Research Institute for Sport and Exercise, University of Canberra, Australia; AIS Operations, Australian Institute of Sport, Australia.
Research Institute for Sport and Exercise, University of Canberra, Australia.
J Sci Med Sport. 2021 Aug;24(8):831-836. doi: 10.1016/j.jsams.2021.03.005. Epub 2021 Mar 13.
Determine the extent and underlying causes of post-exercise hyperthermia in athletes with a spinal cord injury following exercise.
Observational.
Thirty-one males (8 with tetraplegia [TP; C5-C8], 7 with high paraplegia [HP; T1-T5], 8 with low paraplegia [LP; T6-L1] and 8 able-bodied [AB]), recovered in 35°C/50%RH for 45min after 30-min of exercise at a metabolic heat production (H) of 4.0W/kg (AB vs TP) or 6.0W/kg (AB vs HP vs LP). Esophageal (T), gastrointestinal (T) and skin temperatures, H, local sweat rate (LSR) and mean arterial pressure were measured.
TP maintained a higher T (38.05°C [95% CI: 37.83°C, 38.28°C], AB: 36.77°C [36.56°C, 36.98°C], p<0.001) and T (TP: 38.36°C [38.15°C, 38.58°C], AB: 37.26°C [37.04°C, 37.47°C], p<0.001), with peak values observed 45min post-exercise. Core temperatures all declined in HP, LP and AB, but HP maintained a higher T than AB (p=0.030), and higher T than LP and AB (p=0.019). No differences in post-exercise H were observed between TP and AB (p=0.264), or HP, LP and AB (p=0.124). Evaporative heat loss was estimated to be zero in TP, while back LSR was greater in HP than LP (p=0.009). Minimal dry heat loss occurred in SCI groups (TP: 9W/m [6, 12], HP: 4W/m [1, 6], LP: 2W/m [0, 5]).
Substantial post-exercise hyperthermia is evident in TP (∼1.4°C hotter than AB after 45min of post-exercise recovery) due to minimal evaporation. HP have delayed post-exercise thermoregulatory recovery whereas LP respond similarly to AB.
确定运动后脊髓损伤运动员运动后体温升高的程度和原因。
观察性研究。
31 名男性（8 名四肢瘫痪[TP；C5-C8]，7 名高位截瘫[HP；T1-T5]，8 名低位截瘫[LP；T6-L1]和 8 名健全人[AB]）在代谢产热量（H）为 4.0W/kg（AB 与 TP）或 6.0W/kg（AB 与 HP 与 LP）的情况下，运动 30 分钟后，在 35°C/50%RH 下恢复 45 分钟。测量食管（T）、胃肠道（T）和皮肤温度、H、局部出汗率（LSR）和平均动脉压。
TP 保持更高的 T（38.05°C[95%CI：37.83°C，38.28°C]，AB：36.77°C[36.56°C，36.98°C]，p<0.001）和 T（TP：38.36°C[38.15°C，38.58°C]，AB：37.26°C[37.04°C，37.47°C]，p<0.001），在运动后 45 分钟观察到峰值。HP、LP 和 AB 的核心温度均下降，但 HP 保持比 AB 更高的 T（p=0.030）和比 LP 和 AB 更高的 T（p=0.019）。TP 与 AB（p=0.264）或 HP、LP 和 AB（p=0.124）之间的运动后 H 无差异。TP 中估计蒸发散热为零，而 HP 中的背部 LSR 高于 LP（p=0.009）。SCI 组中最小的干热损失（TP：9W/m[6,12]，HP：4W/m[1,6]，LP：2W/m[0,5]）。
TP 中明显存在运动后体温升高（运动后恢复 45 分钟后比 AB 高约 1.4°C），这是由于蒸发量极小。HP 运动后体温调节恢复延迟，而 LP 与 AB 反应相似。
