NTRODUCTION
Sleep disorders in elderly people hinder their social
adaptation and activities in the community, and constitute
a serious problem with regard to the maintenance
of quality of life. Sleep disorders are among the
most common difficulties facing elderly people, whose
primary goal is to maintain a healthy, independent
lifestyle. We conducted the investigative research on
the lifestyle factors that influence sleep quality.1 The
results demonstrated that lifestyle, habits, including
moderate exercise such as walking in the evening, and
a short nap (30 min between 13:00 and 15:00), are
important in the maintenance and improvement of
sleep quality, and that sleep quality is closely related
to physical and mental health.We also suggested that
improvement of nocturnal sleep is related to proper
awakening maintenance. The purpose of the present
study is to examine the effects of a short nap and moderate-intensity exercise in the evening on the sleep quality of elderly persons who have difficulty in sleeping.