Comparison of usefulness of two tests measuring anaerobic performance of untrained and soccer-training girls U12

Jastrzębska, Agnieszka Danuta

doi:10.1038/s41598-023-46825-2

Cited by 2 publications

References 44 publications

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Performance and bilateral asymmetries of upper and lower extremity dynamic strength and balance in young soccer players

Sha,

Dai

2024

Preprint

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Background Quantification of asymmetry among upper and lower extremities is informative to assess whether an individual may be at risk of injury or performance deficits. In terms of sexes and age differences in functional movement, there is no consistent outcome. The present cross-sectional study aimed to investigate the effects of sex and age on performance and asymmetries in countermovement jump, landing, and upper and lower extremity balance tasks. Method 174 young soccer players (Age 7–9 yrs: 19 females and 15 males; Age 10 − 12 yrs.: 38 females and 30 males; Age 13–17 yrs.: 16 females and 25 males; Age > 18 yrs.: 15 females and 16 males) participated in the study. Countermovement Jump and Landing, Maximum Push-up, and upper and lower extremity balance tests were evaluated for each participant. A repeated measures (age groups × sex) analysis of variance (ANOVA) test was used to compare variables between sexes and age groups (p < .05). Whenever the ANOVA revealed a significant factor, pairwise comparisons were performed using Bonferroni corrections. Result Age played a significant role in peak force from landing, asymmetry of landing peak force, jump height, and peak force from push-up for the right and left sides. In terms of sex effects on dependent variables, statistical significances were observed for jump height, peak force from landing, and peak force from push-up. Except for the asymmetry of landing peak force, no statistical significance is observed in the effects of age and/or sex on the other asymmetry variables. Conclusion Soccer players may need more upper and lower-extremity dynamic balance training to improve dynamic balance over time. Landing technique training should be implemented for young age soccer players to decrease their high landing forces. Asymmetries should be evaluated on an individual basis as their relationships with age and sex were weak.

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Performance and bilateral asymmetries of upper and lower extremity dynamic strength and balance in young soccer players

Sha,

Dai

2024

Preprint

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Comparative Analysis of the Physical, Tactical, Emotional, and Mood Characteristics of Under-13 Soccer Players by Performance Level

Montenegro Bonilla,

Rodríguez Pachón,

Hernández-Beltrán

et al. 2024

JFMK

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Background and Objectives: Soccer is a sport characterized by various unpredictable situations in which physical abilities are associated with athletic performance. There are several capabilities that young soccer players must develop to adapt to the needs of the competition. This study analyzes the physical characteristics, tactical knowledge, emotional intelligence, and mood states of youth soccer players at different competitive levels. Materials and Methods: The sample consisted of 36 male soccer players with an average age of 12.65 ± 0.48 years, weight of 44.92 ± 7.49 kg, and height of 157.2 ± 0.08 cm. A cross-sectional correlational study design was selected. Inferential analysis was conducted via the RV coefficient to assess relationships between groups. Two-sample tests (Student’s t test or the Mann–Whitney U test) were used to assess the distribution of the samples. Standardized mean differences (i.e., Cohen’s d) were calculated as effect sizes. Results: For the yo-yo intermittent endurance test level 1, the Premier category showed higher speed (p = 0.01, d = 0.40) and superior estimated VO2max (p = 0.01, d = −0.91). The statistically significant variables included the hamstring strength exercise of the hamstrings for the angle of rupture (p = 0.04, d = −0.04, d = −0.72), the COD-Timer 5-0-5 for contact time—5-0-5 (ms) (p = 0.04, d = 0.69) and 10 m—5-0-5 (s) (p = 0.02, d = 0.79), tactical knowledge of in-game performance (p = 0.01, d = −1.19), support level (p = 0.01, d = −1.27), decision-making ability (p = 0.01, d = 0.59), melancholy (p = 0.01, d = 0.59), confusion (p = 0.01, d = 0.56), and emotional intelligence (p = 0.04, d = 0.77). The Premier category presented slightly higher averages than did category A. In the assessment of running-based anaerobic sprint test power (p < 0.05, d = 0.83) and mood states (p < 0.05, d = 0.59), players in category A presented higher results. Conclusions: The performance capacity of youth soccer players encompasses a multidimensional complexity that includes physical, tactical, emotional, and psychological aspects, which vary among players of the same age.

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Comparison of usefulness of two tests measuring anaerobic performance of untrained and soccer-training girls U12

Cited by 2 publications

References 44 publications

Performance and bilateral asymmetries of upper and lower extremity dynamic strength and balance in young soccer players

Performance and bilateral asymmetries of upper and lower extremity dynamic strength and balance in young soccer players

Comparative Analysis of the Physical, Tactical, Emotional, and Mood Characteristics of Under-13 Soccer Players by Performance Level

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