San Francisco State University, San Francisco, CA.
J Athl Train. 2000 Oct;35(4):422-6.
To investigate the effect of icing the arm and shoulder between weight-pulling sets on work, velocity, and power.
I used a 1 x 2 factorial, random, counterbalanced design in which each participant pulled 75 per thousand of his 1-repetition maximum on 2 separate days. The individuals pulled the weight 22 times for each set as fast as possible, then either iced (cryotherapy) or placed towels over their arms and shoulders for 3 minutes, and then rested 4.5 minutes at room temperature. The sets continued until the participants could not complete 22 pulls without stopping.
Ten male members of a private athletic club, who weight lift on a regular basis, volunteered to participate in the study.
Work was determined by the number of arm-pull sets completed before fatigue, velocity was measured by the time to complete each set, and power was determined by dividing work by velocity. Velocity and power were analyzed in 3 ways: first to fourth sets (88 pulls), matched sets (167.2 pulls), and all sets (191.4 cryotherapy and 167.2 towel pulls), using analysis of covariance with the base set as the covariate.
Cryotherapy between sets resulted in a significantly greater number of total joules and arm pulls when compared with the towel treatment. Velocity was significantly faster for the first to fourth sets, matched sets, and all sets when subjects received intermittent cryotherapy. Power also was significantly higher for the first to fourth sets and matched sets. The all-sets comparison consisted of 14.5 per thousand more cryotherapy arm pulls.
Interval cryotherapy between weight-pulling sets is associated with increased work, velocity, and power.
研究在重量拉组之间冰敷手臂和肩膀对工作、速度和力量的影响。
我使用了 1x2 因子随机平衡设计，每个参与者在 2 天内以 1 次重复最大重量的 75%进行了 75 次拉动。个体以最快的速度尽可能多地拉动重量 22 次，然后对其手臂和肩膀冰敷（冷冻疗法）或用毛巾覆盖 3 分钟，然后在室温下休息 4.5 分钟。组继续进行，直到参与者在不停止的情况下无法完成 22 次拉动。
10 名定期举重的私人运动俱乐部男性成员自愿参加研究。
工作由疲劳前完成的手臂拉动组数决定，速度通过完成每组的时间来衡量，力量通过将工作除以速度来确定。速度和力量通过以下 3 种方式进行分析：前四组（88 次拉动）、匹配组（167.2 次拉动）和所有组（191.4 次冷冻疗法和 167.2 次毛巾拉动），使用协方差分析，以基础组为协变量。
与毛巾处理相比，组间冰敷导致总焦耳和手臂拉动次数显著增加。当受试者接受间歇性冷冻疗法时，前四组、匹配组和所有组的速度都显著加快。前四组和匹配组的功率也显著升高。所有组的比较中，冷冻疗法手臂拉动次数多了 14.5%。
在重量拉组之间进行间歇冷冻疗法与增加工作、速度和力量有关。
