2.6. Exercise Intervention
HEAT, EVENT
During the examination period, subjects in all groups were instructed to walk outdoors for 40 ± 10 min, 2 days per week, and to record any other activities in a lifestyle survey. The walking speed was to be maintained at the usual pace. Additionally, it was specified that exercise should not be performed on consecutive days whenever possible.In the event of inclement weather conditions such as heavy rain or extreme heat that would make safe outdoor walking difficult, the following indoor alternative exercises were permitted:Walking on a treadmill or other walking machines at a normal walking speed for a designated period of time.Foot stomping on a flat surface for a designated time at a tempo equivalent to normal walking without moving.If exercise was substituted for (1) or (2) above, or, if exercise could not be carried out due to unavoidable reasons, the reason was recorded on the lifestyle questionnaire.