Aquino, R, Carling, C, Palucci Vieira, LH, Martins, G, Jabor, G, Machado, J, Santiago, P, Garganta, J, and Puggina, E. Influence of situational variables, team formation, and playing position on match running performance and social network analysis of brazilian professional soccer players.J Strength Cond Res34(3): 808–817, 2020—The purpose of this study was to investigate the independent and interactive effects of situational variables, opposition team formation, and playing position on running performance and network analysis in Brazilian professional soccer players (n= 22). Global positioning system technology was used to determine total distance covered, mean speed, maximum running speed, and distance covered in 6 speed ranges. Social network analysis was used to assess interpersonal coordination (team interactions characterized as successful passes [n= 3,033] between teammates). Observations of match running performance (n= 129) and network analysis (n= 108) were obtained. The main results were: (a) no interactive effects between team formation and playing position were observed for running and network variables (unclear to possibly); (b) matches played at home or against “weaker” opponents presented greater running demands and individual/global metrics of network analysis (likely to almost certain); (c) match outcome demonstrated influence only for running performance; matches in which the reference team won resulted in higher values than in matches lost; (d) when the reference team competed in 1-4-4-2 formation, this resulted in greater running demands than 1-4-2-3-1 formation (likely to almost certain); (e) reduced values of running performance variables were reported in central defenders compared with other positions. Central/external midfielders reported greater closeness/betweenness centrality, outdegree, and eigenvector compared with central/external defenders and forwards (likely to almost certain). The results from this study provide practical information to potentially impact on physical, tactical, and technical training.

Aquino, R, Munhoz Martins, GH, Palucci Vieira, LH, and Menezes, RP. Influence of match location, quality of opponents and match status on movement patterns in brazilian professional football players. J Strength Cond Res 31(8): 2155–2161, 2017—The aim of this study was to examine the independent and interactive effects of match location, quality of opponents, and match status on the movement patterns in a professional Brazilian football team. Sixteen matches of the fourth division Brazilian Championship of 2015 were analyzed during the competitive stages (classifier, 8 matches; octave-finals, 2 matches; quarterfinals, 2 matches; semifinals, 2 matches; and finals, 2 matches). A 5-Hz Global Positioning System Sports QSTARZ was used to record the total distance (TD), maximum speed (V_MAX), average speed (V_AVERAGE), and frequency of high-intensity activities (HIA). The Student's t-test for independent samples showed significantly higher values (p ≤ 0.05) of V_MAX, V_AVERAGE, and HIA in home matches when compared with away matches. Comparing the quality of opponents, statistically higher values of TD, V_MAX, and HIA were found when the team played against strong opponents. Regarding match status, 1-way analysis of variance demonstrated that when the team won presented significantly higher values of TD, V_MAX, V_AVERAGE, and HIA compared with matches when the team lost. There were no substantial interactive effects of match situational variables on movement patterns. Finally, multiple linear regression showed that the variable quality of opponents has a higher relative contribution to the variance in HIA (19%) than match status (16%) and match location (4%). In particular, the results indicate that physical performance in professional football is influenced by match situational variables, resulting in a change in the team's style of play.

The aim of this study was to systematically review the current literature that has investigated the relationships between anthropometric and physical fitness characteristics and match-play running demands in female and male soccer players at youth and senior levels. Using PRISMA guidelines, four databases were searched: PubMed/NCBI, Web of Science and SPORTDiscus. Twenty-seven articles were selected resulting in a sample of 991 players (687 youth and 304 senior). Three studies related anthropometric measures to running demands during the matches and reported poor relationships (R² = 4-36%). Incremental treadmill tests performed in laboratory settings showed large-to-very large correlations with total distance covered and/or high-intensity running activity during matches (R² = 20-50%). Values for the Yo-Yo Intermittent recovery test levels 1 and 2 were associated with total distance covered and high-intensity running activity across all studies. This study collected scientific evidence that can aid sport science and coaching practitioners in understanding the construct validity of anthropometric and laboratory- and field-based assessments.

This study on the 2018 Russia FIFA World Cup examined: i) the potential variations of ball possession, match running performance, player prominence, team network properties according to match outcome and playing formation; and ii) the relationships between player prominence and total distance covered according to team ball possession. Sixty-one matches were analysed (n = 988 player observations). Running performance was examined using total distance covered in (TDIP) and out of possession, and that travelled in different speed-range categories. Player prominence (micro) and team network properties (macro) were obtained using social network analysis where completed passes between teammates were counted (n = 28,019 passes). Main findings were: i) with the exception of clustering coefficients which indicate the level of interconnectivity between close teammates (win = draw > loss), match outcome was unaffected by ball possession, running and network measures; iii) teams employing a1‒4‒2‒3‒1 formation reported greater values for ball possession, TDIP, and micro/macro network measures compared to those playing 1‒4‒4‒2 and 1‒4‒3‒3 formations; iv) TDIP tended to be related to most player prominence variables, even though the magnitude of coefficients varied considerably according to network measures and playing positions. This study has provided additional insights into elite soccer match-play performance.