通过便携式R-R间期分布记录仪测定习惯性身体活动。

Masironi R, Mansaurian P

Bull World Health Organ. 1974;51(3):291-8.

A new portable apparatus-the Interval Distribution Recorder (IDR)-has been developed by WHO for assessing habitual physical activity. It measures R-R intervals and records counts in 8 heart rate classes-i.e., at 8 levels of physical activity, from sleeping to heavy exercise. It is much simpler, easier to operate, and less expensive than tape recording systems, and it requires only a minimum of skill and of cooperation by the unsupervised subject. It is therefore suitable for population studies. The IDR system yields more precise information than that obtained by using heartbeat totalizers, which only give a mean heart rate value for the day and do not allow detection of differences in activity patterns.

世界卫生组织研发了一种新型便携式仪器——间歇分布记录仪（IDR），用于评估日常身体活动。它测量R-R间期，并记录8个心率等级的计数，即8种身体活动水平，从睡眠到剧烈运动。它比磁带记录系统更简单、更易于操作且成本更低，并且在无监督的情况下，受试者只需具备极少的技能并给予极少的配合。因此，它适用于人群研究。与使用心跳计数器相比，IDR系统能提供更精确的信息，心跳计数器只能给出一天的平均心率值，无法检测活动模式的差异。