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溫度設定與毛巾包裹層數對熱敷包在體表升溫表現上的影響

Effect of Temperature Settings and Wrapped Layers of Towel on the Performance of Skin Temperature Rise During Hot Pack Application

摘要


Background and Purpose: Thermal conductivity of hot pack can be affected by temperature settings of hot water tanks and wrapped layers of towel. In c1inic, however, these parameters have not well been established. In this study, the effect of temperature setting and wrapped layers of towel on the performance of skin temperature rise was investigated. Methods: Twenty healthy young adults (5 men and 15 women, mean age 24.1±2.8 years) participated in this study .Each subject performed four heating trials, i.e., 72℃/8 layers, 72℃/4 layers, 66℃/8 layers and 66℃/4 layers, which were composed of heating hot packs to 66℃or 72℃ by storing in hot water tanks for overnight and then wrapping those by 4 or 8 layers of dry towel before use. Hot pack was applied randomly to the skin surface overlying the right wrist extensor muscle bellies. Bluetooth wireless physiological biofeedback was used to record the changes of skin temperature during three-minute preheating, 20-minute heating, and 30-minute post-heating. At least one rest day between trials was required. Results: All the heating trials can raise the skin temperatures to the therapeutic range of 40-45℃. Compared with 72℃/8 layers, application of 66℃/4 layers can significantly increase the maximum skin temperature by 0.8℃(95% CI,0.4℃to 1.2℃, p=0.001) , reduce the time to reach maximum skin temperature by 2.7 minutes (95% CI, -4.2 minutes to -1.2 minutes, p=0.001), and increase the duration of skin temperature within the therapeutic range by 1.9 minutes (95% CI , 1.4 minutes to 2.4 minutes, p<0.001)。 Regardless of the heating trials , the skin temperature were significantly higher at 5- and 30-minute post-heating than at preheating stage (mean difference: 0.7-1.4℃, p<0.001). Conclusion: Application of 66℃/4 layers can produce a more significant effect on the performance of skin temperature rise, as compared with that of 72℃/8 layers.

並列摘要


Background and Purpose: Thermal conductivity of hot pack can be affected by temperature settings of hot water tanks and wrapped layers of towel. In c1inic, however, these parameters have not well been established. In this study, the effect of temperature setting and wrapped layers of towel on the performance of skin temperature rise was investigated. Methods: Twenty healthy young adults (5 men and 15 women, mean age 24.1±2.8 years) participated in this study .Each subject performed four heating trials, i.e., 72℃/8 layers, 72℃/4 layers, 66℃/8 layers and 66℃/4 layers, which were composed of heating hot packs to 66℃or 72℃ by storing in hot water tanks for overnight and then wrapping those by 4 or 8 layers of dry towel before use. Hot pack was applied randomly to the skin surface overlying the right wrist extensor muscle bellies. Bluetooth wireless physiological biofeedback was used to record the changes of skin temperature during three-minute preheating, 20-minute heating, and 30-minute post-heating. At least one rest day between trials was required. Results: All the heating trials can raise the skin temperatures to the therapeutic range of 40-45℃. Compared with 72℃/8 layers, application of 66℃/4 layers can significantly increase the maximum skin temperature by 0.8℃(95% CI,0.4℃to 1.2℃, p=0.001) , reduce the time to reach maximum skin temperature by 2.7 minutes (95% CI, -4.2 minutes to -1.2 minutes, p=0.001), and increase the duration of skin temperature within the therapeutic range by 1.9 minutes (95% CI , 1.4 minutes to 2.4 minutes, p<0.001)。 Regardless of the heating trials , the skin temperature were significantly higher at 5- and 30-minute post-heating than at preheating stage (mean difference: 0.7-1.4℃, p<0.001). Conclusion: Application of 66℃/4 layers can produce a more significant effect on the performance of skin temperature rise, as compared with that of 72℃/8 layers.

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