Anticipatory head control mechanisms in response to impact perturbations: An investigation of club rugby players with and without a history of concussion injury.

Objectives: The primary objective of this study was to examine rugby players anticipatory and compensatory head control during predictable and unpredictable impact events.

Methods: An observational cross-sectional study design. Fifty-one (17_healthy 34_concussion) male rugby players were exposed to external predictable and unpredictable impact perturbations at mid-chest level.