RT info:eu-repo/semantics/article T1 Influence of Prematch Perceived Wellness on High-Intensity Locomotor Activities of Professional Soccer Players During in-Season Matches A1 Marqués-Jiménez, Diego A1 Quílez-Larrayad, Pablo A1 Izquierdo, José M. AB Purpose : The aim of this study was to determine the influence of prematch perceived wellness on high-intensity locomotor activities of professional soccer players during in-season matches. Methods : Twenty male soccer players (26.74 [3.27] y; 179.77 [6.06] cm; 76.72 [9.33] kg), members of a professional soccer team, participated in this longitudinal study. Data collection was conducted during the competitive period of 1 season and involved the 34 league official matches. Perceived wellness was assessed individually 3 hours before each match using a 5-point Likert questionnaire, and external loads during matches were monitored using global navigation satellite system devices. Each wellness item (ie, fatigue, delayed-onset muscle soreness [DOMS], sleep, and stress) was considered as an individual wellness component and analyzed as raw score, team z score, and individualized z score. Different random forest regression models and linear mixed models were carried out for statistical analysis. Results : Individualized z scores should be considered the most important variables to estimate the proportion of external-load variation during match play, but the proportion of the variance that may be explained from the prematch perceived wellness suggests a limited capacity in relation to external-load measures. Only individualized z scores of DOMS showed significant effects on sprint running distance (>24.0 km·h −1 ) and number of sprints (>24.0 km·h −1 ) during matches ( P < .05). Conclusions : Sprint performance of professional soccer players during in-season matches may be slightly influenced by the players’ day-to-day variation of prematch perceived DOMS. SN 1555-0265 YR 2025 FD 2025 LK https://uvadoc.uva.es/handle/10324/82012 UL https://uvadoc.uva.es/handle/10324/82012 LA eng NO Marqués-Jiménez, D., Quílez-Larrayad, P., & Izquierdo, J. M. (2025). Influence of Prematch Perceived Wellness on High-Intensity Locomotor Activities of Professional Soccer Players During in-Season Matches. International Journal of Sports Physiology and Performance, 20(2), 192-199. https://doi.org/10.1123/ijspp.2024-0249 DS UVaDOC RD 22-ene-2026