Klinenberg E, So Y, Rempel D
Ergonomics Branch, Armstrong Laboratory, Brooks Air Force Base, TX, USA.
J Hand Surg Am. 1996 Jan;21(1):132-7. doi: 10.1016/S0363-5023(96)80166-3.
This study examines the effect of skin temperature on fingertip vibrotactile sensitivity measurements and the resulting implications for carpal tunnel syndrome screening tests. Twenty subjects (11 men, 9 women) were tested for fingertip vibrotactile thresholds using the method of limits at four different frequencies (31.5, 125, 250, and 500 Hz) and six temperature categories (17 degrees-20 degrees C, 20 degrees-23 degrees C, 23 degrees-26 degrees C, 26 degrees-29 degrees C, 29 degrees-32 degrees C, 32 degrees-35 degrees C). Vibrotactile sensitivity thresholds increased with decreasing fingertip skin temperature. Furthermore, the relationship was a function of vibration frequency. Higher frequencies were more affected by temperature than lower frequencies, with significant effects beginning at 29 degrees C. These temperature-related effects may lead to possible false positive results in screening for carpal tunnel syndrome or other neuropathies. To minimize potential temperature-induced misclassification errors during these screening tests, fingertip skin temperature should be recorded before measurement and probably maintained above 29 degrees C during the measurement.
本研究考察了皮肤温度对指尖振动触觉敏感度测量的影响以及对腕管综合征筛查测试的潜在影响。20名受试者（11名男性，9名女性）采用极限法在四种不同频率（31.5、125、250和500赫兹）以及六个温度类别（17摄氏度至20摄氏度、20摄氏度至23摄氏度、23摄氏度至26摄氏度、26摄氏度至29摄氏度、29摄氏度至32摄氏度、32摄氏度至35摄氏度）下测试了指尖振动触觉阈值。指尖振动触觉敏感度阈值随指尖皮肤温度降低而升高。此外，这种关系是振动频率的函数。高频比低频受温度影响更大，在29摄氏度时开始出现显著影响。这些与温度相关的影响可能会导致在腕管综合征或其他神经病变筛查中出现假阳性结果。为了在这些筛查测试中尽量减少潜在的温度引起的错误分类误差，应在测量前记录指尖皮肤温度，并且在测量过程中可能应保持在29摄氏度以上。
