body equilibrium 21 human 20 male 16 adult 15 female 14 Article 13 Humans 13 Postural Balance 13 controlled study 11 clinical article 9 physiology 7 Male 6 aged 6 Female 5 gait 5 cognition 4 exercise 4 movement (physiology) 4 muscle contraction 4 pathophysiology 4 task performance 4 Adult 3 Aged 3 Exercise 3 Movement 3 article 3 child 3 comparative study 3 disease severity 3 human experiment 3