Changes in physical activity by day of the week

Abstract

In order to obtain basic information on the weekly fluctuation of Japanese physical activity(PA) for gender and age, 24-hour activities of 33,840 males and 42,108 females recorded by Holter ECG recorders with built-in 3-dimensional acceleration sensor were statistically determined by sex, age, and day of the week in Allostatic State Mapping by Ambulatory ECG Repository (ALLSTAR).A significant weekly fluctuation was observed in both gender, the average of PA in 24 hours was the highest on Monday and then Thursday (men 99.0% ,females 99.4% for Monday 100%) was high. Tuesday(97.8%,98.9%), Wednesday(95.7%,98.2%) and Friday(96.1%,97.7%)were intermediate, Sunday (93.5%, 97%) was low, Saturday(90.4%, 91.2%) was the lowest .It is suggested that there is a weekly fluctuation of about 10% in Japanese PA.In addition, we will also consider weekly fluctuation of PA for regional differences in healthy life expectancy.