Biomechanical and Physiological Responses to 120 Min. of Soccer-Specific Exercise

Field, Adam; Corr, Liam David; Haines, Matthew; Lui, Steve; Naughton, Robert J.; Page, Richard; Harper, Liam D.

doi:10.1080/02701367.2019.1698698

Cited by 8 publications

(10 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, tapering training loads was highly dependent on the proximity of previous and upcoming matches, as opposed to whether the team had competed in an ET period. This could have detrimental implications for recovery potentially given that biomechanical loads are increased during simulated ET matches [ 37 ]. Given their unforeseeable nature, adapting training loads in response to ET matches requires versatility and carefully orchestrated periodisation to overcome the complexities associated with maintaining aerobic fitness whilst minimising the risk of load-related injuries [ 38 ].…”

Section: Discussionmentioning

confidence: 99%

Recovery following the extra-time period of soccer: practitioner perspectives and applied practices

Field¹,

Corr²,

Thompson

et al. 2022

Self Cite

View full text Add to dashboard Cite

Research has demonstrated that the extra-time (ET) period of soccer negatively impacts recovery. However, it is not known to what extent recovery practices are being adapted by practitioners following ET and where gaps exist between research and practice. Therefore, this study explored soccer practitioner perceptions of recovery practices following ET matches. A total of 72 practitioners from across different levels of soccer and several countries completed a bespoke online survey. Inductive content analysis of the responses identified five higher-order themes: ‘conditioning’, ‘player monitoring’, ‘recovery practices’, ‘training’, and ‘future research directions’. Mixed responses were received in relation to whether practitioners condition players in preparation for ET, though 72% allowed players to return to training based on fatigue markers following this additional 30-min period. Sixty-three (88%) practitioners believed that ET delays the time-course of recovery, with 82% highlighting that practices should be adapted following ET compared with a typical 90-min match. Forty-nine practitioners (68%) reduce training loads and intensities for up to 48 hr post ET matches, though training mostly recommences as ‘normal’ at 72 hr. Sixty-three (88%) practitioners believed that more research should be conducted on recovery following ET, with ‘tracking players physiological and physical responses’, ‘nutritional interventions to accelerate recovery’ and ‘changes in acute injury-risk’ being the three areas of research that practitioners ranked as most important. These data suggest practitioners and coaches adjust recovery practices following ET matches compared to 90 min. Further research on the efficacy of recovery strategies following ET matches is required to inform applied practice.

show abstract

Section: Discussionmentioning

confidence: 99%

Recovery following the extra-time period of soccer: practitioner perspectives and applied practices

Field¹,

Corr²,

Thompson

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…65 Considering distances and speeds are standardised (both across time periods and between participants), gives researcher assurance that within-exercise changes observed in a given measure are likely due to fatigue, rather than pacing or player motivation. 66 It must also be considered that treadmills are essential for certain types of research, for example studies involving climate chambers 51 or when a controlled model is required. Thought must also be applied to employing a pseudorandom activity simulation to ensure players are unable to predict upcoming speed changes, thus, imitating the stochastic distribution of match-play.…”

Section: Motorised Treadmill-based Soccer-specific Exercise Protocolsmentioning

confidence: 99%

“…This could impede natural running mechanics 67 , coupled with fatigue-induced compensatory adjustments in gait, possibly increasing soft-tissue injury-risk. 66 However, motorised treadmill simulations are also generally less effective for eliciting valid physiological data (as evidenced by small changes in biochemical milieu) 65 , sprinting speeds are not always reached and the treadmill itself can be expensive versus the cost-effectiveness of field-based simulations. All motorised-treadmillbased simulations included in this section are characterised in Table 3.…”

