Quantification of Seasonal-Long Physical Load in Soccer Players With Different Starting Status From the English Premier League: Implications for Maintaining Squad Physical Fitness.

PURPOSE To quantify the accumulative training and match load during an annual season in English Premier League soccer players classified as starters (n = 8, started ≥60% of games), fringe players (n = 7, started 30-60% of games) and nonstarters (n = 4, started <30% of games). Methods Players were monitored during all training sessions and games completed in the 2013-14 season with load quantified using global positioning system and Prozone technology, respectively. RESULTS When including both training and matches, total duration of activity (10,678 ± 916, 9955 ± 947, 10,136 ± 847 min; P = .50) and distance covered (816.2 ± 92.5, 733.8 ± 99.4, 691.2 ± 71.5 km; P = .16) were not different between starters, fringe players, and nonstarters, respectively. However, starters completed more (all P < .01) distance running at 14.4-19.8 km/h (91.8 ± 16.3 vs 58.0 ± 3.9 km; effect size [ES] = 2.5), high-speed running at 19.9-25.1 km/h (35.0 ± 8.2 vs 18.6 ± 4.3 km; ES = 2.3), and sprinting at >25.2 km/h (11.2 ± 4.2 vs 2.9 ± 1.2 km; ES = 2.3) than nonstarters. In addition, starters also completed more sprinting (P < .01, ES = 2.0) than fringe players, who accumulated 4.5 ± 1.8 km. Such differences in total high-intensity physical work done were reflective of differences in actual game time between playing groups as opposed to differences in high-intensity loading patterns during training sessions. Conclusions Unlike total seasonal volume of training (ie, total distance and duration), seasonal high-intensity loading patterns are dependent on players' match starting status, thereby having potential implications for training program design.

[1]  Rupish Arora,et al.  Global Positioning System , 2017 .

[2]  Martin Buchheit,et al.  Monitoring accelerations with GPS in football: time to slow down? , 2014, International journal of sports physiology and performance.

[3]  P. Krustrup,et al.  Match performance of high-standard soccer players with special reference to development of fatigue , 2003, Journal of sports sciences.

[4]  M. Gibala,et al.  Is high-intensity interval training a time-efficient exercise strategy to improve health and fitness? , 2014, Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme.

[5]  Barry Drust,et al.  Seasonal training-load quantification in elite English premier league soccer players. , 2015, International journal of sports physiology and performance.

[6]  Adam Allen,et al.  Integrating different tracking systems in football: multiple camera semi-automatic system, local position measurement and GPS technologies , 2014, Journal of sports sciences.

[7]  P. Bradley,et al.  The Evolution of Physical and Technical Performance Parameters in the English Premier League , 2014, International Journal of Sports Medicine.

[8]  Matthew C. Varley,et al.  Validity and reliability of GPS for measuring instantaneous velocity during acceleration, deceleration, and constant motion , 2012, Journal of sports sciences.

[9]  Paul B. Laursen,et al.  The Scientific Basis for High-Intensity Interval Training , 2002, Sports medicine.

[10]  Julen Castellano,et al.  Reliability and Accuracy of 10 Hz GPS Devices for Short-Distance Exercise. , 2011, Journal of sports science & medicine.

[11]  R. Maddison,et al.  Global positioning system: a new opportunity in physical activity measurement , 2009, The international journal of behavioral nutrition and physical activity.

[12]  Ermanno Rampinini,et al.  High-intensity training in football. , 2009, International journal of sports physiology and performance.

[13]  P. Krustrup,et al.  Physical demands during an elite female soccer game: importance of training status. , 2005, Medicine and science in sports and exercise.

[14]  Jonathan Bloomfield,et al.  Physical Demands of Different Positions in FA Premier League Soccer. , 2007, Journal of sports science & medicine.

[15]  F. M. Iaia,et al.  Reduced volume but increased training intensity elevates muscle Na+-K+ pump alpha1-subunit and NHE1 expression as well as short-term work capacity in humans. , 2008, American journal of physiology. Regulatory, integrative and comparative physiology.

[16]  P. Krustrup,et al.  Physical and metabolic demands of training and match-play in the elite football player , 2006, Journal of sports sciences.

[17]  A. Ascensão,et al.  Individual Match Playing Time During the Season Affects Fitness-Related Parameters of Male Professional Soccer Players , 2011, Journal of strength and conditioning research.

[18]  S. Berthoin,et al.  The Effect of In‐Season, High‐Intensity Interval Training in Soccer Players , 2004, Journal of strength and conditioning research.

[19]  Tim J Gabbett,et al.  Training and game loads and injury risk in elite Australian footballers. , 2014, Journal of strength and conditioning research.

[20]  R. Aughey,et al.  Acceleration Profiles in Elite Australian Soccer , 2013, International Journal of Sports Medicine.

[21]  V. Di Salvo,et al.  Performance Characteristics According to Playing Position in Elite Soccer , 2006, International journal of sports medicine.

[22]  E. Rampinini,et al.  Accuracy of GPS Devices for Measuring High-intensity Running in Field-based Team Sports , 2014, International Journal of Sports Medicine.

[23]  C. Castagna,et al.  Variation in top level soccer match performance. , 2007, International journal of sports medicine.

[24]  Di Salvo Valter,et al.  Validation of Prozone ®: A new video-based performance analysis system , 2006 .

[25]  Peter Krustrup,et al.  The yo-yo intermittent recovery test: physiological response, reliability, and validity. , 2003, Medicine and science in sports and exercise.

[26]  Grégoire P. Millet,et al.  The Effect of Two Speed Endurance Training Regimes on Performance of Soccer Players , 2015, PloS one.

[27]  Matthew Weston,et al.  The Interchangeability of Global Positioning System and Semiautomated Video-Based Performance Data During Elite Soccer Match Play , 2011, Journal of strength and conditioning research.

[28]  Barry Drust,et al.  An Intensive Winter Fixture Schedule Induces a Transient Fall in Salivary IgA in English Premier League Soccer Players , 2014, Research in sports medicine.

[29]  P. Krustrup,et al.  High-intensity running in English FA Premier League soccer matches , 2009, Journal of sports sciences.

[30]  B. Drust,et al.  Effects of high-intensity running training on soccer-specific fitness in professional male players. , 2014, Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme.

[31]  T. Reilly A motion analysis of work-rate in different positional roles in professional football match-play , 1976 .

[32]  Tim J Gabbett,et al.  Influence of training and match intensity on injuries in rugby league , 2004, Journal of sports sciences.

[33]  G Atkinson,et al.  Monitoring Training in Elite Soccer Players: Systematic Bias between Running Speed and Metabolic Power Data , 2013, International Journal of Sports Medicine.

[34]  Aaron J. Coutts,et al.  Validity and reliability of GPS devices for measuring movement demands of team sports. , 2010, Journal of science and medicine in sport.

[35]  Aaron J Coutts,et al.  Variability of GPS units for measuring distance in team sport movements. , 2010, International journal of sports physiology and performance.