Foot cooling reduces exercise-induced hyperthermia in men with spinal cord injury.
Foot cooling reduces exercise-induced hyperthermia in men with spinal cord injury.
复制标题
足部冷却可减少脊髓损伤男性运动引起的体温过高。
DOI：
10.1249/01.mss.0000117133.75146.66
复制
发表时间：
2004
影响因子：
4.1
通讯作者：
A. Friedlander
中科院分区：
文献类型：
--
作者：
T. Hagobian;KEVIN A. Jacobs;B. Kiratli;A. Friedlander
未标记
脊髓损伤（SCI）患者参加娱乐和精英级别体育运动的人数正在增加。然而，病变下方自主神经系统功能的丧失会损害体温调节能力，并增加相对于健全（AB）个体的热应激风险。
目的
为了检验以下假设：在加热环境中运动会使SCI患者的鼓膜温度（TTY）比AB患者升高更多，并且使用新设备进行足部冷却会减弱两组患者运动期间TTY的升高。
方法
6例SCI受试者（病变C5-T5）和六个AB对照在加热环境中进行测试（平均值+/- SEM，温度= 31.8 +/- 0.2摄氏度，湿度= 26 +/- 1%），在66% +/- 5的摆臂VO 2峰值下持续45分钟，并在两个单独的情况下恢复30分钟，同时进行足部冷却（FC）或不进行足部冷却（NC）随机排列。
结果
在两项试验的运动和恢复期间，SCI TTY高于基线（P < 0.001），但在NC与FC试验中更高（分别为1.6 +/- 0.2 ℃与1.0 +/- 0.2 ℃，P < 0.005）。在AB组中，两项试验的TTY均高于基线（P < 0.001），NC和FC的峰值分别增加0.5 +/- 0.2 ℃和0.3 +/- 0.2 ℃。与AB试验相比，SCI试验中的TTY、面部和背部温度均较高（P < 0.05）。SCI FC组运动和恢复期心率低于SCI NC组（P < 0.05）。
结论
这些结果表明，通过足部提取热量可以提供一种有效的方法来控制SCI患者的鼓膜温度，特别是在高温下运动时。
UNLABELLED
The number of individuals with spinal cord injury (SCI) participating in sports at recreational and elite levels is on the rise. However, loss of autonomic nervous system function below the lesion can compromise thermoregulatory capacity and increase the risk of heat stress relative to able-bodied (AB) individuals.
PURPOSE
To test the hypotheses that exercise in a heated environment would increase tympanic temperature (TTY) more in individuals with SCI than AB individuals, and that foot cooling using a new device would attenuate the rise in TTY during exercise in both groups.
METHODS
Six subjects with SCI (lesions C5-T5) and six AB controls were tested in a heated environment (means +/- SEM, temperature = 31.8 +/- 0.2 degrees C, humidity = 26 +/- 1%) for 45 min at 66% +/- 5 of arm cranking VO2peak and 30 min of recovery on two separate occasions with foot cooling (FC) or no foot cooling (NC) in randomized order.
RESULTS
During exercise and recovery in both trials, SCI TTY was elevated above baseline (P < 0.001) but more so in the NC versus FC trial (1.6 +/- 0.2 degrees C vs 1.0 +/- 0.2 degrees C, respectively, P < 0.005). Within the AB group, TTY was elevated above baseline for both trials (P < 0.001) with peak increases of 0.5 +/- 0.2 degrees C and 0.3 +/- 0.2 degrees C for NC and FC, respectively. TTY, face, and back temperature were higher in both SCI trials compared with AB trials (P < 0.05). Heart rate during exercise and recovery was lower in the SCI FC versus SCI NC (P < 0.05).
CONCLUSION
These results suggest that extraction of heat through the foot may provide an effective way to manipulate tympanic temperature in individuals with SCI, especially during exercise in the heat.