Thermographic studies on patterns of skin temperature after exercise

This research aims at quantifying spatial gradients in skin temperature and sweat production under a bicycle helmet. Distribution of sweat production, skin temperature and air temperature was measured at different positions under a bicycle helmet on five male and four female test persons. Effort level was 100 and 150 watt for men (low and high effort level) and 80 and 120 W for women (low and high effort level). Skin temperatures were found to be spatially different (P < 0.05): frontal and lateral region varied 4.6 degrees C at low effort level and 5.3 degrees C at high effort level. Sweat production was found to be not significantly different (P > 0.05). Finally, air temperature variations were found to be spatially different (P < 0.05). Average air temperature differed 2.3 degrees C between lateral and frontal region at high effort level and 2.7 degrees C at low effort level. The results of this research can be used to help designing helmets with better thermal comfort.

show abstract

“…Studies by Livingston et al (1987); Weinstein et al (1991) and Hunold et al (1992) found that skin temperature Rear l.…”

Section: Discussionmentioning

confidence: 97%

Spatial differences in sensible and latent heat losses under a bicycle helmet

Bruyne

Aerts

Perre³

et al. 2008

Eur J Appl Physiol

View full text Add to dashboard Cite

show abstract

“…Some studies also reported on drops in body surface temperature after exercise [11][12][13][14]. However, these studies were conducted on very small sample groups.…”

Section: Introductionmentioning

confidence: 99%

The use of thermal imaging to evaluate body temperature changes of athletes during training and a study on the impact of physiological and morphological factors on skin temperature

Chudecka¹,

Lubkowska²

2018

Hum Mov.

View full text Add to dashboard Cite

Purpose. The aim of this study was to assess the temperature changes of selected body surfaces (the arm and forearm) as a res ponse to 90minute physical exercise as well as to analyze the impact of physiological and morphological factors on the dynamics of temperature change. Methods. A study group that consisted of 12 professional volleyball players was subjected to endurance training which lasted 90 minutes. Numerous physiological and morphological factors were measured, with mean temperatures registered from the body surface of the upper extremities before, immediately after, and ten min after physical effort by a thermal camera (SC500 ThermaCAM camera) at room temperature. Results. After physical exercise, a fall in skin temperature result ing from prolonged sweating during the dynamic exercise tests was observed. The temperature changes in volleyball players, recorded in a series of tests, were found to be larger on the front surfaces of their upper extremities when compared to the rear. In addition, statistically significant positive correlation between maximum oxygen uptake (VO 2max ) and %Hr max , calculated with the decrease in skin temperatures, was found. Conclusions. The strong and statistically significant influence of maximum oxygen uptake on the drop in surface temperature of the upper extremities (arm and forearm) immediately after the exercise indicates that thermography can be used as an additional, noninvasive method that provides information on a player's fitness level in comparison to other athletes.

show abstract

“…Most the studies in which the subjects were exposed to constant and prolonged exercise resulted in an increased T sk [17,[36][37][38][39][40][41][42][43][44][45][46]. In contrast, graded, intermittent or maximal exercises normally performed for brief period, resulted in decreased T sk [18,[47][48][49][50][51][52][53][54][55].…”

Section: Discussionmentioning

confidence: 99%

Relationship between shoulder pain and skin temperature measured by infrared thermography in a wheelchair propulsion test

Rossignoli

Fernández-Cuevas

Benito

et al. 2016

Infrared Physics & Technology

View full text Add to dashboard Cite

h i g h l i g h t sT sk response of wheelchair athletes before and after a propulsion test is presented. The relation between SP and T sk before and after the propulsion test is obtained. Subjects showed lower resting T sk and slower heat dissipation than able-bodied. There were significant negative correlations between the T sk and SP. There were no correlations between the kinematic variables and the shoulder pain. a b s t r a c t Introduction: Wheelchair Users (WCUs) depend on their upper extremities for their daily living. Therefore, it is not unusual to find that shoulder pain (SP) is a problem for WCUs and reduces their participation in sport and leisure activities. Objectives: The aims of this study were 1 -to analyse skin temperature measured by infrared thermography (IRT) before (pre-test), one minute after (post-test) and 10 min after (post-10) the kinematic wheelchair propulsion test (T-CIDIF) of athletic wheelchair users; 2 -to evaluate the relationship between shoulder pain (SP) and Skin Temperature Asymmetry (DT sk ) before and after (pre-test, posttest, post-10) the T-CIDIF, and to relate the SP with the kinematic variables of the T-CIDIF. Participants & interventions/procedure: A volunteer sample of 12 wheelchair athletes completed an exercise test (T-CIDIF) in their own wheelchair. It consisted in a 30-s maximum test performed on two rollers. Two linear transducers connected to the rollers registered the number of propulsions, maximum and mean velocity and power of each arm. SP was assessed with the Wheelchair Users Shoulder Pain Index (WUSPI). Skin temperature (T sk ) of the anterior and posterior upper body was measured before and after the T-CIDIF by using an infrared camera. A total of 26 ROIs were evaluated with respect to the opposite side of the body to identify significant (DT sk ). Results/main outcome measure(s): Significant differences were observed between the T sk of the post-10 and pre-test in 12 ROIs, and between the post-10 and the post-test in most of the ROIs. These differences are attenuated when the DT sk is compared before and after exercise. T sk tends to initially decrease immediately after the test and then significantly increase after 10 min of completing the T-CIDIF. The DT sk vs SP analysis yielded significant inverse relationships (from r = À0.58 to r = À0.71, p < 0.05) in 5 of the 26 ROI. No significant correlations between propulsion variables and SP questionnaire were found. All T-CIDIF variables were significantly correlated with the temperature asymmetries in multiple ROIs (from r = À0.86 to r = À0.58, from p < 0.05 to p < 0.001). Conclusions: These results present indications that high performance wheelchair athletes exhibit similar capacity of heat production than able-bodied. The thermographic data inversely correlates with the SP and the kinematic variables, but the last is not related to SP. This work contributes to improve the understanding about temperature changes in wheelchair athletes during exercise, and could be used to assess the efficacy of various ...

show abstract

Thermographic studies on patterns of skin temperature after exercise

Cited by 37 publications

References 10 publications

Spatial differences in sensible and latent heat losses under a bicycle helmet

Spatial differences in sensible and latent heat losses under a bicycle helmet

The use of thermal imaging to evaluate body temperature changes of athletes during training and a study on the impact of physiological and morphological factors on skin temperature

Relationship between shoulder pain and skin temperature measured by infrared thermography in a wheelchair propulsion test

Contact Info

Product

Resources

About