Assessment of Peak Physical Demands in Elite Women Soccer Players: Can Contextual Variables Play a Role?

2022 ◽  
pp. 1-9
Author(s):  
Jaime González-García ◽  
Verónica Giráldez-Costas ◽  
Rodrigo Ramirez-Campillo ◽  
Barry Drust ◽  
Blanca Romero-Moraleda
Keyword(s):  
Soccer Players ◽  
Contextual Variables ◽  
Physical Demands

scholarly journals Effect of Playing Position, Match Half, and Match Day on the Trunk Inclination, G-Forces, and Locomotor Efficiency Experienced by Elite Soccer Players in Match Play

Sensors ◽  
2020 ◽  
Vol 20 (20) ◽  
pp. 5814 ◽  
Author(s):  
José M. Oliva-Lozano ◽  
Elisa F. Maraver ◽  
Víctor Fortes ◽  
José M. Muyor
Keyword(s):  
Rapid Growth ◽  
Wearable Sensors ◽  
Soccer Players ◽  
Specific Training ◽  
Contextual Variables ◽  
Successful Performance ◽  
Match Play ◽  
Physical Demands ◽  
Trunk Inclination ◽  
Trunk Kinematics

The rapid growth of wearable sensors has allowed the analysis of trunk kinematics during the match, which is necessary for having a better understanding of the postural demands of soccer players. However, some contextual variables may have an impact on the physical demands of the players. This study aimed to analyze the effect of three contextual variables (playing position, match half, and match day) on the sagittal trunk inclination, G-forces, and locomotor efficiency experienced by soccer players in match play. Then, wearable sensors were used to collect the trunk kinematics during 13 matches. Firstly, positional differences were found on the trunk inclination (p = 0.01) and the G-forces experienced by the players (p < 0.001). For example, the greatest and lowest trunk inclination was found for FW (~34.01°) and FB (~28.85°) while the greatest and lowest G-forces were found for WMF (1.16 G) and CD (1.12 G), respectively. However, there were no positional differences in the locomotor efficiency (p = 0.10). Secondly, the match half had a significant effect on the trunk inclination (p = 0.01) and the G-forces experienced by the players (p < 0.001) with significantly lower values observed during the second half. No differences between halves were found on the locomotor efficiency for any playing position (p = 0.41). Finally, no significant effect of match day on any variable was observed. This investigation is one of the first steps towards enhancing the understanding of trunk kinematics from elite soccer players. The positional differences found on the trunk inclination and G-forces imply that the development of position-specific training drills considering the postural demands is necessary to prepare the players not only for the physical demands but also for successful performance in the field of regard. The resistance to fatigue needs to be trained given the differences between halves.

scholarly journals Activity Profiles of Soccer Players During the 2010 World Cup

2013 ◽  
Vol 38 ◽  
pp. 201-211 ◽  
Author(s):  
Filipe Manuel Clemente ◽  
Micael Santos Couceiro ◽  
Fernando Manuel Lourenço Martins ◽  
Monika Ognyanova Ivanova ◽  
Rui Mendes
Keyword(s):  
High Activity ◽  
Soccer Players ◽  
Activity Time ◽  
Activity Profile ◽  
World Cup ◽  
Physical Demands ◽  
Fifa World Cup ◽  
Medium Activity ◽  
The Mean ◽  
Low Activity

Abstract The main objective of this study was to analyse the distance covered and the activity profile that players presented at the FIFA World Cup in 2010. Complementarily, the distance covered by each team within the same competition was analysed. For the purposes of this study 443 players were analysed, of which 35 were goalkeepers, 84 were external defenders, 77 were central defenders, 182 were midfielders, and 65 were forwards. Afterwards, a thorough analysis was performed on 16 teams that reached the group stage, 8 teams that achieved the round of 16, 4 teams that reached the quarter-finals, and 4 teams that qualified for the semi-finals and finals. A comparison of the mean distance covered per minute among the playing positions showed statistically significant differences (F(4,438) = 559.283; p < 0.001; 2 = 0.836; Power = 1.00). A comparison of the activity time among tactical positions also resulted in statistically significant differences, specifically, low activity (F(4,183.371) = 1476.844; p < 0.001; 2 = 0.742; Power = 1.00), medium activity (F(4,183.370) = 1408.106; p < 0.001; 2 = 0.731; Power = 1.00), and high activity (F(4,182.861) = 1152.508; p < 0.001; 2 = 0.703; Power = 1.00). Comparing the mean distance covered by teams, differences that are not statistically significant were observed (F(3,9.651) = 4.337; p < 0.035; 2 = 0.206; Power = 0.541). In conclusion, the tactical positions of the players and their specific tasks influence the activity profile and physical demands during a match.

