Modelling the decrement in running intensity within professional soccer players

Delaney, Jace A.; Thornton, Heidi R.; Rowell, Amber E.; Dascombe, Ben J.; Aughey, Robert J.; Duthie, Grant M.

doi:10.1080/24733938.2017.1383623

Cited by 79 publications

(175 citation statements)

References 33 publications

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“…In particular, Vázquez-Guerrero et al (2019) showed that basketball players averaged 1.8 and 1.5 high-intensity accelerations and decelerations and covered a relative distance of 72.6 m min −1 . A similar trend has been observed in previous studies conducted in other sports, such as associated football (Abbott et al, 2018;Delaney et al, 2018;Martín-García et al, 2018;Casamichana et al, 2019), rugby (Delaney et al, 2016;Cunningham et al, 2018), Gaelic football (Malone et al, 2017), and Australian football (Delaney et al, 2017).…”

Section: Discussionsupporting

confidence: 89%

“…While some studies have determined the most demanding scenarios in physical demands during competition in intermittent team sports such as association football (Abbott et al, 2018;Delaney et al, 2018;Martín-García et al, 2018;Casamichana et al, 2019), rugby (Delaney et al, 2016;Cunningham et al, 2018), Gaelic football (Malone et al, 2017), and Australian football (Delaney et al, 2017) through different time average rolling durations, no studies are available that quantify physical demands during match play in basketball using this approach. A plethora of studies have examined the average (mainly per minute) and absolute physical demands of match play in basketball reporting that players usually cover 5-6 km at an average speed of 70-90 m min −1 and perform a total of 40-50 jumps (Stojanović et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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The Most Demanding Scenarios of Play in Basketball Competition From Elite Under-18 Teams

et al. 2020

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The main purpose of this study was to describe the most demanding scenarios of match play in basketball through a number of physical demand measures (high-intensity accelerations and decelerations, relative distance covered, and relative distance covered in established speed zones) for four different rolling average time epochs (30, 60, 180, and 300 s) during an official international tournament. A secondary purpose was to identify whether there were significant differences in physical demand measures among playing positions (centers, guards, and forwards) and levels (two best classified teams in the tournament and remaining teams), match scoring (winning, losing, and drawing), and playing periods (match quarter) at the moment of the most demanding scenarios. Data were collected from 94 male under 18 (U18) elite basketball players (age: 17.4 ± 0.7 years; stature: 199.0 ± 11.9 cm; body mass: 87.1 ± 13.1 kg) competing in a Euroleague Basketball Tournament. Measures were compared via a Bayesian inference analysis. The results revealed the presence of position-related differences [Bayesian factor (BF) > 10 (at least strong evidence) and standardized effect size (δ) > 0.6 (at least moderate)] so that centers covered a lower relative distance at speed zone 1 and had lower high-intensity accelerations and decelerations than guards. However, the Bayesian analysis did not demonstrate the existence of significant differences in any physical demand measure in relation to the playing level, match scoring, and playing periods at the moment of the most demanding scenarios. Therefore, this study provides coaches and strength and conditioning specialists with a most demanding scenario reference on physical demands that can be used as an upper limit threshold in the training and rehabilitation monitoring processes.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

The Most Demanding Scenarios of Play in Basketball Competition From Elite Under-18 Teams

et al. 2020

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“…Estudios en otros deportes como el fútbol muestran menor intensidad en partido cuando existen prórrogas (Russell et al, 2015), además del descenso de la intensidad en situaciones de juegos reducidos cuando se alarga la duración de la repetición (Carling et al, 2010). Recientemente también se ha reportado cómo la intensidad de los periodos más demandantes de la competición disminuye a medida que aumenta la duración temporal del análisis en diferentes deportes colectivos (Delaney, Thornton, Burgess, Dascombe y Duthie, 2017;Delaney, Thornton, Rowell et al, 2017). Se entiende, por tanto, que esta diferencia en el número de minutos encontrado en función de la posición ocupada por las jugadoras influye directamente en la intensidad de juego, resultando por tanto un aspecto clave en la preparación de las deportistas para la competición.…”

