Physical activity energy expenditure measured using a portable telemetric device in comparison with a mass spectrometer
Physical activity energy expenditure measured using a portable telemetric device in comparison with a mass spectrometer
复制标题
使用便携式遥测设备与质谱仪测量的身体活动能量消耗
DOI：
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发表时间：
2003
影响因子：
18.4
通讯作者：
A. Lorenzo
中科院分区：
文献类型：
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作者：
C. Maiolo;G. Melchiorri;L. Iacopino;S. Masala;A. Lorenzo
背景：一些研究已经评估了便携式代谢气体分析系统的准确性，该系统测量身体活动的能量消耗。自Cosmed K2遥测系统以来，已经开发了两种K4设备（RQ和b2）。目的：比较Cosmed K4 RQ与传统方法（质谱仪）对进行不同强度体育锻炼的健康受试者的测量结果。方法：9名健康男子足球运动员（平均（SD）年龄18.3（2.2）岁）进行了从8 km/h到精疲力竭的增量运动跑步测试，每个测试方案水平增加2 km/h。使用Cosmed K4 RQ和Airspec QP9000质谱仪同时收集过期空气。在休息和每个运动强度下测量氧气消耗（Vo2）和二氧化碳产生（Vco2）。结果：两种仪器测量的Vo2和Vco2在休息或运动时无显著差异。结论：将Cosmed K4 RQ系统应用于静止状态、亚极限运动和极限运动时的Vo2和Vco2测量，可能会引起运动生理学家、营养学家和医生的兴趣。
Background: Several studies have evaluated the accuracy of portable metabolic gas analysis systems, which measure physical activity energy expenditure. Since the Cosmed K2 telemetric system, two K4 devices (RQ and b2) have been developed. Objective: To compare measurements using the Cosmed K4 RQ with measurements by a traditional method (mass spectrometer) for a sample of healthy subjects performing physical exercise of various intensities. Methods: Nine healthy male footballers (mean (SD) age 18.3 (2.2) years) performed an incremental exercise running test from 8 km/h to exhaustion, with an increase of 2 km/h for each level of the test protocol. The expired air was collected simultaneously using the Cosmed K4 RQ and Airspec QP9000 mass spectrometer. Oxygen consumption (Vo2) and carbon dioxide production (Vco2) were measured at rest and at each exercise intensity. Results: No significant differences were found between Vo2 and Vco2 measured by the two instruments, at rest or during exercise. Conclusions: The application of the Cosmed K4 RQ system for Vo2 and Vco2 measurements at rest and during both submaximal and maximal exercise may be of interest to sport physiologists, nutritionists, and doctors.