Metabolic demands and physical performance in football: a position-specific analysis of energy system utilization
DOI:
https://doi.org/10.47197/retos.v69.114722Keywords:
Aerobic System, anaerobic System, energy System Utilization, metabolic Demands, position-Specific TrainingAbstract
Introduction: Football demands a balance of aerobic and anaerobic energy systems, varying by playing position. Midfielders rely on aerobic endurance for sustained movement, while strikers and wingers depend on anaerobic pathways for repeated sprints. Defenders and goalkeepers require anaerobic power for aerial duels and explosive actions. Understanding these demands is essential for optimizing training.
Objective: This study analyzed the metabolic demands and physical performance of collegiate football players across positions, focusing on endurance, speed, vertical jump, and agility.
Methodology: Forty collegiate football players (goalkeepers, defenders, midfielders, strikers) underwent field tests: the 12-Minute Cooper Test (endurance), 50-Meter Sprint Test (speed), Sargent Jump Test (anaerobic power), and Illinois Agility Test. One-way ANOVA and post hoc analysis assessed positional differences.
Results: Significant differences (p < 0.001) were found. Midfielders had superior endurance (3306.6 ± 80.2 mt), strikers were fastest (6.43 ± 0.09 sec), goalkeepers had the highest vertical jump (64.6 ± 1.07 cm), and strikers displayed the best agility (14.28 ± 0.58 sec).
Discussion: Results confirm distinct physiological profiles. Midfielders prioritize endurance, while strikers and defenders rely on anaerobic power and speed.
Conclusion: Position-specific training is crucial for optimizing performance and reducing injury risk. Future research should integrate match-specific GPS and metabolic profiling for deeper insights.
References
Akenhead, R., & Nassis, G. P. (2016). Training Load and Player Monitoring in High-Level Foot-ball: Current Practice and Perceptions. International Journal of Sports Physiology and Perfor-mance, 11(5), 587–593. https://doi.org/10.1123/ijspp.2015-0331
Arnason, A., Sigurdsson, S. B., Gudmundsson, A., Holme, I., Engebretsen, L., & Bahr, R. (2004). Physical fitness, injuries, and team performance in soccer. Medicine and Science in Sports and Exercise, 36(2), 278–285. https://doi.org/10.1249/01.MSS.0000113478.92945.CA
Bangsbo, J., Iaia, F. M., & Krustrup, P. (2007). Metabolic response and fatigue in soccer. International Journal of Sports Physiology and Performance, 2(2), 111–127. https://doi.org/10.1123/ijspp.2.2.111
Bangsbo, J., Iaia, F. M., & Krustrup, P. (2008). The Yo-Yo intermittent recovery test: A useful tool for evaluation of physical performance in intermittent sports. Sports Medicine (Auckland, N.Z.), 38(1), 37–51. https://doi.org/10.2165/00007256-200838010-00004
Bangsbo, J., Mohr, M., & Krustrup, P. (2006a). Physical and metabolic demands of training and match-play in the elite football player. Journal of Sports Sciences, 24(7), 665–674. https://doi.org/10.1080/02640410500482529
Bangsbo, J., Mohr, M., & Krustrup, P. (2006b). Physical and metabolic demands of training and match-play in the elite football player. Journal of Sports Sciences, 24(7), 665–674. https://doi.org/10.1080/02640410500482529
Baptista, I., Johansen, D., Seabra, A., & Pettersen, S. A. (2018). Position specific player load during match-play in a professional football club. PloS One, 13(5), e0198115. https://doi.org/10.1371/journal.pone.0198115
Bishop, D., Girard, O., & Mendez-Villanueva, A. (2011). Repeated-sprint ability - part II: Recommenda-tions for training. Sports Medicine (Auckland, N.Z.), 41(9), 741–756. https://doi.org/10.2165/11590560-000000000-00000
Bloomfield, J., Polman, R., & O’Donoghue, P. (2007a). Physical Demands of Different Positions in FA Premier League Soccer. Journal of Sports Science & Medicine, 6, 63–70.
Bloomfield, J., Polman, R., & O’Donoghue, P. (2007b). Physical Demands of Different Positions in FA Premier League Soccer. Journal of Sports Science & Medicine, 6(1), 63–70.
