Exercising or playing sports is considered to be a challenge for children with profound and multiple disabilities (hereafter referred to as children), who require medical care procedures such as suction and injection. This study examined whether the adapted sports practice called "Hanamaru Kids", which was conducted regularly by the first author of this study, was effective for children and the volunteer supporters. The results of the survey indicated that, besides offering a place where children can participate with pleasure, the practice also helped them acquire the ability to express intentions and emotions, maintain physical strength and posture, and improve sleep quality. On the other hand, for the volunteer supporters, it was a training place where they could learn supportive methods and build relationships with the children. Additionally, the practice led to an increase in children's activities and those who support them. It also helped parents by way of sharing activities with them, and therefore, emphasized on the importance of a symbiotic relationship that supports the local community. In conclusion, the practice of "Hanamaru Kids" proved to be effective and useful for both the children and the volunteer supporters.
