Acute effects of training load on contractile properties during a competitive microcycle in elite soccer players

Rey, Ezequiel; Costa, Pablo B.; Pérez-Ferreirós, Alexandra; Fernández-Villarino, María A.

doi:10.5114/biolsport.2020.93041

Cited by 9 publications

(24 citation statements)

References 29 publications

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“…Of the included articles, external load was quantified as total distance (7,28), high-speed distance (>4.2 m/s (48), >5 m/s (7,13), >5.5 m/s (2,60,61), >14 km/h [3.9 m/s] (34), >14.4 km/h [4 m/s] (28,57), >14.8 km/h [4.1 m/s] (58), >15 km/h [4.2] (8), >17 km/h [4.7 m/s] (42), >21 km/h [5.8 m/s] (45), individualized thresholds (23,35)), very-high-speed running (>19.8 km/h [5.5 m/s] (28), >23 km/h [6.4 m/s] (42)), sprint distance (>24 km/h [6.7 m/s] (45)), PlayerLoad (7,48), relative distance (7,8,34,61), high metabolic load distance (54,55), accelerations/decelerations (±2 m/s^ 2 (45), ±2.5 m/s^ 2 (40,60), ± 3 m/s^ 2 (28)), and total time on feet (23). One article quantified external load by timing minutes played in each match (26).…”

Section: Resultsmentioning

confidence: 99%

“…The only reported method of evaluating tissue-specific responses to training loads was using tensiomyography metrics including maximal radial displacement, contraction time, and contraction velocity of the rectus femoris and biceps femoris (45).…”

Section: Resultsmentioning

confidence: 99%

“…Tissue-specific readiness. The only reported method of evaluating tissue-specific responses to training loads was using tensiomyography metrics including maximal radial displacement, contraction time, and contraction velocity of the rectus femoris and biceps femoris (45). *Effect sizes are shown in figures without numerical representation; n/a 5 effect sizes were calculated but not directly reported.…”

Section: Structural Readinessmentioning

confidence: 99%

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Ready or Not, Here I Come: A Scoping Review of Methods Used to Assess Player Readiness Via Indicators of Neuromuscular Function in Football Code Athletes

Guthrie

Jagim

Jones

2022

Strength &Amp; Conditioning Journal

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A scoping review methodology was used to assess player readiness via indicators of neuromuscular function in response to training load. Literature search included PubMed, Web of Science, SportDiscus, and CINAHL. Search strategy was based on Population-Concept-Context framework evaluating football code athletes with the focus on player readiness in the context of longitudinal monitoring across quantified training loads with an emphasis on neuromuscular function. Demographics, frequency of data collection, methods of monitoring readiness, neuromuscular function, duration of monitoring period, and quantification of training loads were reported. Authors independently reviewed articles and, in the case of disagreement, a vote determined inclusion. The sports of rugby (n = 13) and soccer (n = 11) were most frequently examined, followed by Australian Rules Football (n = 6) and American Football (n = 1). The most common methods assessed systemic readiness with the primary focus on jump and sprint testing. Findings identified limited evidence supporting structural and tissue-specific monitoring tools. Player readiness assessment strategies have evolved with advances in technology and analytics. It is recommended that future research focus on a variety of populations, including youth and women athletes. This review is the first to summarize methods of assessing player readiness using indicators of neuromuscular function in football code athletes.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Structural Readinessmentioning

confidence: 99%

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Ready or Not, Here I Come: A Scoping Review of Methods Used to Assess Player Readiness Via Indicators of Neuromuscular Function in Football Code Athletes

Guthrie

Jagim

Jones

2022

Strength &Amp; Conditioning Journal

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“…Therefore, coaches and sports science practitioners should manipulate (Swallow et al, 2021 ) and monitoring (Ravé et al, 2020 ) the external training loads to properly periodize their training practices intending to minimize injury risk and optimize players' physical performance. Furthermore, due to the complexity of team sports performance, technical staff in soccer should prescribe daily training load fluctuations during a microcycle that may help to increase or maintain performance throughout the competitive in-season period (Rey et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Daily and weekly external loads in the microcycle: Characterization and comparison between playing positions on amateur soccer

