Isbell T R, Klesges R C, Meyers A W, Klesges L M
Department of Psychology, Memphis State University, TN 38152.
JPEN J Parenter Enteral Nutr. 1991 Mar-Apr;15(2):165-8. doi: 10.1177/0148607191015002165.
This investigation evaluated the measurement reliability and reactivity of repeated measurements of resting energy expenditure using different methods of data collection. Thirty subjects were randomly assigned to either face mask, mouthpiece/nose clip, or ventilated canopy collection systems for 45 min a day over 3 days. Results indicated that there were no significant differences among data collection systems nor were there any differences either within or between systems over time. Across all three days of measurement, the first 5 min of data collection on all systems were reactive compared to the subsequent 40 min of assessment. Analyses indicated that acceptable reliability coefficients were obtained after 20 min of continuous data collection in the ventilated canopy and after 40 min with the face mask after a 5-min acclimation period. The results suggest that, following an acclimation period, a single 20-min assessment of resting energy expenditure in both a face mask and ventilated canopy are stable and reliable.
本研究评估了使用不同数据收集方法重复测量静息能量消耗的测量可靠性和反应性。30名受试者被随机分配到面罩、咬嘴/鼻夹或通风天篷收集系统，每天使用一种系统进行45分钟的测量，持续3天。结果表明，数据收集系统之间没有显著差异，且随着时间推移，各系统内部或系统之间也没有差异。在所有三天的测量中，与随后40分钟的评估相比，所有系统数据收集的前5分钟都有反应。分析表明，在通风天篷中持续收集20分钟数据后，以及在面罩测量中经过5分钟适应期后持续收集40分钟数据后，可获得可接受的可靠性系数。结果表明，经过适应期后，对面罩和通风天篷中的静息能量消耗进行单次20分钟的评估是稳定且可靠的。