Section: Motorised Treadmill-based Soccer-specific Exercise Protocolsmentioning

confidence: 99%

A commentary on soccer match-play simulations for applied research and practice

Field

Harper

Aldous

et al. 2022

Science and Medicine in Football

Self Cite

View full text Add to dashboard Cite

Soccer is a fast-growing area of research, demonstrated by a 10-fold increase in the number of PubMed articles derived from the search term 'soccer' between 2001 and 2021. The scope of contemporary soccer-related articles ranges from match-play observations to laboratory evaluations of performance. The activity profile of soccer match-play is variable and techniques to collect data within matches are limited. Soccer-specific simulations have been developed to simulate the evolving demands of match-play. The evolutionary designs of novel simulations provide a reproducible exercise stimulus for varying researcher and practitioner objectives. The applied researcher can utilise simulations to investigate the efficacy of nutritional interventions and environmental stress on performance, while assessing the physiological and biomechanical responses to representations of match-play. Practitioners can adopt simulations for rehabilitation to progressively facilitate return-to-play processes, while implementing extra top-up conditioning sessions for unused and partial-match players. However, there are complexities involved with the selection of varying simulations which are dependent on the research question or practical application. There also remains a paucity of published information to support researchers and practitioners in selecting from differing simulation models. To assist with researcher and practitioner interpretations, we present a commentary of the current simulations to inform decisionmaking processes for research and training purposes and enhance the application of future research. An objective scoring system was adopted for rating the research and practical applications of each simulation design. Overall scores of 22, 16 and 18 out of 36 were revealed for free-running (n=7), nonmotorised-(n=4) and motorised-treadmill-based simulations (n=4), respectively.

show abstract

“…A few studies have examined the physiological effects of extra time in soccer. For example, Field et al ( 13 ) reported decreased mechanical efficiency and increased fat oxidation during extra time using a simulated soccer protocol. Others, using simulated models and both peripheral nerve and transcranial magnetic stimulations, showed an exacerbated neuromuscular fatigue response to extra “playing” time ( 14 ).…”

mentioning

confidence: 99%

Extended Match Time Exacerbates Fatigue and Impacts Physiological Responses in Male Soccer Players

Mohr

Ermιdis

Jamustas

et al. 2022

Medicine &Amp; Science in Sports &Amp; Exercise

View full text Add to dashboard Cite

Purpose: This study evaluated how extended match time (90 + 30 min) affected physiological responses and fatigue in male soccer players. Methods: Twenty competitive players (mean ± SD: age, 20 ± 1 yr; maximal oxygen uptake, 59 ± 4 mL•min −1 •kg −1 ) completed an experimental match with their activity pattern and heart rate assessed throughout the game, whereas countermovement jump performance and repeated sprint ability were tested and quadriceps muscle biopsies and venous blood samples were taken at baseline and after 90 and 120 min of match play. Results: Less high-intensity running (12%) was performed in extra time in association with fewer intense accelerations and decelerations per minute compared with normal time. Peak sprint speed was 11% lower in extra time compared with normal time, and fatigue also manifested in impaired postmatch repeated sprint ability and countermovement jump performance (all P < 0.05). Muscle glycogen declined from 373 ± 59 mmol•kg −1 dry weight (dw) at baseline to 266 ± 64 mmol•kg −1 dw after 90 min, with a further decline to 186 ± 56 mmol•kg −1 dw after extra time (P < 0.05) and with single-fiber analyses revealing depleted or very low glycogen levels in ~75% of both slow and fast twitch fibers. Blood glucose did not change during the first 90-min but declined (P < 0.05) to 81 ± 8 mg•dL −1 after extra time. Plasma glycerol and ammonia peaked at 236 ± 33 mg•dL −1 and 75 ± 21 μmol•L −1 after the extra period. Conclusions: These findings demonstrate exacerbated fatigue after extra time compared with normal time, which seems to be associated with muscle glycogen depletion, reductions in blood glucose levels, and hyperammonemia. Together, this points to metabolic disturbances being a major part of the integrated and multifaceted fatigue response during extended soccer match play.

show abstract

Biomechanical and Physiological Responses to 120 Min. of Soccer-Specific Exercise

Cited by 8 publications

References 44 publications

Recovery following the extra-time period of soccer: practitioner perspectives and applied practices

Recovery following the extra-time period of soccer: practitioner perspectives and applied practices

A commentary on soccer match-play simulations for applied research and practice

Extended Match Time Exacerbates Fatigue and Impacts Physiological Responses in Male Soccer Players

Contact Info

Product

Resources

About