摘要
为验证ISO 8996:2004标准中心率预测代谢率模型的准确性,通过间接测热法测量了89名20~30岁的办公人员在平躺、静坐及2、3、4、5、6 km/h走步活动下的代谢率和心率。采用逐步回归的方法,基于储备心率建立了代谢率预测方程,并通过代谢率预测值和实测值对比了2种预测方法的优劣。结果表明,ISO 8996:2004模型在预测代谢率时误差较大(21%),不适用于中国人代谢率的预测;基于储备心率的预测方程精度较高,比ISO 8996:2004模型的准确性整体上提高了11%,单个活动预测准确性提高了2%~26%。
In order to validate the accuracy of the analytical method for estimating metabolic rate in ISO 8996:2004,indirect calorimetry is used to measure metabolic rate and heart rate of 89 office workers aged 20-30 years under lying down,sitting still,and walking activities of 2,3,4,5,6 km/h.Based on reserved heart rate,the metabolic rate prediction equation is established by stepwise regression.The advantages and disadvantages of two prediction methods are compared by predicted and measured values of metabolic rate.The results show that,the equation in ISO 8996:2004 is not suitable for Chinese because of a large error(21%)in prediction of metabolic rate.The prediction equation based on reserved heart rate is more accurate,with an overall accuracy of 11%higher than the ISO 8996:2004 method,and the prediction accuracy of individual activities is also improved by 2%-26%.
作者
禹建申
高斯如
李铭慧
翟永超
Yu Jianshen;Gao Siru;Li Minghui;Zhai Yongchao(Xi’an University of Architecture and Technology,Xi’an)
出处
《暖通空调》
2023年第4期149-155,99,共8页
Heating Ventilating & Air Conditioning
基金
国家自然科学基金面上项目“运动状态下人体代谢率特征及动态热舒适机理研究”(编号:51978553)。
关键词
代谢率
心率
体力活动
间接测热法
逐步回归
metabolic rate
heart rate
physical activity
indirect calorimetry
stepwise regression
