Kinematic Analysis of the Postural Demands in Professional Soccer Match Play Using Inertial Measurement Units

被引:7
作者
Oliva-Lozano, Jose M. [1 ]
Maraver, Elisa F. [2 ]
Fortes, Victor [3 ]
Muyor, Jose M. [1 ,4 ]
机构
[1] Univ Almeria, Hlth Res Ctr, Almeria 04120, Spain
[2] Univ Oberta Catalunya, Fac Comp Sci Multimedia & Telecommun, Barcelona 08018, Spain
[3] Union Deport Almeria, Almeria 04007, Spain
[4] Univ Almeria, Lab Kinesiol Biomech & Ergon KIBIOMER Lab, Res Cent Serv, Almeria 04120, Spain
关键词
football demands; running posture; game analysis; load management; team sports; tracking systems; LOW-BACK-PAIN; TRUNK POSTURE; MOVEMENT; BIOMECHANICS; PERFORMANCE; AWARENESS; SKILLS;
D O I
10.3390/s20215971
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The development of wearable sensors has allowed the analysis of trunk kinematics in match play, which is necessary for a better understanding of the postural demands of the players. The aims of this study were to analyze the postural demands of professional soccer players by playing position. A longitudinal study for 13 consecutive microcycles, which included one match per microcycle, was conducted. Wearable sensors with inertial measurement units were used to collect the percentage (%) of playing time spent and G-forces experienced in different trunk inclinations and the inclination required for different speeds thresholds. The inclination zone had a significant effect on the time percentage spent on each zone (p < 0.001, partial eta-squared (eta p(2) = 0.85) and the G-forces experienced by the players (p < 0.001, eta p(2) = 0.24). Additionally, a significant effect of the speed variable on the trunk inclination zones was found, since trunk flexion increased with greater speeds (p < 0.001; eta p(2) = 0.73), except for midfielders. The players spent most of the time in trunk flexion between 20 degrees and 40 degrees; the greatest G-forces were observed in trunk extension zones between 0 degrees and 30 degrees, and a linear relationship between trunk inclination and speed was found. This study presents a new approach for the analysis of players' performance. Given the large volumes of trunk flexion and the interaction of playing position, coaches are recommended to incorporate position-specific training drills aimed to properly prepare the players for the perception-action demands (i.e., visual exploration and decision-making) of the match, as well as trunk strength exercises and other compensatory strategies before and after the match.
引用
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页码:1 / 11
页数:11
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JOURNAL OF STRENGTH AND CONDITIONING RESEARCH, 2019, 33 (10) :2648-2654