Ostrowski Jennifer, Purchio Angelina, Beck Maria, Leisinger JoLynn
J Sport Rehabil. 2019 Feb 1;28(2):120-125. doi: 10.1123/jsr.2017-0173. Epub 2018 Oct 15.
Rest, ice, compression, and elevation are commonly recommended immediately after injury. Traditionally, ice bag (IB) with elastic wrap compression has been utilized; however, recently intermittent cryocompression units are being used. Limited research has evaluated tissue temperature decreases with intermittent cryocompression units.
Evaluate magnitude of muscle and skin cooling.
Repeated-measures counterbalanced study.
University research laboratory.
Twelve healthy college-aged participants (4 males and 8 females; age = 23.08 [1.93] y; height = 171.66 [9.47] cm; mass = 73.67 [13.46] kg; subcutaneous thickness = 0.90 [0.35] cm) without compromised circulation or injury.
INTERVENTION(S): Salted IB, GameReady (GR), and PowerPlay-ice bag (PP-ice) were applied to the posterior aspect of the nondominant calf for 30 minutes; participants underwent each treatment in counterbalanced order.
MAIN OUTCOME MEASURE(S): Muscle temperature measured via 21-gauge catheter thermocouple; skin temperature measured via a surface thermocouple. Temperatures were recorded at baseline and during a 30-minute treatment. Correlations were evaluated between muscle and skin temperatures.
Nonsignificant treatment × time interaction and nonsignificant main effect of treatment for intramuscular cooling. Mean Decrease From Baseline: IB, 6.4°C (±2.8); GR, 5.4°C (±1.1); PP-ice, 4.8°C (±2.8). Nonsignificant treatment × time interaction for skin cooling (F = 1.440, P = .65, , and observed β = 0.773), but significant main effect for treatment (F = 5.279, P = .03, , and observed β = 1.00). Mean Decrease From Baseline: IB, 17.0°C; GR, 16.4°C; PP-ice, 14.6°C. No significant correlation between intramuscular and skin temperatures in any condition at any time point. No significant correlation between adipose tissue thickness and maximum temperature decrease with any modality.
Salted IB with elastic wrap compression, GR, and PP-ice produced equivalent intramuscular temperature decreases during the treatment period.
受伤后通常建议立即进行休息、冰敷、加压包扎和抬高。传统上，一直使用带有弹性绷带加压的冰袋（IB）；然而，最近间歇性低温压缩装置也开始被使用。关于间歇性低温压缩装置对组织温度降低的研究有限。
评估肌肉和皮肤的冷却程度。
重复测量平衡研究。
大学研究实验室。
12名健康的大学生（4名男性和8名女性；年龄 = 23.08 [1.93]岁；身高 = 171.66 [9.47]厘米；体重 = 73.67 [13.46]千克；皮下厚度 = 0.90 [0.35]厘米），循环系统未受损且无损伤。
将加盐冰袋（IB）、GameReady（GR）和PowerPlay - 冰袋（PP - ice）应用于非优势小腿后侧30分钟；参与者按平衡顺序接受每种治疗。
通过21号导管热电偶测量肌肉温度；通过表面热电偶测量皮肤温度。在基线和30分钟治疗期间记录温度。评估肌肉温度与皮肤温度之间的相关性。
治疗×时间交互作用不显著，治疗对肌肉内冷却的主效应不显著。相对于基线的平均降低值：IB为6.4°C（±2.8）；GR为5.4°C（±1.1）；PP - ice为4.8°C（±2.8）。皮肤冷却的治疗×时间交互作用不显著（F = 1.440，P = 0.65， ，观察到的β = 0.773），但治疗的主效应显著（F = 5.279，P = 0.03， ，观察到的β = 1.00）。相对于基线的平均降低值：IB为17.0°C；GR为16.4°C；PP - ice为14.6°C。在任何时间点的任何条件下，肌肉内温度与皮肤温度之间均无显著相关性。脂肪组织厚度与任何方式下的最大温度降低之间均无显著相关性。
在治疗期间，加盐冰袋（IB）结合弹性绷带加压、GR和PP - ice导致的肌肉内温度降低相当。