Section: Discussionunclassified

“…Studies in other sports like football show a lower intensity in the match when there is overtime (Russell et al, 2015) in addition to a decrease in intensity in small sided games situations when the duration of the repetition is lengthened (Carling et al, 2010). Recently it has also been reported that the intensity of the most demanding periods in competition drops as the length of the analysis time in different team sports increases (Delaney, Thornton, Burgess, Dascombe, & Duthie, 2017;Delaney, Thornton, Rowell et al, 2017). Therefore, it is held that this difference in the number of minutes according to the position occupied by the players in this study directly influences the intensity of the game, thus making it a key factor in preparing athletes for competition.…”

Section: Discussionmentioning

confidence: 99%

Demandas cinemáticas de competición internacional en el hockey sobre hierba femenino

Morencos¹,

Casamichana²,

Torres³

et al. 2019

Apunts

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Objective. To compare the kinematic demands on international women field hockey players during official competition matches. Materials and methods. Sixteen women players (age: 24.7 ± 2.8; weight: 57.9 ± 5.9 kg; height: 165.2 ± 4.9 cm) belonging to the Spanish national team were monitored during 5 matches of the European Championship using global positioning systems (GPS). The analyses were carried out according to the players' positions (defenders, midfielders and forwards), the quarters in the game (Q1, Q2, Q3, Q4), and the number of minutes played. The data analysed included distances, accelerations and decelerations in different intensity ranges. Results. The defenders showed less high-intensity activity (speeds, accelerations and decelerations) than midfielders and forwards (9.4 ± 2.4%; ES: 0.78 with the midfielders and 33.1 ± 7.2%; ES: 2.1, with the defenders). The analysis by quarters showed that in Q4 activity was the highest for all positions. In terms of the number of minutes played, the cluster analysis grouped the players into 3 groups according to the number of minutes played (<32, 32-45 and >45 minutes). The athletes who played <32 covered the greatest distance at a sprint (>21 km/h) and high-intensity distance (>15 km/h) per minute of play compared to the group who played >45 minutes. Conclusions. The results of this study show that the physical demands on élite women hockey players depend on their position on the field, and that there is more activity in the last quarter and less relative high-intensity kinematic activity among the players who play more minutes during the match.

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“…However, the distance covered while decelerating [1] and the number of deceleration efforts [17,21,26] that were quantified in these studies do not take into consideration whether a player has had the opportunity to decelerate. Similar to how a player's top speed and ability to maintain speed decreases throughout a match [12], the opportunities to decelerate (i. e., number of accelerations and high-velocity efforts) [15] also decrease. This does not necessarily give causality to a compromised ability to decelerate but rather a lack of opportunity to decelerate.…”

Section: Introductionmentioning

confidence: 99%

Modelling the Acceleration and Deceleration Profile of Elite-level Soccer Players

Newans

Bellinger

Dodd³

et al. 2019

Int J Sports Med

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The ability to change velocity rapidly is a key element of field-based sports. This study quantified the acceleration and deceleration profiles of soccer players during match play. Global positioning system measures were collected from 20 male soccer players competing in the Australian Hyundai A-League during 58 matches. Match data were organized into ten 9 min periods (i. e., P1: 0–9 min) and the time spent at moderate (1–2 m·s−2) and high (>2 m·s−2) acceleration and deceleration thresholds were quantified. Additionally, a novel deceleration: acceleration ratio was quantified to identify the transient nature of deceleration activity. Linear mixed models were used to model the acceleration and deceleration profiles. All acceleration and deceleration metrics displayed negative logarithmic curves within each half. There was no change in the ratio of high deceleration: acceleration; however, a significant increase in the ratio of moderate deceleration:acceleration was evident. Using negative logarithmic curves to illustrate the acceleration and deceleration decay provides a novel methodological approach to quantify the high-intensity actions during match play. A decrease in the time spent decelerating throughout a match may be attributed to a lack of opportunity. Practitioners can use the coefficients, intercepts, and deceleration: acceleration ratios to monitor a player’s deceleration profile in match play.

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Modelling the decrement in running intensity within professional soccer players

Cited by 79 publications

References 33 publications

The Most Demanding Scenarios of Play in Basketball Competition From Elite Under-18 Teams

The Most Demanding Scenarios of Play in Basketball Competition From Elite Under-18 Teams

Demandas cinemáticas de competición internacional en el hockey sobre hierba femenino

Modelling the Acceleration and Deceleration Profile of Elite-level Soccer Players

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