Boone, J., Vaeyens, R., Steyaert, A., Vanden Bossche, L., & Bourgois, J. (2012). Physical fitness of elite Belgian soccer players by player position. Journal of Strength and Conditioning Research, 26(8), 2051–2057. https://doi.org/10.1519/JSC.0b013e318239f84f
Bradley, P. S., Carling, C., Archer, D., Roberts, J., Dodds, A., Di Mascio, M., Paul, D., Diaz, A. G., Peart, D., & Krustrup, P. (2011). The effect of playing formation on high-intensity running and technical profiles in English FA Premier League soccer matches. Journal of Sports Sciences, 29(8), 821–830. https://doi.org/10.1080/02640414.2011.561868
Bradley, P. S., Carling, C., Gomez Diaz, A., Hood, P., Barnes, C., Ade, J., Boddy, M., Krustrup, P., & Mohr, M. (2013). Match performance and physical capacity of players in the top three competitive standards of English professional soccer. Human Movement Science, 32(4), 808–821. https://doi.org/10.1016/j.humov.2013.06.002
Bradley, P. S., Lago-Peñas, C., Rey, E., & Gomez Diaz, A. (2013). The effect of high and low percentage ball possession on physical and technical profiles in English FA Premier League soccer matches. Journal of Sports Sciences, 31(12), 1261–1270. https://doi.org/10.1080/02640414.2013.786185
Bradley, P. S., Sheldon, W., Wooster, B., Olsen, P., Boanas, P., & Krustrup, P. (2009). High-intensity run-ning in English FA Premier League soccer matches. Journal of Sports Sciences, 27(2), 159–168. https://doi.org/10.1080/02640410802512775
Buchheit, M., Allen, A., Poon, T. K., Modonutti, M., Gregson, W., & Di Salvo, V. (2014). Integrating differ-ent tracking systems in football: Multiple camera semi-automatic system, local position meas-urement and GPS technologies. Journal of Sports Sciences, 32(20), 1844–1857. https://doi.org/10.1080/02640414.2014.942687
Buchheit, M., & Laursen, P. B. (2013a). High-intensity interval training, solutions to the programming puzzle: Part I: cardiopulmonary emphasis. Sports Medicine (Auckland, N.Z.), 43(5), 313–338. https://doi.org/10.1007/s40279-013-0029-x
Buchheit, M., & Laursen, P. B. (2013b). High-intensity interval training, solutions to the programming puzzle: Part I: cardiopulmonary emphasis. Sports Medicine (Auckland, N.Z.), 43(5), 313–338. https://doi.org/10.1007/s40279-013-0029-x
Carling, C., Bloomfield, J., Nelsen, L., & Reilly, T. (2008). The role of motion analysis in elite soccer: Con-temporary performance measurement techniques and work rate data. Sports Medicine (Auck-land, N.Z.), 38(10), 839–862. https://doi.org/10.2165/00007256-200838100-00004
Castagna, C., D’Ottavio, S., & Abt, G. (2003a). Activity profile of young soccer players during actual match play. Journal of Strength and Conditioning Research, 17(4), 775–780. https://doi.org/10.1519/1533-4287(2003)017<0775:apoysp>2.0.co;2
Castagna, C., D’Ottavio, S., & Abt, G. (2003b). Activity profile of young soccer players during actual match play. Journal of Strength and Conditioning Research, 17(4), 775–780. https://doi.org/10.1519/1533-4287(2003)017<0775:apoysp>2.0.co;2
Castagna, C., Ganzetti, M., Ditroilo, M., Giovannelli, M., Rocchetti, A., & Manzi, V. (2013). Concurrent va-lidity of vertical jump performance assessment systems. Journal of Strength and Conditioning Research, 27(3), 761–768. https://doi.org/10.1519/JSC.0b013e31825dbcc5
Chaouachi, A., Manzi, V., Chaalali, A., Wong, D. P., Chamari, K., & Castagna, C. (2012a). Determinants analysis of change-of-direction ability in elite soccer players. Journal of Strength and Condition-ing Research, 26(10), 2667–2676. https://doi.org/10.1519/JSC.0b013e318242f97a
Chaouachi, A., Manzi, V., Chaalali, A., Wong, D. P., Chamari, K., & Castagna, C. (2012b). Determinants analysis of change-of-direction ability in elite soccer players. Journal of Strength and Condition-ing Research, 26(10), 2667–2676. https://doi.org/10.1519/JSC.0b013e318242f97a
