THE EFFECT OF ELBOW AXIS DEFINITION ON THE CALCULATION OF FLEXION-EXTENSION AND ABDUCTION-ADDUCTION ANGLES FOR THE BOWLING ARM IN CRICKET

Abstract

The standard protocols for testing whether a bowler is extending his/her arm illegally (by more than 15°) during the period from upper arm horizontal to ball release leave some flexibility of interpretation as to exactly how the axes should be defined. The purpose of this paper was to examine the effect of different elbow axis definitions on the flexion-extension and abduction-adduction angles calculated.