Influence of turnout on foot posture and its relationship to overuse musculoskeletal injury in professional contemporary dancers: a preliminary investigation.
BACKGROUND
The angle of turnout is thought to predispose professional dancers to overuse musculoskeletal injuries of the lower limb; yet, the influence of angle of turnout on foot posture is currently unknown.


METHODS
Twelve professional contemporary dancers (five women and seven men; mean age, 26.8 years) were recruited. The angle of gait and angle of turnout were measured using a quasi-static clinical tracing method. Foot posture was assessed in the base of gait and angle of turnout using the Foot Posture Index. Each dancer completed a dance history and injury questionnaire.


RESULTS
The results show a tendency toward a pronated foot posture (mean, 9°) in the angle of turnout position. A significant relationship was noted between the Foot Posture Index and angle of turnout (ρ = 0.933-0.968, P < .01) and between the number of reported injuries and change in foot posture in the angle of turnout (ρ = 0.789, P < .01) (right foot only). Twenty-eight injuries were reported; male dancers experienced a mean of 2.8 injuries and females a mean of 1.6 injuries. An inverse relationship was noted between age at training initiation and total reported injuries (r =-0.867, P < .01). All of the dancers reported a history of injury to the spine or lower limb, and 9 of the 12 reported an injury within the previous 12 months.


CONCLUSIONS
Turnout is one of the most fundamental aspects of dance technique. This study suggests a trend toward pronation in angle of turnout and a link to lower-limb musculoskeletal injury.
Wales Centre for Podiatric Studies, Cardiff Metropolitan University, Cardiff, United Kingdom.
Sonja N
SN
Cimelli
Sarah A
SA
Curran
D000328:Adult; D012090:Cumulative Trauma Disorders / Q000503:physiopathology*; D003615:Dancing / Q000502:physiology*; D005260:Female; D005528:Foot / Q000503:physiopathology*; D006801:Humans; D007869:Leg Injuries / Q000503:physiopathology*; D035002:Lower Extremity / Q000293:injuries*; D008297:Male; D009140:Musculoskeletal Diseases / Q000503:physiopathology*; D011187:Posture; D011312:Pressure; D011795:Surveys and Questionnaires; D055815:Young Adult