I found this study extremely interesting and also supported my experience, the full study can be found at https://www.sciencedirect.com/science/article/abs/pii/S1360859219300610
“As shown above, a Tai Chi Chuan training program may improve hand-foot coordination, muscular tone, sensory homogeneity, body awareness, and particularly self-confidence in autistic children.
Since Tai Chi Chuan engages both the right and left hemispheres during training, it can improve autistic children’s skills and movements, and finally may assist them in recovering from many of the disabilities caused by ASD. Generally, maintaining an active and healthy lifestyle through daily exercise can be a key element in improving the quality of life in these children. This was not specifically evaluated by the present study; however, improvement of daily motor skills is likely to be a primary factor that may subsequently promote the quality of life in children with ASD. Accordingly, further research is needed to evaluate the quality of life and its related factors after Tai Chi Chuan intervention.
In conclusion, it is suggested that participation in exercise activities, especially those which focus on improving balance, seems to be a reliable therapeutic method in children with ASD. It is also worth bearing in mind that the improvement of motor skills in the present study is not the only possible advantage since Tai Chi Chuan training may additionally present new promising approaches in rehabilitation to ameliorate dependency, physical fitness, body control, and sociability in autistic children. In sum, it can be confidently recommended to all relevant coaches and therapists to consider Tai Chi Chuan forms as a primary choice for rehabilitation programs in children with ASD.”