Biology of Sport
pISSN 0860-021X    eISSN 2083-1862
Archival Issues
Volume 33, 2016
Volume 32, 2015
Volume 31, 2014
Volume 30, 2013
Volume 29, 2012
Volume 28, 2011
Volume 27, 2010
Volume 26, 2009
Volume 25, 2008
Volume 24, 2007
Volume 23, 2006
Volume 22, 2005
Volume 21, 2004
Volume 20, 2003
Archival Issues 1984-1998
Information for Authors
Special Information
Journal Abstract
Sweat gland activity following thermal and cholinergic training
JA Yaggie, T Niemi, MJ Buono
Biol Sport 2005; 22(1):3-11
ICID: 891549
Article type: Original article
IC™ Value: 10.26
Abstract provided by Publisher
Heat acclimation is an important counter-mechanism to minimize heat distress. Acclimation can occur through several mechanisms including warm-water immersion. Iontophoresis of pilocarpine has been shown to cause an acute sweat response, but has not been studied to assess its sustaining effects. The purpose of this investigation was to compare the physiological responses of repeated exposure to local heat vs. cholinergic agents on sweat gland function. Ten healthy, males (25.54.3 yrs; 178.87.5 cm; 8510.5 kg) served as their own controls. Sweat gland training consisted of 2-weeks of treatment, including 7-days of repeated exposure to pilocarpine to the right upper extremity (RUE), followed by 7-days of localized heat acclimation training (43ºC moist heating packs) to the left upper extremity (LUE). Sweat rate (SR), sweat gland density (SGD), and sweat rate per gland (S/G) were determined following pilocarpine stimulation on day 1 (T1), day 7 (T2), and day 14 (T3) on the RUE and LUE. Baseline readings of SR (6.590.69 g•m2•min-1 and 6.170.67) and SGD (1183 glands/cm2 and 1132) for the RUE and LUE were not significantly different on day 1 (p>0.05). Following repeated pilocarpine iontophoresis, the RUE exhibited a 4% decrease in SGD (1143 glands/cm2) and a 50% reduction in SR (3.280.36 g•m2•min-1). Following heat acclimation the LUE showed an increase in SGD of 7% (1213 glands/cm2) and a 36% increase in sweat rate (SR=8.420.93 g•m2•min-1) (p<0.05). These data indicate that sweat glands are more productive following local heat acclimation and are less responsive following repeated exposure to cholinergic-agonists.

ICID 891549

Related articles
  • in IndexCopernicus™
         Sweat gland [0 related records]
         thermoregulation [14 related records]
         Heat acclimation [0 related records]


    Copyright © Biology of Sport  2017
    Page created by Index Copernicus Ltd. All Rights reserved.