Dellal, A., Chamari ,Karim, Wong ,Del P., Ahmaidi ,Said, Keller ,Dominique, Barros ,Ricardo, Bisciotti ,Gian Nicola, & and Carling, C. (2011). Comparison of physical and technical performance in Eu-ropean soccer match-play: FA Premier League and La Liga. European Journal of Sport Science, 11(1), 51–59. https://doi.org/10.1080/17461391.2010.481334
Dellal, A., Hill-Haas, S., Lago-Penas, C., & Chamari, K. (2011). Small-sided games in soccer: Amateur vs. professional players’ physiological responses, physical, and technical activities. Journal of Strength and Conditioning Research, 25(9), 2371–2381. https://doi.org/10.1519/JSC.0b013e3181fb4296
Deprez, D., Fransen, J., Boone, J., Lenoir, M., Philippaerts, R., & Vaeyens, R. (2015). Characteristics of high-level youth soccer players: Variation by playing position. Journal of Sports Sciences, 33(3), 243–254. https://doi.org/10.1080/02640414.2014.934707
Di Mascio, M., & Bradley, P. S. (2013). Evaluation of the most intense high-intensity running period in English FA premier league soccer matches. Journal of Strength and Conditioning Research, 27(4), 909–915. https://doi.org/10.1519/JSC.0b013e31825ff099
Di Salvo, V., Baron, R., González-Haro, C., Gormasz, C., Pigozzi, F., & Bachl, N. (2010). Sprinting analysis of elite soccer players during European Champions League and UEFA Cup matches. Journal of Sports Sciences, 28(14), 1489–1494. https://doi.org/10.1080/02640414.2010.521166
Di Salvo, V., Baron, R., Tschan, H., Calderon Montero, F. J., Bachl, N., & Pigozzi, F. (2007). Performance characteristics according to playing position in elite soccer. International Journal of Sports Med-icine, 28(3), 222–227. https://doi.org/10.1055/s-2006-924294
Faude, O., Koch, T., & Meyer, T. (2012a). Straight sprinting is the most frequent action in goal situations in professional football. Journal of Sports Sciences, 30(7), 625–631. https://doi.org/10.1080/02640414.2012.665940
Faude, O., Koch, T., & Meyer, T. (2012b). Straight sprinting is the most frequent action in goal situations in professional football. Journal of Sports Sciences, 30(7), 625–631. https://doi.org/10.1080/02640414.2012.665940
Gil, S. M., Gil, J., Ruiz, F., Irazusta, A., & Irazusta, J. (2007). Physiological and anthropometric characteris-tics of young soccer players according to their playing position: Relevance for the selection process. Journal of Strength and Conditioning Research, 21(2), 438–445. https://doi.org/10.1519/R-19995.1
Haugen, T. A., Tønnessen, E., & Seiler, S. (2012). Speed and countermovement-jump characteristics of elite female soccer players, 1995-2010. International Journal of Sports Physiology and Perfor-mance, 7(4), 340–349. https://doi.org/10.1123/ijspp.7.4.340
Haugen, T. A., Tønnessen, E., & Seiler, S. (2013). Anaerobic performance testing of professional soccer players 1995-2010. International Journal of Sports Physiology and Performance, 8(2), 148–156. https://doi.org/10.1123/ijspp.8.2.148
Hill-Haas, S. V., Dawson, B., Impellizzeri, F. M., & Coutts, A. J. (2011). Physiology of small-sided games training in football: A systematic review. Sports Medicine (Auckland, N.Z.), 41(3), 199–220. https://doi.org/10.2165/11539740-000000000-00000
Impellizzeri, F. M., Marcora, S. M., Castagna, C., Reilly, T., Sassi, A., Iaia, F. M., & Rampinini, E. (2006a). Physiological and performance effects of generic versus specific aerobic training in soccer players. International Journal of Sports Medicine, 27(6), 483–492. https://doi.org/10.1055/s-2005-865839
Impellizzeri, F. M., Marcora, S. M., Castagna, C., Reilly, T., Sassi, A., Iaia, F. M., & Rampinini, E. (2006b). Physiological and performance effects of generic versus specific aerobic training in soccer players. International Journal of Sports Medicine, 27(6), 483–492. https://doi.org/10.1055/s-2005-865839
Ingebrigtsen, J., Dillern, T., & Shalfawi, S. A. (2011). Aerobic capacities and anthropometric characteris-tics of elite female soccer players. Journal of Strength and Conditioning Research, 25(12), 3352–3357. https://doi.org/10.1519/JSC.0b013e318215f763
