###### Abstract
Personally, adults with CP are required to receive medical assistance and protection, and to be taken care of by their families from childhood, increasing stress on the families and further negatively affecting their mental state [15]. The Gross Motor Function Classification System (GMFCS) that represents the degree of motor disorders in adults with CP is used to investigate its effect on their lives [1; 13; 15; 16; 17]. Study results have reported that the GMFCS, which can represent the exercise ability of adults with CP, has a close relationship with QOL and HRQOL, specifically because the higher the level of GMFCS, the lower the QOL and HRQOL, and that in particular, they are strongly associated with physical happiness, rather than psychological happiness [16; 17]. In addition, a number of limitations, including discomfort, etc., in the daily and social lives of adults with CP adversely affect their health status, which may also lead to a suggestion for community participation or to a lowered QOL [18]. Eventually, they might grow negative ideas that could cause lowered QOL, blaming their disability, which would put them at risk of becoming increasingly isolated from society [19; 20]. In other words, it is considered desirable to evaluate QOL for predicting both the health status and disease of those who have disabilities, such as CP, etc., and their social and emotional adaptive behaviors. In the context of increasing interest in the functional and mental aspects of those with disabilities and the types of and changes in disabilities in recent years, one of the areas of QOL to focus only on those aspects is the health-related quality of life (HRQOL). The HRQOL evaluates the effect before and after treatment on the state of their well-being [18], and can predict any disease they may have or their current health status [12]. There are many factors that affect QOL, such as health status, lifestyle, living environment, and job status. Additionally, HRQOL can be largely divided into two types, i.e., the physical and mental aspects, and it is thought that the most important factor in improving HRQOL is moderate or higher physical activity. Among such physical activities, exercise is considered to be the most important among health behaviors, and it has been reported that regular exercise habits have a significant effect on the improvement of HRQOL according to the results of previous studies [21; 22; 23]. There have been no studies that identified the level of physical or sports activity in adults with CP, but for children, adolescents with typical development, and healthy adults, recommendations call for a training frequency of two to three times per week on nonconsecutive days [24]. Studies on the relationship between the exercise habits of adults with CP and their HRQOL have not yet been conducted. However, it has been reported that the depression-related score of elderly people with depression becomes significantly lower at the end of exercise than that before exercise, according to the results of previous studies on chronically ill patients [19], stress and depression in adults with cardiovascular risk factors are reduced, and their HRQOL is improved according to a study on the effect of Tai Chi and Qigong medical exercises on those adults. It has also been reported that exercise and physical activity during leisure time have a positive effect on the improvement of HRQoL according to a study on general adults [23]. As such, it can be thought that a regular exercise habit is closely related to improving HRQoL, and that the habit is also an important factor in improving HRQoL of adults with CP. However, studies on the relationship between the exercise habits of adults with CP and their CP have not yet been conducted. Therefore, this study aimed to investigate the effect of exercise habits and types on the HRQoL of adults with CP based on the fact that regular exercise habits, such as exercise, physical activity, etc., during leisure time have a positive effect on the improvement of the HRQoL.