THE RELATIONSHIP BETWEEN SHOULDER COUNTER-ROTATION ANDLUMBAR MECHANICS DURING FAST BOWLING

  • Helen Crewe
  • Amity Campbell
  • Bruce Elliott
  • Jacqueline Alderson
Keywords: cricket, injury, spondylolysis, bowling technique

Abstract

The purpose of this study was to quantify lumbar kinematics and kinetics during fast bowling using a novel inverse dynamics model, and to explore the relationship between shoulder counter-rotation (SCR) (a variable that has been associated with the development of spondylolysis in fast bowlers) and lumbar range of motion and moments. Ten fast bowlers participated in the study. A large correlation was found between SCR and lumbar rotation range of motion between front foot contact and ball release (r=0.628, p<0.01) which in turn was found to have a moderate correlation with the peak lumbar flexion moment (r=0.437, p<0.05). This is a significant finding as SCR is a relatively simple measurement that can be used as a field based screening tool. Future research should investigate the link between these variables and spondylolysis development.
Section
Coaching and Sports Activities