Adapting the percentage intensity method to assess accelerations and decelerations in football training
moving beyond absolute and arbitrary thresholds
Keywords:soccer, threshold, training, velocity
We present an adaptation of the percentage intensity approach to monitor accelerations and decelerations allowing players’ individualization.
Forty-two players were monitored during four training weeks via GNSS devices. Raw velocity and time data were collected, allowing acceleration, deceleration, and starting speed calculations. Training maximal accelerations and decelerations were calculated for each starting speed interval, and intensities were established as very low (< 25% of the maximal effort), low (25-50%), moderate (50-75%) and high (> 75%). Linear regressions and Pearson correlation (r) analyzed the relationship between the maximal acceleration and deceleration according to starting speeds, and mean paired differences compared efforts magnitudes between starting speed intervals.
Most very-low intensity efforts started < 5 km.h-1 (79-86%). Correlation between maximal efforts and starting speeds were -0.97 (p<.001) and -0.94 (p<.01) respectively. Maximal acceleration decreased as starting speed increases (very large effect sizes), but deceleration is less starting speed dependent (unclear to large effect sizes) during training.
This adaptation allows individual accelerations and decelerations classification during real-life scenarios, which can lead to a more precise training prescription. Very low intensity could be excluded to consider only relevant efforts. Maximal acceleration should be collected for each starting speed interval because accelerations are starting speed dependents.
Abbott, W., Brickley, G., Smeeton, N. J., & Mills, S. (2018). Individualizing acceleration in English premier league academy soccer players. The Journal of Strength & Conditioning Research, 32(12), 3503–3510.
Akenhead, R., & Nassis, G. P. (2016). Training load and player monitoring in high-level football: Current practice and perceptions. International Journal of Sports Physiology and Performance, 11(5), 587–593. https://doi.org/10.1123/ijspp.2015-0331
al Haddad, H., Simpson, B. M., Buchheit, M., di Salvo, V., & Mendez-Villanueva, A. (2015). Peak match speed and maximal sprinting speed in young soccer players: Effect of age and playing position. International Journal of Sports Physiology and Performance, 10(7), 888–896. https://doi.org/10.1123/ijspp.2014-0539
Batterham, A. M., & Hopkins, W. G. (2006). Making Meaningful Inferences About Magnitudes. International Journal of Sports Physiology and Performance, 1(1), 50–57.
de Hoyo, M., Cohen, D. D., Sañudo, B., Carrasco, L., Álvarez-Mesa, A., del Ojo, J. J., Domínguez-Cobo, S., Mañas, V., & Otero-Esquina, C. (2016). Influence of football match time–motion parameters on recovery time course of muscle damage and jump ability. Journal of Sports Sciences, 34(14), 1363–1370. https://doi.org/10.1080/02640414.2016.1150603
de Hoyo, M., Sañudo, B., Suárez-Arrones, L., Carrasco, L., Joel, T., Domínguez-Cobo, S., & Núñez, F. J. (2018). Analysis of the acceleration profile according to initial speed and positional role in elite professional male soccer players. Journal of Sports Medicine and Physical Fitness, 58(12), 1774–1780. https://doi.org/10.23736/S0022-4707.17.08003-3
Delves, R. I. M., Aughey, R. J., Ball, K., & Duthie, G. M. (2021). The Quantification of Acceleration Events in Elite Team Sport: a Systematic Review. Sports Medicine - Open, 7(1). https://doi.org/10.1186/s40798-021-00332-8
Djaoui, L., Chamari, K., Owen, A. L., & Dellal, A. (2017). Maximal sprinting speed of elite soccer players during training and matches. Journal of Strength and Conditioning Research, 31(6), 1509–1517. https://doi.org/10.1519/jsc.0000000000001642
FIFA Resource Hub - Catapult. (n.d.). Retrieved August 1, 2022, from https://www.fifa.com/technical/football-technology/resource-hub?QualityProgram=6Sshn3qiYsRBq6muymEEtY&Category=21vlZTNlv31aveduLGFmDi&Provider=Catapult Sports
Fischer-Sonderegger, K., Taube, W., Rumo, M., & Tschopp, M. (2019). Measuring physical load in soccer: Strengths and limitations of 3 different methods. International Journal of Sports Physiology and Performance, 14(5), 627–634. https://doi.org/10.1123/ijspp.2017-0768
Hader, K., Rumpf, M. C., Hertzog, M., Kilduff, L. P., Girard, O., & Silva, J. R. (2019). Monitoring the Athlete Match Response: Can External Load Variables Predict Post-match Acute and Residual Fatigue in Soccer? A Systematic Review with Meta-analysis. Sports Medicine - Open, 5(1). https://doi.org/10.1186/s40798-019-0219-7
Halson, S. L. (2014). Monitoring Training Load to Understand Fatigue in Athletes. Sports Medicine, 44, 139–147. https://doi.org/10.1007/s40279-014-0253-z
Harper, D. J., & Kiely, J. (2018). Damaging nature of decelerations: Do we adequately prepare players? BMJ Open Sport and Exercise Medicine, 4(1), 1–3. https://doi.org/10.1136/bmjsem-2018-000379
Harper, D. J., Morin, J. B., Carling, C., & Kiely, J. (2020). Measuring maximal horizontal deceleration ability using radar technology: reliability and sensitivity of kinematic and kinetic variables. Sports Biomechanics. https://doi.org/10.1080/14763141.2020.1792968
Hopkins, W. G., Marshall, S. W., Batterham, A. M., & Hanin, J. (2009). Progressive statistics for studies in sports medicine and exercise science. Medicine and Science in Sports and Exercise, 41(1), 3–12. https://doi.org/10.1249/MSS.0b013e31818cb278
Jamovi. (n.d.). the jamovi project (2.2). https://www.jamovi.org
Javier Núñez, F., Toscano-Bendala, F. J., Suarez-Arrones, L., Ignacio Martínez-Cabrera, F., & de Hoyo, M. (2019). Individualized thresholds to analyze acceleration demands in soccer players using GPS. Retos, 2041(35), 75–79.