scholarly journals Player Load and Metabolic Power Dynamics as Load Quantifiers in Soccer

2019 ◽  
Vol 69 (1) ◽  
pp. 259-269 ◽  
Author(s):  
Pedro Reche-Soto ◽  
Donaldo Cardona-Nieto ◽  
Arturo Diaz-Suarez ◽  
Alejandro Bastida-Castillo ◽  
Carlos Gomez-Carmona ◽  
...  
Keyword(s):  
External Load ◽  
National Level ◽  
Objective Analysis ◽  
Soccer Players ◽  
Power Dynamics ◽  
Metabolic Power ◽  
Physical Demands ◽  
Performance Reduction ◽  
Specific Position ◽  
The Relationship

Abstract There has recently been an increase in quantification and objective analysis of soccer performance due to improvements in technology using load indexes such as Player Load (PL) and Metabolic Power (MP). The objectives of this study were: (1) to describe the performance of PL and MP in competition according to the specific role, match‐to‐ match variation, periods of play, game location and match status according to game periods, and (2) to analyze the relationship between both indexes. Twenty‐one national‐level soccer players were distributed in the following specific positional roles: external defenders (ED) (n = 4), central defenders (CD) (n = 4), midfielders (M) (n = 5), external midfielders (EM) (n = 4) and attackers (A) (n = 4). A total of 12 matches played by a Spanish Third Division team during the 2016/2017 season were analyzed. WIMU PROTM inertial devices (RealTrack System, Almeria, Spain) were used for recording the data. The main results were: (1) a performance reduction in both variables over the course of match time, (2) significant differences in both variables based on the specific position, (3) differences in physical demands during the season matches, (4) winning during a game period and the condition of being the visitor team provoked higher demands, and (5) a high correlation between both variables in soccer. In conclusion, different contextual variables influence the external load demands; both indexes are related so they could be used for external load quantification, and it is necessary to analyze physical demands of the competition for a specific and individualized load design in training sessions.

Worst case scenario match analysis and contextual variables in professional soccer players: a longitudinal study

2020 ◽  
Vol 37 (4) ◽  
pp. 429-436 ◽  
Author(s):  
José M. Oliva-Lozano ◽  
Daniel Rojas-Valverde ◽  
Carlos D. Gómez-Carmona ◽  
Víctor Fortes ◽  
José Pino-Ortega
Keyword(s):  
Longitudinal Study ◽  
Soccer Players ◽  
Contextual Variables ◽  
Case Scenario ◽  
Match Analysis ◽  
Worst Case ◽  
Worst Case Scenario ◽  
Professional Soccer

scholarly journals The Influence of Playing Formation on Physical Demands and Technical-Tactical Actions According to Playing Positions in an Elite Soccer Team

2021 ◽  
Vol 18 (8) ◽  
pp. 4148
Author(s):  
José Luis Arjol-Serrano ◽  
Miguel Lampre ◽  
Adrián Díez ◽  
Daniel Castillo ◽  
Fernando Sanz-López ◽  
...  
Keyword(s):  
Training Programs ◽  
Soccer Players ◽  
Specific Training ◽  
Match Play ◽  
Physical Demands ◽  
Total Distance ◽  
Soccer Team

The aim of this study was to examine the differences in the physical demands and technical-tactical actions encountered by soccer players between two playing formations (1-4-2-3-1 and 1-4-4-2) for each playing position. Twenty-three professional male soccer players who played 31 official matches participated in this study. Players were classified according to their playing position: central defenders (CD), wide defenders (WD), central midfielders (CM), wide midfielders (WM), offensive midfielders (OM) and forwards (FW). The physical demands were collected as total distance (TD), distance covered in different speed thresholds, and number of accelerations and decelerations. Also, the technical-tactical variables were recorded. The results showed that the 1-4-2-3-1 playing formation demanded decelerations between 2–4 m·s2 (p = 0.027; ES = 0.26) in comparison with 1-4-4-2 for all players. Likewise, forwards (FW) and central midfielders (CM) registered higher physical demands playing with the 1-4-2-3-1 compared to the 1-4-4-2 formation. Regarding the technical-tactical actions, they showed differences between the playing positions of the two playing formations. The findings suggest coaches prescribe specific training programs based on the influence of the playing formation and playing position on the physical demands and technical-tactical actions encountered by players during official match-play.

