TY - JOUR
T1 - Muscle mechanoreceptor modulation of sweat rate during recovery from moderate exercise
AU - Shibasaki, Manabu
AU - Sakai, Mieko
AU - Oda, Mayumi
AU - Crandall, Craig G.
PY - 2004/6
Y1 - 2004/6
N2 - The objective of this study was to identify whether muscle mechanoreceptor stimulation is capable of modulating sweat rate. Seven healthy subjects performed two 20-min bouts of supine exercise on a tandem cycle ergometer (60 rpm at 65% of maximal heart rate). After one bout, the subject stopped exercising (i.e., no pedaling), whereas, after the other bout, the subject's legs were passively cycled (at 60 rpm) via a second person cycling the tandem ergometer. This allows for mechanical stimulation of muscle with minimal activation of central command. Esophageal temperature (Tes), mean skin temperature (Tsk), heart rate, mean arterial blood pressure, oxygen consumption, cutaneous vascular conductance (CVC), and sweat rate were not different during the two exercise bouts. Regardless of the mode of exercise recovery, there were no differences in Tes, Tsk, or CVC. In contrast, early in the recovery period, chest and forearm sweat rate were significantly greater in the passive cycling recovery mode relative to the no-pedaling condition (chest: 0.57 ± 0.13 vs. 0.39 ± 0.14, forearm: 0.30 ± 0.05 vs. 0.12 ± 0.02 mg·cm -2·min-1; both P < 0.05). These results suggested that muscle mechanoreceptor stimulation to the previously activated muscle is capable of modulating sweat rate.
AB - The objective of this study was to identify whether muscle mechanoreceptor stimulation is capable of modulating sweat rate. Seven healthy subjects performed two 20-min bouts of supine exercise on a tandem cycle ergometer (60 rpm at 65% of maximal heart rate). After one bout, the subject stopped exercising (i.e., no pedaling), whereas, after the other bout, the subject's legs were passively cycled (at 60 rpm) via a second person cycling the tandem ergometer. This allows for mechanical stimulation of muscle with minimal activation of central command. Esophageal temperature (Tes), mean skin temperature (Tsk), heart rate, mean arterial blood pressure, oxygen consumption, cutaneous vascular conductance (CVC), and sweat rate were not different during the two exercise bouts. Regardless of the mode of exercise recovery, there were no differences in Tes, Tsk, or CVC. In contrast, early in the recovery period, chest and forearm sweat rate were significantly greater in the passive cycling recovery mode relative to the no-pedaling condition (chest: 0.57 ± 0.13 vs. 0.39 ± 0.14, forearm: 0.30 ± 0.05 vs. 0.12 ± 0.02 mg·cm -2·min-1; both P < 0.05). These results suggested that muscle mechanoreceptor stimulation to the previously activated muscle is capable of modulating sweat rate.
KW - Metaboreceptor
KW - Sweating response
UR - http://www.scopus.com/inward/record.url?scp=2442667848&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=2442667848&partnerID=8YFLogxK
U2 - 10.1152/japplphysiol.01370.2003
DO - 10.1152/japplphysiol.01370.2003
M3 - Article
C2 - 14766775
AN - SCOPUS:2442667848
SN - 8750-7587
VL - 96
SP - 2115
EP - 2119
JO - Journal of applied physiology
JF - Journal of applied physiology
IS - 6
ER -