Jaworska, L., Hawrylak, A., Burzyński, B., & Szczepańska-Gieracha, J. (2018). Effect of progressive mus-cle relaxation on pain threshold and effectiveness of footballers’ training. Human Movement, 16(4), 225–228. https://doi.org/10.1515/humo-2015-0043
Kalapotharakos, V. I., Ziogas, G., & Tokmakidis, S. P. (2011). Seasonal aerobic performance variations in elite soccer players. Journal of Strength and Conditioning Research, 25(6), 1502–1507. https://doi.org/10.1519/JSC.0b013e3181da85a9
Karmakar, D., Saha, S., Elayaraja, M., Das, A., Sharma, Borah, P., Gogoi, L., Gogoi, H., & Govindasamy, K. (2024). Uncovering Determinants of Victory and Defeat in Men’s UEFA Champions League: An Analytical Exploration Using Logistic Regression. Studia Sportiva, 18, 51–62. https://doi.org/10.5817/StS2024-2-5
Konefał, M., Chmura, P., Zając, T., Chmura, J., Kowalczuk, E., & Andrzejewski, M. (2019). Evolution of technical activity in various playing positions, in relation to match outcomes in professional soccer. Biology of Sport, 36(2), 181–189. https://doi.org/10.5114/biolsport.2019.83958
Koropanovski, N., Orr, R. M., Dopsaj, M., Heinrich, K. M., Dawes, J. J., & Kukic, F. (2022). Effects of Maxi-mal and Submaximal Anaerobic and Aerobic Running on Subsequent Change-of-Direction Speed Performance among Police Students. Biology, 11(5), 767. https://doi.org/10.3390/biology11050767
Krustrup, P., Mohr, M., Steensberg, A., Bencke, J., Kjaer, M., & Bangsbo, J. (2006a). Muscle and blood me-tabolites during a soccer game: Implications for sprint performance. Medicine and Science in Sports and Exercise, 38(6), 1165–1174. https://doi.org/10.1249/01.mss.0000222845.89262.cd
Krustrup, P., Mohr, M., Steensberg, A., Bencke, J., Kjaer, M., & Bangsbo, J. (2006b). Muscle and blood me-tabolites during a soccer game: Implications for sprint performance. Medicine and Science in Sports and Exercise, 38(6), 1165–1174. https://doi.org/10.1249/01.mss.0000222845.89262.cd
Lago-Peñas, C., Casais, L., Dellal, A., Rey, E., & Domínguez, E. (2011). Anthropometric and physiological characteristics of young soccer players according to their playing positions: Relevance for competition success. Journal of Strength and Conditioning Research, 25(12), 3358–3367. https://doi.org/10.1519/JSC.0b013e318216305d
Little, T., & Williams, A. G. (2005). Specificity of acceleration, maximum speed, and agility in profes-sional soccer players. Journal of Strength and Conditioning Research, 19(1), 76–78. https://doi.org/10.1519/14253.1
Lockie, R. G., Dawes, J. J., & Jones, M. T. (2018). Relationships between Linear Speed and Lower-Body Power with Change-of-Direction Speed in National Collegiate Athletic Association Divisions I and II Women Soccer Athletes. Sports (Basel, Switzerland), 6(2), 30. https://doi.org/10.3390/sports6020030
Lockie, R. G., Moreno, M. R., Lazar, A., Orjalo, A. J., Giuliano, D. V., Risso, F. G., Davis, D. L., Crelling, J. B., Lockwood, J. R., & Jalilvand, F. (2018). The Physical and Athletic Performance Characteristics of Division I Collegiate Female Soccer Players by Position. Journal of Strength and Conditioning Research, 32(2), 334–343. https://doi.org/10.1519/JSC.0000000000001561
Mallo, J., Mena, E., Nevado, F., & Paredes, V. (2015). Physical Demands of Top-Class Soccer Friendly Matches in Relation to a Playing Position Using Global Positioning System Technology. Journal of Human Kinetics, 47, 179–188. https://doi.org/10.1515/hukin-2015-0073
Malone, S., Owen, A., Newton, M., Mendes, B., Tiernan, L., Hughes, B., & Collins, K. (2018). Wellbeing per-ception and the impact on external training output among elite soccer players. Journal of Sci-ence and Medicine in Sport, 21(1), 29–34. https://doi.org/10.1016/j.jsams.2017.03.019
Manna, I., Khanna, G. L., & Chandra Dhara, P. (2010). Effect of training on physiological and biochemical variables of soccer players of different age groups. Asian Journal of Sports Medicine, 1(1), 5–22. https://doi.org/10.5812/asjsm.34875
