SWEATING ON PAWS AND PALMS - WHAT IS ITS FUNCTION
SWEATING ON PAWS AND PALMS - WHAT IS ITS FUNCTION
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DOI：
10.1152/ajplegacy.1975.229.5.1400
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发表时间：
1975-01-01
影响因子：
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通讯作者：
HEGLUND, NC
中科院分区：
文献类型：
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作者：
ADELMAN, S;TAYLOR, CR;HEGLUND, NC
人的手掌和脚底出汗是对压力和运动的反应，但不是对热的反应。对于这种类型的出汗，已经提出了几种功能：增加皮肤和基底之间的摩擦;增加皮肤的韧性;以及增加触觉灵敏度。本研究采用比较的方法来评估脚垫出汗增加摩擦的作用，利用各种哺乳动物，其脚垫上具有汗腺（大鼠，tenrec，蹄兔和狗）。我们发现所有这些动物在奔跑时都会在爪子上出汗。用硫酸阿托品阻止这种出汗，可以显著降低爪子和倾斜跑步机踏板之间的静摩擦系数。相似剂量的硫酸阿托品对兔子和爪子上没有汗腺的动物的静摩擦系数没有影响。我们的结论是，这种类型的出汗的一个重要功能是帮助防止在跑步或攀爬过程中的爪子和sthe基板之间的滑动，我们假设，在应激反应中观察到的出汗可能在准备动物逃离应激情况中发挥重要作用。
Man sweats on his palms and the soles of his feet in response to stress and exercise, but not in response to heat. Several functions have been proposed for this type of sweating: increasing friction between skin and substrate; increasing the toughness of the skin; and increasing tactile sensitivity. This study uses a comparative approach to evaluate the role of footpad sweating on increasing friction, utilizing a variety of mammals which possess sweat glands on their footpads (rat, tenrec, hyrax, and dog). We found that all of these animals sweat on their paws while running. Blocking this sweating with atropine sulfate dramatically decreased the coefficient of static friction between the paw and the tread of an inclined treadmill. A similar dose of atropine sulfate had no effect on the coefficient of static friction in a rabbit, and animal that possesses no sweat glands on its paws. We conclude that an important function of this type of sweating is to help prevent slipping between the paw and sthe substrate during running or climbing, and we postulate that the sweating observed in response to stress may play an important role in preparing an animal for fleeing from stressful situations.