Lovell, R., Scott, D., & Park, L. (2019). Soccer velocity thresholds: do we really know what’s best? Science and Medicine in Football, 3(1), 85–86. https://doi.org/10.1080/24733938.2019.1565361
Martínez-Cabrera, F. I., Núñez-Sánchez, F. J., Losada, J., Otero-Esquina, C., Sánchez, H., & de Hoyo, M. (2021). Use of Individual Relative Thresholds to Assess Acceleration in Young Soccer Players According to Initial Speed. Journal of Strength and Conditioning Research, 35(4), 1110–1118. https://doi.org/10.1519/JSC.0000000000002902
McBurnie, A. J., Harper, D. J., Jones, P. A., & Dos’Santos, T. (2022). Deceleration Training in Team Sports: Another Potential ‘Vaccine’ for Sports-Related Injury? Sports Medicine, 52(1). https://doi.org/10.1007/s40279-021-01583-x
Russel, M., Sparkes, W., Northeast, J., Cook, C. J., Love, T. D., Bracken, R. M., & Kilduff, L. P. (2014). Changes in Acceleration and Deceleration Capacity Throughout Professional Soccer Match-Play. Journal of Strength and Conditioning Research, 30(10), 2839–2844.
Scott, B. R., Lockie, R. G., Knight, T. J., Clark, A. C., & de Jonge, X. A. K. J. (2013). A comparison of methods to quantify the in-season training load of professional soccer players. International Journal of Sports Physiology and Performance, 8(2), 195–202. https://doi.org/10.1123/ijspp.8.2.195
Scott, M., Scott, T. J., & Kelly, V. G. (2016). The validity and reliability of global positioning systems in team sport: a brief review. The Journal of Strength & Conditioning Research, 30(5), 1470–1490.
Silva, H., Nakamura, F. Y., Beato, M., & Marcelino, R. (2022). Acceleration and deceleration demands during training sessions in football: a systematic review. Science and Medicine in Football. https://doi.org/10.1080/24733938.2022.2090600
Sonderegger, K., Tschopp, M., & Taube, W. (2016). The challenge of evaluating the intensity of short actions in soccer: A new methodological approach using percentage acceleration. PLoS ONE, 11(11), 1–10. https://doi.org/10.1371/journal.pone.0166534
Sweeting, A. J., Cormack, S. J., Morgan, S., & Aughey, R. J. (2017). When is a sprint a sprint? A review of the analysis of team-sport athlete activity profile. Frontiers in Physiology, 8(JUN), 1–12. https://doi.org/10.3389/fphys.2017.00432
Team, R. C. (2021). R: A Language and environment for statistical computing (4.0). https://cran.r-project.org
Varley, M. C., Jaspers, A., Helsen, W. F., & Malone, J. J. (2017). Methodological considerations when quantifying high-intensity efforts in team sport using global positioning system technology. International Journal of Sports Physiology and Performance, 12(8), 1059–1068.
Winter, E. M., & Maughan, R. J. (2009). Requirements for ethics approvals. Journal of Sports Sciences, 27(10), 985–985. https://doi.org/10.1080/02640410903178344
Copyright (c) 2023 Hugo Silva, Fábio Yuzo Nakamura, Fabio R. Serpiello, João Ribeiro, Paulo Roriz, Rui Marcelino (Author)
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