Markovic, G., Dizdar, D., Jukic, I., & Cardinale, M. (2004). Reliability and factorial validity of squat and countermovement jump tests. Journal of Strength and Conditioning Research, 18(3), 551–555. https://doi.org/10.1519/1533-4287(2004)18<551:RAFVOS>2.0.CO;2
McMillan, K., Helgerud, J., Macdonald, R., & Hoff, J. (2005). Physiological adaptations to soccer specific endurance training in professional youth soccer players. British Journal of Sports Medicine, 39(5), 273–277. https://doi.org/10.1136/bjsm.2004.012526
Mendez-Villanueva, A., Buchheit, M., Simpson, B., Peltola, E., & Bourdon, P. (2011). Does on-field sprint-ing performance in young soccer players depend on how fast they can run or how fast they do run? Journal of Strength and Conditioning Research, 25(9), 2634–2638. https://doi.org/10.1519/JSC.0b013e318201c281
Modric, T., Versic, S., Sekulic, D., & Liposek, S. (2019). Analysis of the Association between Running Per-formance and Game Performance Indicators in Professional Soccer Players. International Jour-nal of Environmental Research and Public Health, 16(20), 4032. https://doi.org/10.3390/ijerph16204032
Mohr, M., Krustrup, P., & Bangsbo, J. (2003). Match performance of high-standard soccer players with special reference to development of fatigue. Journal of Sports Sciences, 21(7), 519–528. https://doi.org/10.1080/0264041031000071182
Mohr, M., Krustrup, P., & Bangsbo, J. (2005a). Fatigue in soccer: A brief review. Journal of Sports Scienc-es, 23, 593–599. https://doi.org/10.1080/02640410400021286
Mohr, M., Krustrup, P., & Bangsbo, J. (2005b). Fatigue in soccer: A brief review. Journal of Sports Sci-ences, 23, 593–599. https://doi.org/10.1080/02640410400021286
Monea, D., Prodan, R., & Grosu, V. T. (2017). Specific training for improving the skill and speed in junior football players. Timisoara Physical Education and Rehabilitation Journal, 10(19), 207–215. https://doi.org/10.1515/tperj-2017-0043
Osgnach, C., Poser, S., Bernardini, R., Rinaldo, R., & di Prampero, P. E. (2010). Energy cost and metabolic power in elite soccer: A new match analysis approach. Medicine and Science in Sports and Exer-cise, 42(1), 170–178. https://doi.org/10.1249/MSS.0b013e3181ae5cfd
Rampinini, E., Coutts, A. J., Castagna, C., Sassi, R., & Impellizzeri, F. M. (2007a). Variation in top level soc-cer match performance. International Journal of Sports Medicine, 28(12), 1018–1024. https://doi.org/10.1055/s-2007-965158
Rampinini, E., Coutts, A. J., Castagna, C., Sassi, R., & Impellizzeri, F. M. (2007b). Variation in top level soc-cer match performance. International Journal of Sports Medicine, 28(12), 1018–1024. https://doi.org/10.1055/s-2007-965158
Rampinini, E., Impellizzeri, F. M., Castagna, C., Coutts, A. J., & Wisløff, U. (2009). Technical performance during soccer matches of the Italian Serie A league: Effect of fatigue and competitive level. Journal of Science and Medicine in Sport, 12(1), 227–233. https://doi.org/10.1016/j.jsams.2007.10.002
Rebelo-Gonçalves, R., Coelho-e-Silva, M. J., Severino, V., Tessitore, A., & Figueiredo, A. J. B. (2015). An-thropometric and physiological profiling of youth soccer goalkeepers. International Journal of Sports Physiology and Performance, 10(2), 224–231. https://doi.org/10.1123/ijspp.2014-0181
Reilly, T., Bangsbo, J., & Franks, A. (2000). Anthropometric and physiological predispositions for elite soccer. Journal of Sports Sciences, 18(9), 669–683. https://doi.org/10.1080/02640410050120050
Reilly, T., Drust, B., & Clarke, N. (2008). Muscle fatigue during football match-play. Sports Medicine (Auckland, N.Z.), 38(5), 357–367. https://doi.org/10.2165/00007256-200838050-00001
Reilly, T., Williams, A. M., Nevill, A., & Franks, A. (2000). A multidisciplinary approach to talent identifi-cation in soccer. Journal of Sports Sciences, 18(9), 695–702. https://doi.org/10.1080/02640410050120078
Saeidi, A., & Khodamoradi, A. (2017). Physical and Physiological Demand of Soccer Player Based on Scientific Research.
