Sparling P B, Snow T K, Millard-Stafford M L
Department of Health & Performance Sciences, Georgia Institute of Technology, Atlanta 30332-0110.
Aviat Space Environ Med. 1993 Aug;64(8):760-3.
A telemetry monitoring system using an ingestible temperature sensor has recently become available commercially, but to our knowledge no published data on exercise applications have been reported. Consequently, core temperature was measured by both ingestible capsule sensors and standard rectal thermistors in six trained subjects (three cyclists, three runners) during 30 to 90 min of progressive cycling or treadmill exercise. Testing was conducted 3-9 h after ingestion of the capsule. The telemetered temperature was lower than the rectal temperature both at rest and during exercise in every subject, with resulting significant (p < 0.005) mean differences (+/- S.D.) of 36.91 (+/- 0.41) vs. 37.50 (+/- 0.21) and 38.01 (+/- 0.33) vs. 38.94 degrees C (+/- 0.24), respectively. The mean temperature difference increased by 58% from rest (0.59 degrees C) to peak exercise (0.93 degrees C). These preliminary findings demonstrate a consistently lower temperature from the capsule sensor located within the GI tract compared to rectal thermistors. Replication of these results and investigation into this disparity are necessary before these ingestible capsules should be used for routine monitoring of core temperature.
一种使用可摄入式温度传感器的遥测监测系统最近已在商业上可用，但据我们所知，尚未有关于运动应用的已发表数据报道。因此，在六名训练有素的受试者（三名自行车运动员、三名跑步运动员）进行30至90分钟的渐进式自行车运动或跑步机运动期间，通过可摄入式胶囊传感器和标准直肠热敏电阻测量核心体温。在摄入胶囊3至9小时后进行测试。在每个受试者中，遥测温度在休息和运动期间均低于直肠温度，由此产生的显著（p < 0.005）平均差异（±标准差）分别为36.91（±0.41）与37.50（±0.21）以及38.01（±0.33）与38.94摄氏度（±0.24）。平均温度差从休息时（0.59摄氏度）到运动峰值时（0.93摄氏度）增加了58%。这些初步发现表明，与直肠热敏电阻相比，位于胃肠道内的胶囊传感器测得的温度始终较低。在这些可摄入式胶囊用于核心体温的常规监测之前，有必要重复这些结果并对这种差异进行研究。
