Hunter Eric J, Ostrowski Jennifer, Donahue Matthew, Crowley Caitlyn, Herzog Valerie
Dept of PTOT, Idaho State University, Pocatello, ID.
J Sport Rehabil. 2016 Feb;25(1):70-6. doi: 10.1123/jsr.2014-0289. Epub 2015 Jan 22.
Many researchers have investigated the effectiveness of different cryotherapy agents at decreasing intramuscular tissue temperatures. However, no one has looked at the effectiveness of adding salt to an ice bag.
To compare the cooling effectiveness of different ice bags (wetted, salted cubed, and salted crushed) on cutaneous and intramuscular temperatures.
Repeated-measures counterbalanced design.
University research laboratory.
24 healthy participants (13 men, 11 women; age 22.46 ± 2.33 y, height 173.25 ± 9.78 cm, mass 74.51 ± 17.32 kg, subcutaneous thickness 0.63 ± 0.27 cm) with no lower-leg injuries, vascular diseases, sensitivity to cold, compromised circulation, or chronic use of NSAIDs.
Ice bags made of wetted ice (2000 mL ice and 300 mL water), salted cubed ice (intervention A; 2000 mL of cubed ice and 1/2 tablespoon of salt), and salted crushed ice (intervention B; 2000 mL of crushed ice and 1/2 tablespoon of salt) were applied to the posterior gastrocnemius for 30 min. Each participant received all conditions with at least 4 d between treatments.
Cutaneous and intramuscular (2 cm plus adipose thickness) temperatures of nondominant gastrocnemius were measured during a 10-min baseline period, a 30-min treatment period, and a 45-min rewarming period.
Differences from baseline were observed for all treatments. The wetted-ice and salted-cubed-ice bags produced significantly lower intramuscular temperatures than the salted-crushed-ice bag. Wetted-ice bags produced the greatest temperature change for cutaneous tissues.
Wetted- and salted-cubed-ice bags were equally effective at decreasing intramuscular temperature at 2 cm subadipose. Clinical practicality may favor salted-ice bags over wetted-ice bags.
许多研究人员调查了不同冷冻疗法药物降低肌肉组织温度的效果。然而，没有人研究过在冰袋中加盐的效果。
比较不同冰袋（湿冰袋、加盐冰块袋和加盐碎冰袋）对皮肤和肌肉温度的降温效果。
重复测量平衡设计。
大学研究实验室。
24名健康参与者（13名男性，11名女性；年龄22.46±2.33岁，身高173.25±9.78厘米，体重74.51±17.32千克，皮下厚度0.63±0.27厘米），无小腿损伤、血管疾病、对寒冷敏感、血液循环受损或长期使用非甾体抗炎药。
将由湿冰（2000毫升冰和300毫升水）制成的冰袋、加盐冰块袋（干预A；2000毫升冰块和半汤匙盐）和加盐碎冰袋（干预B；2000毫升碎冰和半汤匙盐）应用于腓肠肌后部30分钟。每位参与者接受所有条件的治疗，治疗间隔至少4天。
在10分钟的基线期、30分钟的治疗期和45分钟的复温期测量非优势侧腓肠肌的皮肤和肌肉（2厘米加脂肪厚度）温度。
所有治疗组与基线相比均有差异。湿冰袋和加盐冰块袋产生的肌肉温度显著低于加盐碎冰袋。湿冰袋使皮肤组织的温度变化最大。
湿冰袋和加盐冰块袋在降低皮下2厘米处肌肉温度方面同样有效。临床实用性上，加盐冰袋可能优于湿冰袋。
