The 24-h distribution of falls and person-hours of physical activity in the home are strongly associated among community-dwelling older persons

Physical activity is strongly associated with the number of falls in the home, measured over 24 h. Older persons may be at increased risk of falling if they are encouraged to become more physically active, or if they often get out of bed at night. Thus in addition to health-related factors, changes in level of physical activity should also be taken into account when estimating a person's risk of falling.