scholarly journals The Dependence of Running Speed and Muscle Strength on the Serum Concentration of Vitamin D in Young Male Professional Football Players Residing in the Russian Federation

Nutrients ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1960 ◽  
Author(s):  
Eduard Bezuglov ◽  
Aleksandra Tikhonova ◽  
Anastasiya Zueva ◽  
Vladimir Khaitin ◽  
Anastasiya Lyubushkina ◽  
...  
Keyword(s):  
Vitamin D ◽  
Serum Concentration ◽  
Muscle Power ◽  
Football Players ◽  
Professional Football ◽  
Anthropometric Parameters ◽  
Running Speed ◽  
Jump Test ◽  
Standing Long Jump ◽  
Long Jump

Background: Vitamin D insufficiency is prevalent among athletes, and it can negatively affect physical performance. At the same time, most of the available data were obtained from untrained individuals of various ages, and published studies performed in athletes led to contradictory conclusions. Methods: This cohort prospective study examined the serum concentration of 25-hydroxycalciferol (25(OH)D) and its association with running speed and muscle power in 131 young football players (mean age 15.6 ± 2.4 years). Results: 25(OH)D levels were below reference in 42.8% (serum 25(OH)D <30 ng/mL) and above reference in 30.5% of the participants (serum 25(OH)D 61–130 ng/mL). A comparison of the results of 5, 15, and 30 m sprint tests and the standing long jump test found no statistically significant differences between the two groups. Athletes from the 25(OH)D-insufficient group were treated with 5000 IU cholecalciferol supplement daily for 60 days. After the treatment, the 25(OH)D concentration increased by 79.2% and was within reference in 84% of the treated athletes (serum 25(OH)D 30–60 ng/mL). Testing was repeated after the end of treatment, and a statistically significant increase in the results of the 5, 15, and 30 m sprint tests was observed (Cohen’s d was 0.46, 0.33, and 0.34, respectively), while the results of the standing long jump test remained unchanged. Body height, body weight, and lean body mass of the football players also increased. Conclusions: These findings indicate that there is likely no correlation between serum levels of 25(OH)D, muscle power, and running speed in young professional football players, and the changes observed post-treatment might have been caused by changes in the anthropometric parameters. During the study, all the anthropometric parameters changed, but the amount of lean body mass only correlated with the results of the 5 m sprint.

scholarly journals The Increased Effectiveness of Loaded Versus Unloaded Plyometric Jump Training in Improving Muscle Power, Speed, Change of Direction, and Kicking-Distance Performance in Prepubertal Male Soccer Players

2020 ◽  
Vol 15 (2) ◽  
pp. 189-195 ◽  
Author(s):  
Yassine Negra ◽  
Helmi Chaabene ◽  
Senda Sammoud ◽  
Olaf Prieske ◽  
Jason Moran ◽  
...  
Keyword(s):  
Muscle Power ◽  
Soccer Players ◽  
Sprint Time ◽  
Change Of Direction ◽  
Jump Training ◽  
Jump Test ◽  
Standing Long Jump ◽  
Long Jump ◽  
Time Test ◽  
Speed Change

