INTERLIMB ASYMMETRIES HAVE BEEN A POPULAR TOPIC OF INVESTIGATION IN THE STRENGTH AND CONDITIONING LITERATURE. RECENTLY, NUMEROUS EQUATIONS HAVE BEEN HIGHLIGHTED THAT CAN QUANTIFY THESE BETWEEN-LIMB DIFFERENCES. HOWEVER, NO DISTINCTION WAS PROVIDED ON WHETHER THEIR USE WAS APPLICABLE TO BOTH BILATERAL AND UNILATERAL TESTS. THIS ARTICLE PROVIDES A FRAMEWORK FOR SELECTING THE MOST APPROPRIATE ASYMMETRY EQUATION BASED ON THE SELECTED TEST METHOD, ENSURING ACCURATE CALCULATION AND INTERPRETATION. IN ADDITION, CONSIDERATIONS FOR DATA ANALYSIS HAVE ALSO BEEN INCLUDED AS A GUIDE FOR PRACTITIONERS ON THE RELEVANCE OF MONITORING INTERLIMB DIFFERENCES LONGITUDINALLY.
1School of Science and Technology, London Sport Institute, Middlesex University, London, United Kingdom;
2Athlete Health and Performance Research Centre, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar; and
3Department of Sport and Exercise Sciences, University of Chichester, West Sussex, United Kingdom
Address correspondence to Chris Bishop, C.Bishop@mdx.ac.uk.
Conflicts of Interest and Source of Funding: The authors report no conflicts of interest and no source of funding.
Chris Bishopis a senior lecturer in strength and conditioning at the London Sport Institute, Middlesex University where he is also the Programme Leader for the MSc in Strength and Conditioning.
Paul Readis a clinical researcher at the Athlete Health and Performance Research Centre at Aspetar Orthopaedic and Sports Medicine Hospital.
Jason Lakeis a Reader in Sport and Exercise Biomechanics at the University of Chichester, Sussex, UK where he is also the Programme Leader for the MSc in Strength and Conditioning.
Shyam Chavdais a strength and conditioning coach and technical associate at the London Sport Institute, Middlesex University.
Anthony Turneris the director of postgraduate programmes in sport at the London Sport Institute, Middlesex University.