Comparing Apples and Pears? Evaluating the Interchangeability of 3 Different Positions for Hip Abduction and Adduction Strength Testing in Academy Footballers. - O'Brien, James; Huthöfer, Markus; Santner, Emanuel; Becker, Tatjana; Stöggl, Thomas (Journal of Athletic Training (KnowledgeWorks Global, Ltd), 2025)