Intervention group
The iExergame training used wearable sensors and a computer interface, which encouraged participants to utilize their full ankle range of motion in coronal (in/eversion), sagittal (dorsi/plantarflexion), and a combination of multiple (pro/supination) planes described in detail below. The IG completed the 4-week iExergame program under the non-weight-bearing condition during routine HD visits for 30-min per session (including breaks), totaling 12 sessions.