Sarmento, H., Marcelino, R., Campanico, J., Matos, N., & Leitão, J. (2014). Match analysis in football: A systematic review. Journal of Sports Sciences, 32, 1831–1843. https://doi.org/10.1080/02640414.2014.898852
Sheppard, J. M., & Young, W. B. (2006). Agility literature review: Classifications, training and testing. Journal of Sports Sciences, 24(9), 919–932. https://doi.org/10.1080/02640410500457109
Slimani, M., Miarka, B., & Bragazzi, N. (2018). Maximum Oxygen Uptake of Male Soccer Players Accord-ing to their Competitive Level, Playing Position and Age Group: Implication from a Network Meta-Analysis. Journal of Human Kinetics, 66. https://doi.org/10.2478/hukin-2018-0060
Spencer, M., Bishop, D., Dawson, B., & Goodman, C. (2005). Physiological and metabolic responses of repeated-sprint activities:specific to field-based team sports. Sports Medicine (Auckland, N.Z.), 35(12), 1025–1044. https://doi.org/10.2165/00007256-200535120-00003
Sporis, G., Jukic, I., Ostojic, S. M., & Milanovic, D. (2009). Fitness profiling in soccer: Physical and physio-logic characteristics of elite players. Journal of Strength and Conditioning Research, 23(7), 1947–1953. https://doi.org/10.1519/JSC.0b013e3181b3e141
Stølen, T., Chamari, K., Castagna, C., & Wisløff, U. (2005). Physiology of soccer: An update. Sports Medi-cine (Auckland, N.Z.), 35(6), 501–536. https://doi.org/10.2165/00007256-200535060-00004
Tønnessen, E., Hem, E., Leirstein, S., Haugen, T., & Seiler, S. (2013). Maximal aerobic power characteris-tics of male professional soccer players, 1989-2012. International Journal of Sports Physiology and Performance, 8(3), 323–329. https://doi.org/10.1123/ijspp.8.3.323
Towlson, C., Cobley, S., Midgley, A. W., Garrett, A., Parkin, G., & Lovell, R. (2017). Relative Age, Matura-tion and Physical Biases on Position Allocation in Elite-Youth Soccer. International Journal of Sports Medicine, 38(3), 201–209. https://doi.org/10.1055/s-0042-119029
White, A., Hills, S. P., Cooke, C. B., Batten, T., Kilduff, L. P., Cook, C. J., Roberts, C., & Russell, M. (2018). Match-Play and Performance Test Responses of Soccer Goalkeepers: A Review of Current Liter-ature. Sports Medicine (Auckland, N.Z.), 48(11), 2497–2516. https://doi.org/10.1007/s40279-018-0977-2
Williams, A. M., & and Reilly, T. (2000). Talent identification and development in soccer. Journal of Sports Sciences, 18(9), 657–667. https://doi.org/10.1080/02640410050120041
WMA - The World Medical Association-Declaration of Helsinki. (2013). https://www.wma.net/what-we-do/medical-ethics/declaration-of-helsinki/
Ziv, G., & Lidor, R. (2011). Physical characteristics, physiological attributes, and on-field performances of soccer goalkeepers. International Journal of Sports Physiology and Performance, 6(4), 509–524. https://doi.org/10.1123/ijspp.6.4.509
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