Body mapping of sweating patterns in male athletes in mild exercise-induced hyperthermia

Smith, Caroline J.; Havenith, George

doi:10.1007/s00421-010-1744-8

Cited by 298 publications

(341 citation statements)

References 32 publications

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“…The LSR ap for the front of the legs and thighs were higher than that for the back of these areas. These data indicating regional differences in LSR obtained throughout an exercise period was similar in trend to that obtained during brief exercise periods in previous studies [19,21,22]. The absorbent pads used here may have covered a smaller sampling area than that of the absorbent materials used in the experiments by Smith and Havenith [21,22].…”

Section: Discussionsupporting

confidence: 84%

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Improved Procedure for Estimating Time-dependent Changes in Local Sweat Rates by Measuring Local Sweat Volumes

Ueda¹

2013

J Ergonomics

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Sweat distribution over 21 body sites in 8 young males was described by determining the local sweat volume (LSR ap ), measured using absorbent pads throughout 3 different bicycle exercises performed at 35, 50, and 60% VO 2 max for 40 min, at 30°C and 50% relative humidity. The local upper back sweat rate was concurrently measured by the ventilated capsule method (LSR vc ) in parallel with the absorbent method. The LSR ap at the upper back correlated strongly with mean LSR vc at the position immediately above the absorbent pad (p<0.05). There were significant differences in LSR ap among the 21 body sites within each exercise intensity (p<0.05). Regional comparisons showed a greater LSR ap at the chest and back and lower LSR ap at the flank, thighs, and legs. Moreover, LSR ap was distributed symmetrically and was greater in the middle compared to the adjoining lateral sites. LSR vc data reanalysis of our previous studies on prepubertal boys, men, and women across a range of ages revealed that during passive and/ or active heating, the LSR vc were arranged in order of lower limbs

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Section: Discussionsupporting

confidence: 84%

“…This absorbent technique has been used to estimate LSR across larger skin areas in runners and football players [19,20]. Moreover, this method was adopted for body mapping of sweating patterns [21,22]. Although the results provided valuable information for the design of clothes, these maps still offered a snapshot of LSR during exercise.…”

Section: Introductionmentioning

confidence: 99%

Improved Procedure for Estimating Time-dependent Changes in Local Sweat Rates by Measuring Local Sweat Volumes

Ueda¹

2013

J Ergonomics

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“…It is known that the sweating response differs regionally (18,19,24,27,40,41) and that many factors affect the differences, such as local skin temperatures (31,47). Because we could not control local skin temperatures in the present study, we calculated the mean values of SR based on measurements on the forehead, chest, and forearm to evaluate the nonglabrous sweating response (SR mean).…”

Section: R729mentioning

confidence: 99%

Sweating response to passive stretch of the calf muscle during activation of forearm muscle metaboreceptors in heated humans

Amano

Ichinose

Nishiyasu

et al. 2014

American Journal of Physiology-Regulatory, Integrative and Comp

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-Activation of muscle metaboreceptors and mechanoreceptors has been shown to independently influence the sweating response, while their integrative control effects remain unclear. We examined the sweating response when the two muscle receptors are concurrently activated in different limbs, as well as the blood pressure response. In total, 27 young males performed passive calf muscle stretches (muscle mechanoreceptor activation) for 30 s in a semisupine position with and without postisometric handgrip exercise muscle ischemia (PEMI, muscle metaboreceptor activation) at exercise intensities of 35 and 50% of maximum voluntary contraction (MVC) under hot conditions (ambient temperature, 35°C, relative humidity, 50%). Passive calf muscle stretching alone increased the mean sweating rate significantly on the forehead, chest, and thigh (SRmean) and mean arterial blood pressure (MAP), but not the heart rate (HR), from prestretching levels by 0.04 Ϯ 0.01 mg·cm 2 ·min Ϫ1 , 4.0 Ϯ 1.3 mmHg (P Ͻ 0.05), and Ϫ1.0 Ϯ 0.5 beats/min (P Ͼ 0.05), respectively. The SRmean and MAP during PEMI were significantly higher than those at rest. The passive calf muscle stretch during PEMI increased MAP significantly by 3.4 Ϯ 1.0 and 2.0 Ϯ 0.7 mmHg for 35 and 50% of MVC, respectively (P Ͻ 0.05), but not that of SRmean or HR at either exercise intensity. These results suggest that sweating and blood pressure responses to concurrent activation of the two muscle receptors in different limbs differ and that the influence of calf muscle mechanoreceptor activation alone on the sweating response disappears during forearm muscle metaboreceptor activation. nonthermal factors; group III and IV muscle afferents; thermoregulation; sympathetic nervous system; sweat gland THE SWEATING RESPONSE DURING exercise is controlled not only by core and skin temperatures (thermal factors) but also by exercise-related (nonthermal) factors, such as afferent inputs from working muscles. It is well known that group III muscle afferents are stimulated predominantly by mechanically sensitive muscle mechanoreceptors, whereas group IV muscle afferents are stimulated mainly by chemically sensitive muscle metaboreceptors. Activation of muscle metaboreceptors by postexercise muscle ischemia (PEMI) under normothermic and mildly hot conditions induces sweating (2, 4, 22, 38). Additionally, Kondo et al. (23) reported that activating the muscle mechanoreceptors by passive limb movement for 2 min evoked slight sweating under hot conditions. Furthermore, the muscle mechanoreflex increases the sweating response during passive recovery (passive limb movement using a tandem ergometer) compared with inactive recovery (resting) after cycling (20,39). These studies suggest that the isolated activation of muscle metaboreceptors and mechanoreceptors can independently affect sweating responses. However, the sweating response is presumably controlled by integrative mechanisms, based on afferent signals from muscle metaboreceptors and mechanoreceptors because physiological integrative control h...

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“…This includes research on the distribution of skin temperature (Clark et al, 1977), sweat production (Havenith et al, 2008;Smith and Havenith, 2011), thermal comfort (Nakamura et al, 2008), thermal sensory spots (Strughold and Porz, 1931), thermal thresholds (Lee et al, 2010) and cold sensitivity (Stevens, 1979).…”

Section: Distribution Of Thermal Sensitivity Across the Bodymentioning

confidence: 99%

“…For other thermal parameters (e.g. : sweating), vast variations within body segments were previously demonstrated (Havenith et al, 2008;Smith and Havenith, 2011). In terms of application of such knowledge, clothing design comes to mind, where the incorporation of design features (e.g.…”

Section: Distribution Of Thermal Sensitivity Across the Bodymentioning

confidence: 99%

Regional distribution of thermal sensitivity to cold at rest and during mild exercise in males

Ouzzahra

Havenith

Redortier³

2012

Journal of Thermal Biology

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Body mapping of sweating patterns in male athletes in mild exercise-induced hyperthermia

Cited by 298 publications

References 32 publications

Improved Procedure for Estimating Time-dependent Changes in Local Sweat Rates by Measuring Local Sweat Volumes

Improved Procedure for Estimating Time-dependent Changes in Local Sweat Rates by Measuring Local Sweat Volumes

Sweating response to passive stretch of the calf muscle during activation of forearm muscle metaboreceptors in heated humans

Regional distribution of thermal sensitivity to cold at rest and during mild exercise in males

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