The efficacy of strength and conditioning training on dance injury, physical fitness and dance performance in Chinese pre-professional dancers

This is an author's accepted manuscript of an article due to be published by Taylor & Francis in European Journal of Sport Science. The accepted manuscript may differ from the final published version.Objective: To examine the effects of a strength and conditioning training intervention on dance injury, physical fitness and dance performance in Chinese pre-professional dancers. Design: A prospective non-randomized controlled trial. Methods: A total of 89 full-time pre-professional dancers participated. Sixty-seven dancers volunteered for a 12-week strength and conditioning training intervention (2-session/week, 4060-min/session), and 22 dancers acted as controls. All members of the intervention group carried out seven physical fitness tests pre- and post-intervention and a dance performance test using a ratified 10-item performance proficiency tool. Information on injury was self-reported by the dancers using a weekly remote dance injury monitoring tool. An inclusive definition of injury was used to record all injuries, even if they didn’t cause a cessation of training. Multivariate analysis of variance was employed to assess differences in physical fitness and dance performance pre and post-intervention. Injury data were initially analyzed for differences between the intervention and control groups; the intervention groups’ injury data were further analyzed by comparing to their own data collected during the previous year at the same period. Results: The intervention group demonstrated significant increases in physical fitness (p0.05). The intervention group also demonstrated lower weekly injury prevalence (28% vs 15%, p<0.001) and injury incidence (8.09 vs 5.16 injuries per 1000hrs, p