Yamada S, Baba Y
Department of Systems, University of Occupational and Environmental Health, Kitakyushu, Japan.
J UOEH. 1990 Mar 1;12(1):77-82. doi: 10.7888/juoeh.12.77.
To estimate a reasonable and convenient method for the assessment of daily energy expenditure in workers, the validity of a calorie counter combined with an accelerometer (Kenz Calorie Counter) was tested during treadmill exercise. Ten male and female students each volunteered for exercise on a treadmill at different running speeds: 9 speeds at 2 to 10 km/h each for male subjects: 8 speeds at 2 to 9 km/h each for female subjects. Energy expenditure measured with respiratory gas analysis was compared with that estimated by the calorie counter outfitted on the waist of the subjects. For running speed slower than 9 km/h, the work intensity reading on the calorie counter increased in direct proportion to the speed of the treadmill. The correlation between running speed and the work intensity reading of the calorie counter was linear up to 8 km/h (y = 0.95 x -0.2, r = 0.96, P less than 0.001). A linear relationship during treadmill exercise (at a speed of less than 9 km/h) was also established between energy consumption measured by respiratory gas analysis and that estimated from the calorie counter (y = 1.00 x + 11.7, r = 0.94, P less than 0.001). Thus, we validated the usefulness of the calorie counter for the assessment of energy expenditure during daily physical activities.
为评估一种合理且便捷的工人每日能量消耗评估方法，在跑步机运动期间测试了一种结合加速度计的卡路里计数器（健士卡路里计数器）的有效性。十名男女生分别自愿以不同的跑步速度在跑步机上运动：男性受试者有9种速度，分别为2至10公里/小时；女性受试者有8种速度，分别为2至9公里/小时。将通过呼吸气体分析测得的能量消耗与受试者腰部佩戴的卡路里计数器估算的能量消耗进行比较。对于低于9公里/小时的跑步速度，卡路里计数器上的工作强度读数与跑步机速度成正比增加。在高达8公里/小时的速度下，跑步速度与卡路里计数器的工作强度读数之间的相关性呈线性关系（y = 0.95x - 0.2，r = 0.96，P < 0.001）。在跑步机运动期间（速度低于9公里/小时），通过呼吸气体分析测得的能量消耗与从卡路里计数器估算的能量消耗之间也建立了线性关系（y = 1.00x + 11.7，r = 0.94，P < 0.001）。因此，我们验证了该卡路里计数器在评估日常体力活动能量消耗方面的有用性。
