Exercise-induced changes in lower limbs skin temperature against plasma ATP among individuals with various type and level of physical activity

• Published in: Journal of thermal biology 2024-05, Vol.122, p.103877, Article 103877
• Main Authors: Zarębska, Ewa A., Kusy, Krzysztof, Korman, Paweł, Słomińska, Ewa M., Zieliński, Jacek
• Format: Article
• Language: English
• Subjects: Adenosine triphosphate; Adenosine Triphosphate - blood; Adenosine Triphosphate - metabolism; Adult; Exercise - physiology; Female; Humans; Infrared thermal imaging; IRT; Lower Extremity - blood supply; Lower Extremity - physiology; Male; Nucleotides; Physical Endurance; Skin Temperature; Young Adult
• ISSN: 0306-4565; 1879-0992
• DOI: 10.1016/j.jtherbio.2024.103877

The objective of the study was to examine the lower limbs skin temperature (TSK) changes in response to exhaustive whole-body exercise in trained individuals in reference to changes in plasma adenosine triphosphate (ATP). Eighteen trained participants from distinct sport type ‒ endurance (25.2 ± 4.9 yr) and speed-power (25.8 ± 3.1 yr), and 9 controls (24,9 ± 4,3 yr) ‒ were examined. Lower limbs TSK and plasma ATP measures were applied in parallel in response to incremental treadmill test and during 30-min recovery period. Plasma ATP kinetics were inversely associated to changes in TSK. The first significant decrease in TSK (76–89% of V˙ O2MAX) occurred shortly before a significant plasma ATP increase (86–97% of V˙ O2MAX). During recovery, TSK increased, reaching pre-exercise values (before exercise vs. after 30-min recovery: 31.6 ± 0.4 °C vs. 32.0 ± 0.8 °C, p = 0.855 in endurance; 32.4 ± 0.5 °C vs. 32.9 ± 0.5 °C, p = 0.061 in speed-power; 31.9 ± 0.7 °C vs. 32.4 ± 0.8 °C, p = 0.222 in controls). Plasma ATP concentration did not returned to pre-exercise values in well trained participants (before exercise vs. after 30-min recovery: 699 ± 57 nmol l−1 vs. 854 ± 31 nmol l−1, p