Paddon-Jones D J, Quigley B M
Department of Human Movement Studies, The University of Queensland, Brisbane, Australia.
Int J Sports Med. 1997 Nov;18(8):588-93. doi: 10.1055/s-2007-972686.
The purpose of this study was to determine whether a post-exercise cryotherapy protocol could facilitate recovery of elbow flexor strength and reduce the severity of delayed onset muscle soreness following eccentric exercise. Eight resistance-trained males (23 +/- 3 yr) performed 64 eccentric elbow flexions with each arm. One arm was subjected to five, 20 minute immersions in a 5 +/- 1 degree C ice-water bath interspersed by 60 minute rest periods. The non-immersed arm served as the control. A main effect for time was observed for all dependent variables (p < 0.05). Isometric torque (mean SE) decreased from a pre-exercise value of 87.9 +/- 4.5 Nm to 65.2 +/- 4.5 Nm immediately post-exercise. Isokinetic torque at 60 and 300 degrees x s(-1) decreased from 71.0 +/- 3.5 NM and 48.4 +/- 2.8 Nm to 55.8 +/- 3.3 Nm and 39.8 +/- 3.1 Nm, respectively. All torque measures returned to pre-test levels by 72 h. Muscle soreness peaked 48 h post-exercise and was evident until 120 h. Limb volume increased by 200 +/- 18 ml immediately post-exercise (p < 0.05) but was not significantly elevated thereafter. No significant difference between the immersed and control arms were observed for any variable. The result suggest that the use of cryotherapy immediately following damaging eccentric exercise may not provide the same therapeutic benefits commonly attributed to cryotherapy following traumatic muscle injury.
本研究的目的是确定运动后冷冻疗法方案是否有助于恢复肘屈肌力量，并减轻离心运动后延迟性肌肉酸痛的严重程度。八名经过抗阻训练的男性（23±3岁）每只手臂进行64次离心肘屈曲。一只手臂在5±1℃的冰水浴中浸泡五次，每次20分钟，中间间隔60分钟的休息时间。未浸泡的手臂作为对照。所有因变量均观察到时间的主效应（p<0.05）。等长扭矩（平均值±标准误）从运动前的87.9±4.5 Nm立即降至运动后的65.2±4.5 Nm。60和300度/s时的等速扭矩分别从71.0±3.5 Nm和48.4±2.8 Nm降至55.8±3.3 Nm和39.8±3.1 Nm。所有扭矩测量值在72小时时恢复到测试前水平。肌肉酸痛在运动后48小时达到峰值，并一直持续到120小时。运动后肢体体积立即增加200±18 ml（p<0.05），但此后没有显著升高。在任何变量上，浸泡组和对照组之间均未观察到显著差异。结果表明，在进行破坏性离心运动后立即使用冷冻疗法可能无法提供通常归因于创伤性肌肉损伤后冷冻疗法的相同治疗益处。
