunteers. The stretching procedure was performed as one isometric contraction, followed by relaxation and then a passive extension of the muscle being stretched. The treated muscle groups were the adductors, hamstrings, rectus femoris, iliopsoas, gastrocnemius, and soleus. The total stretching time was 15min. Six ROMs were tested 0, 30, 60, and 90min after the stretching procedure. There was a significant increase in hip abduction (+17% +/- 3), knee flexion (+4% +/- 1), hip flexion (+4% +/- 2), ankle dorsiflexion with knee flexed (+18% +/- 7), and ankle dorsiflexion with knee straight (+16% +/- 5). The increase remained for 90min for all ROMs except for ankle dorsiflexion with the knee straight.
在八名男性志愿者身上测量了收缩 - 放松拉伸对下肢活动范围（ROM）的影响持续时间。拉伸过程包括一次等长收缩，随后放松，然后对被拉伸的肌肉进行被动伸展。接受治疗的肌肉群包括内收肌、腘绳肌、股直肌、髂腰肌、腓肠肌和比目鱼肌。总拉伸时间为15分钟。在拉伸过程结束后的0、30、60和90分钟测试了六个活动范围。髋关节外展（增加17%±3）、膝关节屈曲（增加4%±1）、髋关节屈曲（增加4%±2）、屈膝时踝关节背屈（增加18%±7）以及伸膝时踝关节背屈（增加16%±5）均有显著增加。除伸膝时踝关节背屈外，所有活动范围增加的效果均持续90分钟。