Purpose: To examine the effects of loaded (LPJT) versus unloaded plyometric jump training (UPJT) programs on measures of muscle power, speed, change of direction (CoD), and kicking-distance performance in prepubertal male soccer players. Methods: Participants (N = 29) were randomly assigned to a LPJT group (n = 13; age = 13.0 [0.7] y) using weighted vests or UPJT group (n = 16; age = 13.0 [0.5] y) using body mass only. Before and after the intervention, tests for the assessment of proxies of muscle power (ie, countermovement jump, standing long jump); speed (ie, 5-, 10-, and 20-m sprint); CoD (ie, Illinois CoD test, modified 505 agility test); and kicking-distance were conducted. Data were analyzed using magnitude-based inferences. Results: Within-group analyses for the LPJT group showed large and very large improvements for 10-m sprint time (effect size [ES] = 2.00) and modified 505 CoD (ES = 2.83) tests, respectively. For the same group, moderate improvements were observed for the Illinois CoD test (ES = 0.61), 5- and 20-m sprint time test (ES = 1.00 for both the tests), countermovement jump test (ES = 1.00), and the maximal kicking-distance test (ES = 0.90). Small enhancements in the standing long jump test (ES = 0.50) were apparent. Regarding the UPJT group, small improvements were observed for all tests (ES = 0.33–0.57), except 5- and 10-m sprint time (ES = 1.00 and 0.63, respectively). Between-group analyses favored the LPJT group for the modified 505 CoD (ES = 0.61), standing long jump (ES = 0.50), and maximal kicking-distance tests (ES = 0.57), but not for the 5-m sprint time test (ES = 1.00). Only trivial between-group differences were shown for the remaining tests (ES = 0.00–0.09). Conclusion: Overall, LPJT appears to be more effective than UPJT in improving measures of muscle power, speed, CoD, and kicking-distance performance in prepubertal male soccer players.

scholarly journals „Z”-scores of anthropometric and motor parameters of girls in aerobic gymnastics

2014 ◽  
Vol 61 (2) ◽  
pp. 55-58
Author(s):  
M. Tibenská ◽  
H. Medeková
Keyword(s):  
Body Weight ◽  
Body Height ◽  
Sport Performance ◽  
Z Score ◽  
Anthropometric Parameters ◽  
Percentage Of Body Fat ◽  
Standing Long Jump ◽  
Z Scores ◽  
Long Jump ◽  
Shuttle Run

Abstract This study presents the evaluation of chosen anthropometric and motor parameters in group of female junior competitors throughout the course of 2-year preparation of aerobic gymnastics by means of Z-scores. The observed group consisted of 12 girls (average age at the beginning of observance 14.08 ± 1.19 years). Evaluation of anthropometric (body height, body weight, body mass index, percentage of body fat, acting body weight) and motor parameters (sit-ups in 30 seconds and 60 seconds, pull-ups to bar, modified push-ups, standing long jump, backwards tandem walking, shuttle run 4×10 m, Jacík’s test) was carried out in standard conditions in nine girls at 3-month intervals. It has been confirmed that female probands with higher Z-score of motor parameters together with lower Z-score of anthropometric parameters achieved higher sport performance during the 2-year observance at competitions, with an exception of one such proband.

scholarly journals HOW DOES PARTICIPATION IN PHYSICAL ACTIVITY AFFECT PHYSICAL FITNESS ELEMENTS IN CHILDREN AGED 5-9?

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Aslihan Buksur ◽  
Umut Canli ◽  
Cüneyt Taskin
Keyword(s):  
Physical Activity ◽  
Body Weight ◽  
Physical Fitness ◽  
Core Strength ◽  
Explosive Strength ◽  
Jump Test ◽  
Standing Long Jump ◽  
Significant Difference ◽  
Long Jump ◽  
Run Test

This study was conducted to examine the effect of participation in physical activity on physical fitness parameters in children aged 5-9 years. A total of 83 children, 44 girls, and 39 boys, studying in a private primary school participated in the study voluntarily. The Eurofit Test Battery was used to evaluate the physical fitness levels of children. Within the scope of the Eurofit test battery; the body weight and height values of the children were measured. In the determination of motoric performances, flamingo balance, disc touch, sit-reach, standing long jump, sit-up, bent-arm hanging, and 5x10 meter sit-up tests were used. A personal information form prepared by the researchers was used to determine demographic characteristics. Whether the data is normally distributed or not was checked with kurtosis and skewness values. In the statistical analysis dimension; descriptive analysis (mean, standard deviation, median, min-max value, ratio, frequency), independent samples t test (Independent Samples t test) were used. In terms of children having an athlete license, a significant difference was found in their height, standing long jump test, sit-up test, bent-arm hanging test, 5x10 meter sit-up run test scores (p>0.05). A significant difference was found in the findings of height, body weight, standing long jump test, sit-up test, bent arm hanging test, 5x10 meter sit-up run test in terms of children's participation in traditional children's games (p>0.05). As a result, it has been determined that children's having an athlete's license increases their height, explosive strength, core strength endurance, upper extremity strength endurance, agility, and again, the students' participation in traditional children's games has positive effect on height, body weight, explosive strength, core strength endurance, upper extremity strength endurance and agility. <p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0891/a.php" alt="Hit counter" /></p>

scholarly journals Short-Term FIFA 11+ Improves Agility and Jump Performance in Young Soccer Players

