Abstract：
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 < 0.001, η2 = 0.961 and 812 ± 35 nmol l-1 vs. 975 ± 55 nmol l-1, p < 0.001, η2 = 0.974 in endurance and speed-power, respectively), unlike in controls (651 ± 40 nmol l-1 vs. 687 ± 61 nmol·l-1, p = 0.58, η2 = 0.918). The magnitude of TSK and plasma ATP response differed between the groups (p < 0.001, η2 = 0.410 for TSK; p < 0.001, η2 = 0.833 for plasma ATP). We conclude that lower limbs TSK change indirectly corresponds to the reverse course of plasma ATP during incremental exercise and the magnitude of the response depends on the level of physical activity and the associated to it long-term metabolic adaptation.
摘要：
该研究的目的是根据血浆三磷酸腺苷（ATP）的变化，检查受训人员对力竭全身运动的反应的下肢皮肤温度（TSK）变化。来自不同运动类型的18名受过训练的参与者-耐力（25.2±4.9年）和速度-力量（25.8±3.1年），并检查了9名对照（24,9±4,3年）。响应于递增的跑步机测试和30分钟的恢复期，并行应用下肢TSK和血浆ATP测量。血浆ATP动力学与TSK的变化成反比。TSK的首次显着降低（V•O2MAX的76-89％）发生在血浆ATP显着升高（V•O2MAX的86-97％）之前不久。在恢复期间,TSK增加,达到锻炼前的值(锻炼前与30分钟恢复后：31.6±0.4°Cvs.32.0±0.8°C,p=0.855耐久；32.4±0.5°Cvs.32.9±0.5°C,速度功率p=0.061；31.9±0.7°Cvs.32.4±0.8°C,对照中p=0.222)。训练有素的参与者的血浆ATP浓度未恢复到运动前的值（运动前与30分钟恢复后：699±57nmoll-1vs.854±31nmoll-1，p<0.001，η2=0.961和812±35nmoll-1与975±55nmoll-1，p<0.001，η2=0.974，耐久性和速度功率，分别)，与对照组不同（651±40nmoll-1与687±61nmol·l-1，p=0.58，η2=0.918）。各组之间TSK和血浆ATP反应的幅度不同（TSK的p<0.001，η2=0.410；血浆ATP的p<0.001，η2=0.833）。我们得出的结论是，下肢TSK的变化间接对应于增量运动过程中血浆ATP的反向过程，并且反应的大小取决于身体活动水平及其长期代谢适应。
