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The identification of risk factors for ankle sprains sustained during netball participation
Alison S Attenborough1, Peter J Sinclair1, Tristan Sharp2
1The University of Sydney, Exercise and Sport Science Discipline, 75 East St, Lidcombe, NSW 2141, Australia.
Objectives:
Ankle sprains account for a large percentage of injuries sustained in netball. The identification of risk factors for ankle sprain is the preliminary action required to inform future prevention strategies.
Design:
Prospective study.
Participants:
Ninety-four netball players from club and inter-district teams.
Methods:
Preseason data were collected for; vertical jump height, perceived ankle instability, sprain history, arthrometry inversion-eversion angles, star excursion balance test reach distances, the number of foot lifts during unilateral stance and demi-pointe balance test results. Participants were followed for the duration of one netball season and ankle sprains were recorded.
Results:
Eleven sprains were recorded for eleven players using a time-loss definition of injury. Ankle sprains occurred at an incidence rate of 1.74/1000 h of netball exposure. One risk factor was identified to increase the odds of sustaining an ankle sprain during netball participation - a reach distance in the posterior-medial direction of the star excursion balance test of less than or equal to 77.5% of leg length (OR = 4.04, 95% CI = 1.00-16.35).
Conclusions:
The identified risk factor can be easily measured and should be considered for preseason injury risk profiling of netball players. Netball players may benefit from training programs aimed at improving single leg balance.
