Accelerometry-Workload Indices Concerning Different Levels of Participation during Congested Fixture Periods in Professional Soccer: A Pilot Study Conducted over a Full Season

Filipe Manuel Clemente, Rui Silva, Yung-Sheng Chen, Rodrigo Aquino, Gibson Moreira Praça, Julen Castellano, Hadi Nobari, Bruno Mendes, Thomas Rosemann and Beat Knechtle
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Filipe Manuel Clemente: Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal
Rui Silva: Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal
Yung-Sheng Chen: Department of Exercise and Health Sciences, University of Taipei, Taipei 11153, Taiwan
Rodrigo Aquino: Center of Physical Education and Sports, Department of Sports, Federal University of Espírito Santo, Vitoria 29075-910, Brazil
Gibson Moreira Praça: Sports Department, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
Julen Castellano: Department of Physical Education and Sport, University of Basque Country UPV EHU, 48940 Vitoria, Spain
Hadi Nobari: Department of Exercise Physiology, Faculty of Sport Sciences, University of Isfahan, Isfahan 81746-73441, Iran
Bruno Mendes: Faculty of Human Kinetics, University of Lisboa, 1649-004 Lisboa, Portugal
Thomas Rosemann: Institute of Primary Care, University of Zurich, 8091 Zurich, Switzerland
Beat Knechtle: Institute of Primary Care, University of Zurich, 8091 Zurich, Switzerland

IJERPH, 2021, vol. 18, issue 3, 1-9

Abstract: The aim of this study was to analyze the variations of acute load (AL), acute: chronic workload ratio (ACWR), training monotony (TM), and training strain (TS) of accelerometry-based GPS measures in players who started in three matches (S3M), two matches (S2M), and one match (S1M) during congested weeks. Nineteen elite professional male players from a Portuguese team (age: 26.5 ± 4.3 years) were monitored daily using global positioning systems (GPSs) over a full season (45 weeks). Accelerometry-derived measures of high metabolic load distance (HMLD), high accelerations (HA), and high decelerations (HD) were collected during each training session and match. Seven congested weeks were classified throughout the season, and the participation of each player in matches played during these weeks was codified. The workload indices of AL (classified as ACWR, TM, and TS) were calculated weekly for each player. The AL of HMLD was significantly greater for S2M than S1M (difference = 42%; p = 0.002; d = 0.977) and for S3M than S1M (difference = 44%; p = 0.001; d = 1.231). Similarly, the AL of HA was significantly greater for S2M than S1M (difference = 25%; p = 0.023; d = 0.735). The TM of HD was significantly greater for S2M than S3M (difference = 25%; p = 0.002; d = 0.774). Accelerometry-based measures were dependent on congested fixtures. S2M had the greatest TS values, while S3M had the greatest TM.

Keywords: association football; performance; GPS; external load; load monitoring; sports science (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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