1 1 Lower Body Symmetry and Running Performance in Elite Jamaican Track and Field 2 Athletes 3 Short Title: Symmetry in Elite Jamaican Athletes 4 5 Robert Trivers's, Bernhard Fink'-, Mark Russell3, Kristofor McCarty*, Bruce James5, & Brian G. 6 Patestis* 7 8 'Graduate Program in Ecology and Evolution, Rutgers University, New Brunswick, New Jersey, 9 08901, USA. 10 2Courant Research Centre Evolution of Social Behavior & Institute of Psychology, University of 11 Gottingen, Kellnenveg 6, 37077 Gottingen, Germany. 12 ;Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne, NEI 8ST, 13 UK. 14 *Department of Psychology, Faculty of Health and Life Sciences, Northumbria University, 15 Newcastle-upon-Tyne, NE1 8ST, UK. 16 5MVP Track and Field Club, 237 Old Hope Road, University of Technology, Kingston 6, 17 Jamaica. 18 *Brian G. Palestis, Department of Biological Sciences, Wagner College, Staten Island, New 19 York, 10301, USA. 20 21 *Correspondence to: 22 23 EFTA01202924