Vol 7 Issue 6 November 2020-December 2020
Emmanouil Smpokos, Christos Mourikis, Christos Theos, Manolis Linardakis
Abstract: Purpose: The purpose of this study was to investigate the differences of physical performance metrics in two footballer groups (injured and uninjured) during one competitive season.
Methods: In a prospective-observational cohort study for one season (2016/2017) we included thirty-four professional football players. Footballers were classified as injured (n=27) and uninjured (n=7). Using Global-Positioning-System Technology (GPS), High-Speed-Running-(HSR), Very-High-Intensity-Speed-Running-(VHS), Maximal-Sprinting-(MS), High-Metabolic-Load-Distance-(HMLD), Maximum-Velocity-(Vmax) or number of accelerations and sprints were assessed from 635 measurements. MANCOVA was performed.
Results: The mean number of injuries was 2.0 injuries/injured player, 42.6% of them occurred during the matches and high prevalence or 85.1% was estimated in the lower limbs. The clinical incidence was 1.59 injuries/player and the injury incidence 88.8 injuries/1,000 match-playing-exposure hours. Injured players in relation to counterparts had higher mean HSR (483.5 vs. 389.8meters, p<0.001), VHS (376.6 vs. 322.2meters, p=0.001), MS (105.5 vs. 67.7meters, p<0.001), sprints (7.4 vs. 4.9, p<0.001), accelerations (44.7 vs. 40.5n, p=0.008), and Vmax (8.42 vs. 8.03m/s, p<0.001). In injured players, the post injuries measurements had significant (p<0.05) positive change in mean VHS (+17.9%), HSR (+16.4%) or HMLD (+14.1%).
Conclusions: Injured players displayed higher level in physical performance metrics probably due to the effort through the rehabilitation process in order to return faster and more prepared to the official obligations reducing the injury risk.
Keywords: Global Positioning System (GPS); football; injuries; lower limbs; motor activities.
Title: Differences of physical match performance metrics in professional football players classified as injured and uninjured during a season (2016/2017)
Author: Emmanouil Smpokos, Christos Mourikis, Christos Theos, Manolis Linardakis
International Journal of Novel Research in Interdisciplinary Studies