Increasing interest in health and quality of life has been accompanied by demand for exercise facilities and space. Although differing by age and gender, half of Korean teenagers exercise regularly. Walking, light jogging, stretching, and cycling are among regular exercises enjoyed by many people. Also, many people pursue activities such as weightlifting, swimming, yoga, hiking, and badminton more than twice a week. Exercises enjoyed one to three times per month include hiking, soccer, and fishing. Such daily exercises can be pursued in solitude and do not require much equipment. However, a variety of daily exercise-related clubs have been recently organized