TY - RPRT TI - Training and match running distances and perceived exertion at sea-level and altitude in elite North American soccer: A natural longitudinal cross-over case series. AU - Draper, G. AU - Chesterton, P. AU - Thompson, T. AU - Wright, M. PY - 2025 DO - 10.1101/2025.07.13.664605 UR - https://www.biorxiv.org/content/10.1101/2025.07.13.664605v1 ID - 10.1101/2025.07.13.664605 ER -