Measuring eccentric hip adductor strength during the Copenhagen adduction exercise: A proof-of-concept and test re-test reliability study.

Objectives: To describe a novel method for measuring eccentric hip adductor (EHAD) strength during the Copenhagen adduction exercise (CAE) and investigate the test re-test reliability of this measure.

Design: Test re-test reliability study.

Participants: Twenty male athletes aged 24 ± 6 years participated in two data collection sessions 7 ± 2 days apart.