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Purpose: This study examined the relationship of prematch travel and in-camp training on ensuing physical and technical match performance of footballers (soccer) competing for a national team. Methods: Match running and technical performance data were obtained from 68 national-team footballers competing in international matches (N = 108). Match performance data were aligned with the confirmed travel durations, time-zone change, travel direction, and time between arrival and kickoff for the travel to the match. In addition, in-camp training load from the 3 days prior to national-team matches was also collated. Linear mixed models assessed relationships between travel and training measures with physical and technical match performance outcomes. Results: Travel variables explained little variance in outcomes (R2 =.02–.16). Traveling eastward was associated with an increase in total (P =.042) and very high-speed distance (P =.030) in matches and a 5% decrease in pass accuracy (P =.012). Greater time-zone difference was associated with increased match decelerations (P =.027), while arriving later for matches was associated with increased total (P =.041) tackles. Increases in training high-speed distance were associated with increases in match high-speed distance (P =.004) and number of decelerations (P <.001). An increase in training total distance was associated with a decrease in match decelerations (P =.002). Conclusions: Prematch travel appeared to have minimal effects on physical and technical performance in this national team. Training loads prior to matches may have some relationship with match running performance, and, thus, readiness to train should be a priority for athletes arriving in national-team camps. [ABSTRACT FROM AUTHOR]

The aim of this study was to profile the physical-performance related match-data of players (n = 3211) in five leagues (Bundesliga: BU, Ligue1: L1, La-Liga: LL, Premier-League: PL, and Serie-A: SA), regarding five positions: central-defender (CD), fullback (FB), central-midfielder (CM), winger (WN), and forward (FW). The physical-variables were: total-distance (TD), distance at 15–20 km·h−1 (RUNd), distance and efforts at 20–25 km·h−1 (nHSR, HSRd) and > 25 km·h−1 (nSPR, SPRd), accelerations at 1.5–3.0 m·s−2 (mACC), and > 3.0 m·s−2 (hACC), decelerations at −1.5/-3.0 m·s−2 (mDEC), and <-3 m·s−2 (hDEC), and peak-velocity (VMAX). Principal-Component (PC), Cluster and a Mixed-Model analysis were implemented. Results: 1) two PC (explained variance > 75%) grouped variables related to the amount of activity (PC1 = TD, RUNd, nHSR, HSRd,m ACC and mDEC) and intensity (PC2 = nSPR, SPRd, VMAX, hACC and hDEC); 2) CD and CM, in any league, were mainly grouped in clusters 1 and 4, respectively, while the rest FB, FW and WN, were distributed in clusters 3 and 5; 3) the SA and PL leagues, the FW, FB and WN positions and clusters 4 and 5 were profiles closest to the intensity. Knowing physical profiles could be useful both for the recruitment department of the club and for the analysts in those teams that take part in international competitions. [ABSTRACT FROM AUTHOR]