Use of field-based tests to identify risk factors for injury to fast bowlers in cricket
- 1NSW Injury Risk Management Research Centre, University of NSW, Sydney, NSW, Australia
- 2School of Human Movement and Sport Sciences, University of Ballarat, Ballarat, Victoria, Australia
- 3School of Safety Science, University of NSW, Sydney, NSW, Australia
- 4School of Human Movement and Exercise Science, University of Western Australia, Crawley, WA, Australia
- Dr R Dennis, IRMRC, University of NSW, Sydney, NSW, 2052 Australia;
- Accepted 26 March 2008
- Published Online First 7 April 2008
Objective: To identify risk factors for injury to cricket fast bowlers using field-based tests.
Design: Prospective cohort study.
Setting: High performance Australian cricket.
Participants: Ninety-one male adolescent and adult fast bowlers (aged 12–33 years).
Assessment of risk factors: A field-based pre-participation screening, consisting of musculoskeletal, fitness and anthropometric assessments and analysis of bowling technique was undertaken. Bowlers were prospectively monitored over the 2003–4 season and bowling workload and injuries were recorded. Logistic regression was used to identify injury risk factors.
Main outcome measurement: Repetitive microtrauma injury to the trunk, back or lower limb associated with fast bowling.
Results: Two variables were identified as independent predictors of injury in the multivariate logistic regression analysis. Bowlers with hip internal rotation of ⩽30° on the leg ipsilateral to the bowling arm were at a significantly reduced risk of injury (OR 0.20, 95% CI 0.06 to 0.73) compared with bowlers with >40° of rotation. Bowlers with an ankle dorsiflexion lunge of 12.1–14.0 cm on the leg contralateral to the bowling arm were at a significantly increased risk (OR 4.03, 95% CI 1.07 to 15.21) than bowlers with a lunge of >14 cm. Bowlers with a lunge of ⩽12 cm were also at an increased risk, but not significantly so (OR 1.38, 95% CI 0.40 to 4.84).
Conclusions: Biomechanical research is needed to investigate how these two intrinsic risk factors increase injury risk so that appropriate interventions can be developed.
Funding: This project was funded by Cricket Australia. RD was supported by an NHMRC Public Health PhD scholarship during the data collection and analysis phase, and by an NHMRC Population Health Capacity Building Grant in Injury Prevention, Trauma and Rehabilitation during the reporting and publication phase. CF was supported by an NHMRC Principal Research Fellowship.
Competing interests: None.
Ethics approval:The project was approved by the University of New South Wales Human Research Ethics Committee.