Background Fall prevention is crucial for older people and people following musculoskeletal injuries. Aging or injuries affect the postural control ability due to neuromuscular dysfunction and muscle weakness. The ankle eccentric muscle contraction play an important role in postural control while standing. The Y-Balance Test (YBT), especially the posteromedial (PM) reach direction (PM-YBT), is known as a useful test to identify dynamic postural control deficits. However, there exists a need to understand how ankle muscle function explains the performance during the PM-YBT.
Nozu et al. (Thu,) studied this question.