Miguel

Cortez²,

Romero³

et al. 2022

Front. Sports Act. Living

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Ensuring adequate levels of training and recovery to maximize player performance is critical; however, there are methodological challenges in designing a periodized training program for soccer teams. This study aims to describe and characterize the daily and weekly external load in an amateur soccer team and based on the weighting factors determined by the match reference, compare the external loads between playing positions. Twenty-four amateur soccer players (22.3 ± 1.7 years) were monitored using a global positioning system. Data collected comprises 19 competitive microcycles with a standard structure composed of 3 training sessions (matchday-5, matchday-3, and matchday-2) and one match. Match-reference values were calculated as the mean of the five best values recorded during official matches. The results show, on matchday-5 session, the existence of significant differences between playing positions to relative total distance covered (p = 0.050), relative sprint distance (p = 0.001), relative moderate-intensity accelerations (p < 0.001), relative high-intensity accelerations (p = 0.003), relative moderate-intensity decelerations (p < 0.001), and relative high-intensity decelerations (p = 0.017). On matchday-3 session, there are significant differences to relative very high-speed running distance (p = 0.017) and relative moderate-intensity decelerations (p = 0.014). On matchday-2 session, there are significant differences to relative high-speed running distance (p = 0.025), relative very high-speed running distance (p = 0.008), and relative moderate-intensity decelerations (p < 0.001). Weekly significant differences are observed between the playing positions to relative moderate-intensity accelerations (p = 0.002), relative high-intensity accelerations (p < 0.001), and relative moderate-intensity decelerations (p < 0.001). The weekly load is characterized by a greater weighting on accelerations and decelerations, compared to distances at very-high speed and sprint. The training loads must respect a standard training model that contemplates the individualization of the physical demands of the match, for each playing position, as for each individual.

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“…This measurement is carried out under isometric conditions, in response to an electrical stimulus, and could provide important information on acute muscular responses to different exercise stimulus. Specifically, several investigations have highlighted the usefulness of TMG variables in detecting muscular changes following various kinds of exercise [16,17] and recovery methods [18][19][20][21]. In relation to recovery methods, published research has produced conflictive results regarding the effectiveness of different recovery strategies on TMG variables.…”

Section: Introductionmentioning

confidence: 99%

Is Low-Frequency Electrical Stimulation a Tool for Recovery after a Water Rescue? A Cross-Over Study with Lifeguards

Barcala-Furelos

González-Represas

Rey

et al. 2020

IJERPH

Self Cite

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This study aimed to evaluate the degree to which transcutaneous electrical stimulation (ES) enhanced recovery following a simulated water rescue. Twenty-six lifeguards participated in this study. The rescue consisted of swimming 100 m with fins and rescue-tube: 50 m swim approach and 50 m tow-in a simulated victim. Blood lactate clearance, rated perceived effort (RPE), and muscle contractile properties were evaluated at baseline, after the water rescue, and after ES or passive-recovery control condition (PR) protocol. Tensiomiography, RPE, and blood lactate basal levels indicated equivalence between both groups. There was no change in tensiomiography from pre to post-recovery and no difference between recovery protocols. Overall-RPE, legs-RPE and arms-RPE after ES (mean ± SD; 2.7 ± 1.53, 2.65 ± 1.66, and 2.30 ± 1.84, respectively) were moderately lower than after PR (3.57 ± 2.4, 3.71 ± 2.43, and 3.29 ± 1.79, respectively) (p = 0.016, p = 0.010, p = 0.028, respectively). There was a significantly lower blood lactate level after recovery in ES than in PR (mean ± SD; 4.77 ± 1.86 mmol·L−1 vs. 6.27 ± 3.69 mmol·L−1; p = 0.045). Low-frequency ES immediately after a water rescue is an effective recovery strategy to clear out blood lactate concentration.

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Acute effects of training load on contractile properties during a competitive microcycle in elite soccer players

Cited by 9 publications

References 29 publications

Ready or Not, Here I Come: A Scoping Review of Methods Used to Assess Player Readiness Via Indicators of Neuromuscular Function in Football Code Athletes

Ready or Not, Here I Come: A Scoping Review of Methods Used to Assess Player Readiness Via Indicators of Neuromuscular Function in Football Code Athletes

Daily and weekly external loads in the microcycle: Characterization and comparison between playing positions on amateur soccer

Is Low-Frequency Electrical Stimulation a Tool for Recovery after a Water Rescue? A Cross-Over Study with Lifeguards

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