Skin temperature and lactate threshold during muscle work in athletes

The aim of the study was to assess the impact of cryotherapy on changes of surface body temperate and efficiency of thermoregulatory processes in relation to the intensity of cryogenic stimuli. The study included 30 football players and 30 students. Intervention: both groups were divided into three subgroups treated with cryostimulation at -100, -120 and -140°C. Body surface temperature was measured at baseline (before cryostimulation), 5 and 30 min after the treatment. Regions of trunk, lower limbs and upper limbs were examined. The difference of baseline raw curves and raw curves performed directly and 30 min after cryotherapy at the three levels of temperature in both studied groups. Baseline surface body temperature was lower in athletes than in student. Decrease in surface temperature observed after cryotherapy was significant and greater in football players than in students. The drop in surface temperature in athletes by 4.87°in the regions of upper limbs, trunk by 5.9°C and lower limbs by 7.81°C was reported. After 30-min restitution, the surface temperature restored to baseline in all subjects in all examined regions with greater dynamics in athletes. The study results indicate better effectiveness of thermoregulatory processes in football players. In this group, the greatest changes in temperature occurred after cryostimulation at temperature -120°C.Further research is required to assess recommended values of thermal stimuli.

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“…In the recent years, non-invasive diagnostic tools of body temperature imaging become increasingly popular [28,29]. They include thermography.…”

Section: Discussionmentioning

confidence: 99%

Thermoregulation of football players after cryotherapy in thermography

Dębiec-Bąk

Pawik

Skrzek

2016

J Therm Anal Calorim

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“…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]. Based on this trend our short test should produce a reduction of the T sk once it finalized.…”

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

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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 ...

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“…However, according to our knowledge correlations between thermal parameters and biochemical factors in athletes have not been analysed yet except for the lactate level. Lactate threshold against temperature during maximal aerobic test in athletes [11] and in capillary blood during post-exercise recovery in non-trained subjects [12] was reported.…”

Section: Introductionmentioning

confidence: 99%

“…In turn, increase in plasma activities of CK and LDH due to their leakage from cell into the extracellular fluids is generally considered as being indicative of cellular damage. Therefore, a daily monitoring of training status takes place with measurement of these parameters in plasma [7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

A preliminary study on infrared thermal imaging of cross-country skiers and swimmers subjected to endurance exercise

Drzazga

Binek

Pokora

et al. 2018

J Therm Anal Calorim

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This study was focused on the thermal mapping of skin over the selected muscle zones in two groups of elite athletes fully engaged in completely other sports performing about an hour running effort at individual AT intensity. Two groups of elite male athletes, a group of cross-country skiers (CS; N = 6) and a group of elite endurance swimmers (SW; N = 4), were investigated. Thermal images of sportsmen' body at front and from the rear were recorded before and about 1-2 min after exercise test using camera Flir Systems E60. Functional (heart rate, oxygen uptake, workload) as well as biochemical markers (activities of creatine kinase and lactate dehydrogenase, concentration of lactate and haemoglobin) were also assessed. The marked differentiation in skin temperature distribution in cross-country skiers and endurance swimmers subjected to the same endurance exercise on treadmill was observed. There was significant decrease in temperature in upper body temperature in CS group, while SW group revealed a significant increase in temperature of the lower limbs. The calculated total body skin temperature was also influenced by practicing training of elite athletes. Some significant correlations of physiological, biochemical and morphological parameters (% fat) with average temperature after exercise test were found for different muscle zones in swimmers and cross-country skiers. Statistical analysis showed that workload had the most impact on skin temperature changes, especially in swimmers. The results provide additional information on the muscle work in the different sport disciplines and may be helpful in efficiency evaluation of elite athletes.

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Skin temperature and lactate threshold during muscle work in athletes

Cited by 53 publications

References 10 publications

Thermoregulation of football players after cryotherapy in thermography

Thermoregulation of football players after cryotherapy in thermography

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

A preliminary study on infrared thermal imaging of cross-country skiers and swimmers subjected to endurance exercise

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