Conclusion: The moderate to large relationships found between all measures of load and changes in physical capacities suggest that training prescription during the PREP was effective in improving players' fitness. The magnitude of the relationships reduced during the first competitive period (d= 0.43 to 0.56) and the relationships became trivial in the second competitive period (d= 0.06 to 0.41, p= 0.063 to 0.846). Results: Relationships between load measures (training and match duration, sRPE-TL, total distance, high and very high-speed running distances) and changes in physical qualities were stronger during the preparation period (PREP) for both aerobic fitness (d= 0.48 to 0.76, p<0.031) and intermittent running capacity (d= 0.46 to 1.89, p<0.046). Methods: Training load, aerobic fitness and intermittent running capacity of 52 male adult professional players from 3 elite teams were monitored across an entire season and analyzed employing linear mixed models, with a significance level set at p≤0.05. The aim of the present study was to investigate the dose-response relationships between load measures and changes in aerobic fitness and intermittent running capacity among a large cohort of professional soccer players. Purpose: Understanding the dose-response relationship between internal and external training load with changes in aerobic fitness and intermittent running capacity, during different periods of the season, may help in optimizing training process. Players while planning their training program, as this information can influence the performance and overall Soccer teams need to incorporate the monitoring of haematological parameters of Showed that exercising through high intensity SSGs can cause specific metabolic effects on the haematological 05).įinally, Monocytes, Eosinophils and Pct did not show any statistically significant change. On the contrary, a significant decrease was observed in Lymphocytes (p <. Leukocyte series a significant increase was observed in Wbc (p <. The results showed a significant decrease in the second Used to test the correlation between the variables. Used to compare the repeated measures of the variables (pre-post), while the Pearson correlation index (r) was The Wilcoxon Test (Z) and the Effect Size (r) were Of the haematological profile and the levels of cell damage. Blood samples were collected before and immediately after the six SSGs to examine any potential changes The size of the pitch was 30m in length and 20m wide and the SSGs took place in a pitch with artificial Soccer players, aged 18.3 ± 1 years old, who participated in six SSG’s (4 vs 4 + 2 GK), each lasting 4 min with 3 The sample consisted of eight U20 Greek Super League elite level In U20 elite players in professional league. The aim of this study was to examine the changes in blood parameters caused during Small-Sides Games (SSGs)
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