Improving Base Running Diagnostics With Foot Pod Technology: Intersession Reliability of Linear and Curvilinear Running Performance

ABSTRACT: Martínez-Rodríguez, JA, Crotin, RL, Neville, J, Barcelo, RA, and Cronin, JB. Improving base running diagnostics with foot pod technology: Intersession reliability of linear and curvilinear running performance. J Strength Cond Res 40(7): e714-e720, 2026-The purpose of this study was to determine the intersession reliability of foot pod technology for quantifying kinematic measures over the 54.7-m straight-line sprint (linear) and home-to-second base sprint (curvilinear). Twelve, trained male high school baseball position players, performed 3 identical sessions separated by at least 2 days. Eight kinematic measures (maximum speed, average speed and right and left ground contact time, stride length, push-off, and impact) were quantified over 2 linear and 2 curvilinear trials, which were divided into segments-home to first, first to second, and home to second, for a total of 60 comparisons across 3 testing occasions. There was no evidence (p > 0.05) of systematic change in any of the variables between sessions, with 91% of the mean percent changes