Analysis of Intensities Using Inertial Motion Devices in Female Soccer: Do You Train like You Compete?

Intensity research in female soccer is limited. This study aimed to investigate whether female professional soccer players train with external and internal intensities similar to those recorded in real competition. The specific players’ position, the game situation and training task type were analyz...

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Bibliographic Details
Main Authors: Bravo, A. (Author), de la Cruz-Sánchez, E. (Author), Feu, S. (Author), García-Ceberino, J.M (Author)
Format: Article
Language:English
Published: MDPI 2022
Subjects:
Online Access:View Fulltext in Publisher
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020 |a 14248220 (ISSN) 
245 1 0 |a Analysis of Intensities Using Inertial Motion Devices in Female Soccer: Do You Train like You Compete? 
260 0 |b MDPI  |c 2022 
856 |z View Fulltext in Publisher  |u https://doi.org/10.3390/s22082870 
520 3 |a Intensity research in female soccer is limited. This study aimed to investigate whether female professional soccer players train with external and internal intensities similar to those recorded in real competition. The specific players’ position, the game situation and training task type were analyzed in a total of 18 female players (26.25 ± 3.89 years). The empirical, descriptive and associative study was structured into two parts. Part 1: characterizing the training sessions (n = 13) and official matches (n = 3) using the Integral Analysis System of Training Tasks. The association between sports planning variables was evaluated using adjusted standardized residuals from contingency tables, Chi-Square and Fisher tests, as well as the Phi and Cramer’s V coefficients. The main findings show that the coach and/or physical trainer predominantly planned training sessions using small-sided games, which integrate physical fitness and tactical-technical behaviors of the game and imply a medium-high subjective external intensity (20.63 ± 5.79 points). The subjective external intensity of the matches was very high (30.00 ± 0.00 points). Part 2: quantifying the external and internal intensity through the inertial motion devices and heart rate monitors. Differences in the intensities according to the type of session (training session and match), specific position of the players, game situation and type of the training task were assessed through different statistical tests. By specific position (Kruskal–Wallis H and one-factor ANOVA tests), defenders performed fewer accelerations/min and decelerations/min, while they recorded higher heart rates in training sessions and official matches. In contrast, the wingbacks performed higher accelerations/min and decelerations/min in training sessions and official matches. The wingers had the lowest heart rate in official matches. Regarding the game situation (Kruskal–Wallis H test) measured during training sessions, the unopposed tasks recorded higher accelerations/min and decelerations/min, while the small-sided games and full games recorded higher values in the rest of the intensities (both subjective and objective). With regard to the type of training task (Kruskal–Wallis H test), the simple application exercises recorded higher accelerations/min and decelerations/min. Distance in meters/min was greater in the complex application exercises. High-intensity activity/min and player load/min were higher in the simple specific game. In addition, modified sport and real game recorded higher subjective external intensity*min, sprints/min and heart rate. Furthermore, training sessions differed statistically (Mann–Whitney U test) from official matches in terms of subjective intensity and the objective external and internal intensity variables weighted by minutes. For all these reasons, female players do not train (training sessions) as they compete (official matches). The use of inertial motion devices has made it possible to quantify intensities during training sessions and real competition in soccer. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. 
650 0 4 |a Acceleration 
650 0 4 |a Deceleration 
650 0 4 |a external intensity 
650 0 4 |a External intensity 
650 0 4 |a female player 
650 0 4 |a Female players 
650 0 4 |a Heart 
650 0 4 |a Heart-rate 
650 0 4 |a High acceleration 
650 0 4 |a Inertial motions 
650 0 4 |a internal intensity 
650 0 4 |a Internal intensity 
650 0 4 |a Kruskal 
650 0 4 |a Motion devices 
650 0 4 |a official match 
650 0 4 |a Official match 
650 0 4 |a Patient monitoring 
650 0 4 |a Sports 
650 0 4 |a training session 
650 0 4 |a Training sessions 
700 1 0 |a Bravo, A.  |e author 
700 1 0 |a de la Cruz-Sánchez, E.  |e author 
700 1 0 |a Feu, S.  |e author 
700 1 0 |a García-Ceberino, J.M.  |e author 
773 |t Sensors