scholarly journals The Effect of Contextual Variables on Match Performance across Different Playing Positions in Professional Portuguese Soccer Players

2021 ◽  
Vol 18 (10) ◽  
pp. 5175
Author(s):  
Joel Barrera ◽  
Hugo Sarmento ◽  
Filipe Manuel Clemente ◽  
Adam Field ◽  
António J. Figueiredo
Keyword(s):  
Physical Performance ◽  
High Speed ◽  
Satellite System ◽  
Soccer Players ◽  
Physical Demands ◽  
Situational Variables ◽  
All Speeds ◽  
Global Navigation Satellite ◽  
Walking Speeds ◽  
Very High

This study investigated the position-specific physical demands of professional Portuguese players. The effects of situational variables on the physical performance demands were also analysed (match location, match half and match result). Match performance observations were collected using Global Navigation Satellite System devices across 11 matches during a competitive season (2019–2020). Data were analysed according to five playing positions: goalkeepers (n = 11), central defenders (n = 42), wide defenders (n = 31), central midfielders (n = 34), open attackers (n = 28), and centre forwards (n = 14). Central midfield players completed the greatest total distance (10,787 ± 1536 m), while central defenders covered the least distance (9272 ± 455; p < 0.001). Open attackers covered the greatest high and very-high-speed distance (1504 ± 363 m), number of high-speed decelerations per match (11 ± 4) and were the fastest players (30.6 ± 1.5 km/h), along with center forwards (30.6 ± 2.0 km/h), versus all other positions (p < 0.05). Greater distances were performed in teams that were winning (9978 ± 1963 m) or drawing (10,395 ± 875 m) versus losing (9415 ± 2050) p = 0.036 and p = 0.006, respectively. Increases in distance covered at walking speeds were observed during the 2nd half (1574 ± 179 m) compared with the 1st half (1483 ± 176; (p < 0.003). A higher number of decelerations across all speeds were performed in the 1st half (144 ± 39) versus the 2nd half (135 ± 37). The distance covered in home matches (10,206 ± 1926 m) far exceeded away matches (9471 ± 1932 m; p < 0.001). The number of faster accelerations were higher in away (7 ± 5) versus home matches (6 ± 4; p < 0.049). The data demonstrate the different physical demands of each playing position and suggest that situational variables influence physical performance. These findings suggest position-specific physical training is required to condition players for the bespoke demands of each playing position.

scholarly journals Influence of contextual factors on physical demands and technical-tactical actions regarding playing position in professional soccer players

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Adrián Díez ◽  
Demetrio Lozano ◽  
Jose Luis Arjol-Serrano ◽  
Elena Mainer-Pardos ◽  
Daniel Castillo ◽  
...  
Keyword(s):  
High Speed ◽  
Final Outcome ◽  
Soccer Players ◽  
Medium Effect ◽  
Analysis Tool ◽  
Convenience Sample ◽  
Physical Demands ◽  
Total Distance ◽  
Professional Soccer ◽  
At Home

Abstract Background The aim of this study was to analyse the physical demands and technical-tactical actions for each playing position according to game location and final outcome in professional soccer players. Methods A convenience sample was obtained from twenty-one professional male soccer players, belonged to same soccer team of the Spanish Second Division. Players’ physical demands were monitored during each match using a portable 18 Hz GPS unit and 600 Hz triaxial accelerometer. These analysed demands were total distance, moderate speed running distance (>14.4 km·h-1), high-speed running distance (>19.8. km·h-1), sprint distance (>25.0 km·h-1), number of accelerations between 2 and 4 m·s-2 and above 4 m·s-2, and number of decelerations between 2 and 4 m·s-2 and above 4 m·s-2. The data related to technical-tactical actions were obtained from WyScout®, a computerized multiple-camera tracking system based on the OPTA® track analysis tool. The obtained indicators were general, defensive and offensive. Results For all players, higher total distance (p = 0.045; effect size [ES] = 0.24, small effect) was covered and greater deceleration 2-4 m·ss-2 (p = 0.001; ES = 0.68, medium effect) was performed when the team plays at home and lose and for all players, playing at home and winning demanded higher defensive volume (p =0.014; ES = − 1.49, large effect) and nº interceptions (p =0.031; ES = − 1.40, large effect) in comparison to playing at home and losing. Conclusions The physical demands and technical-tactical actions vary when contextual game factors (i.e., match location and final outcome) are considered. We can confirm that, although the training of physical demands does not influence the final result of the match, the training of technical tactical actions could help to achieve an optimal performance of the team to win matches.

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