2020 ◽  
Vol 17 (6) ◽  
pp. 2017 ◽  
Author(s):  
Nebojša Trajković ◽  
Marko Gušić ◽  
Slavko Molnar ◽  
Draženka Mačak ◽  
Dejan M. Madić ◽  
...  
Keyword(s):  
Physical Performance ◽  
Performance Outcomes ◽  
Soccer Players ◽  
Control Group ◽  
Football Players ◽  
Short Term ◽  
Jump Performance ◽  
Warm Up ◽  
Standing Long Jump ◽  
Long Jump

Studies dealing with the effectiveness of the Fédération Internationale de Football Association (FIFA) 11+ prevention program to improve performance outcomes in children aged < 14 years are limited. This study aimed to point out the effects of the application of short-term FIFA 11+ warm-up program on physical performance in young football players. Participants were 36 youth male football players, divided into a FIFA 11+ (n = 19; mean (SD) age: 11.15 (0.79) y) and a control group (CG: n = 17; age: 10.87 (0.8) y) and trained for 4 weeks. Before and after the training period, standing long jump performance, agility, repeated sprint ability, sit and reach, and “30–15” intermittent fitness tests were assessed. A mixed ANOVA showed significant differences between the groups in the standing long jump test (FIFA 11+: 5.6% vs. CG: −1.9%) in favor of FIFA 11+ over CG. Additionally, the FIFA 11+ performance of the Illinois agility test was significantly better compared to the CG performance (FIFA 11+: −1.9% vs. CG: 0.03%). The main findings of this study suggest that just 4 weeks of implementation of the FIFA 11+ improves physical performance compared with traditional warm-up routines in young soccer players.

scholarly journals Vitamin D receptor gene polymorphisms and musculoskeletal injuries in professional football players

2015 ◽  
Vol 9 (5) ◽  
pp. 1974-1978 ◽  
Author(s):  
MYOSOTIS MASSIDDA ◽  
LAURA CORRIAS ◽  
VALERIA BACHIS ◽  
PAOLO CUGIA ◽  
FRANCESCO PIRAS ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin D Receptor ◽  
Gene Polymorphisms ◽  
Receptor Gene ◽  
Musculoskeletal Injuries ◽  
Football Players ◽  
Vitamin D Receptor Gene ◽  
Professional Football ◽  
Receptor Gene Polymorphisms

Relationship of the results from fitness test and points for performance in alpine skiing of the Czech national team of U14 and U16 categories in the season 2018/2019

2020 ◽  
Author(s):  
Jan Jurečka ◽  
Tomáš Horáček
Keyword(s):  
Alpine Skiing ◽  
Men And Women ◽  
Significance Level ◽  
National Team ◽  
Fitness Test ◽  
Motor Abilities ◽  
Jump Test ◽  
Standing Long Jump ◽  
Long Jump ◽  
Shuttle Run

The main motivation for the research is a verification of applicability of the fitness test as a predictor for specific alpine skiing performance of the Czech national team of U14 and U16 categories. We want to verify if the results from the fitness test correspond with points for the performance in alpine skiing disciplines (slalom, giant slalom, super giant slalom). In total, 42 men and women (U14 and U16 categories), members of the Czech national team, participated in the research. Participants were grouped by gender (women n=21, age 14.23 (± 1.04), men n = 21, age 14.19 (± 1.07)). Fitness test consisted of six individual tests and was used as a tool to examine the level of motor abilities (jumping over the Swedish bench, shuttle run 4 × 10m, standing long jump, hurdles agility run - boomerang test, twist test, 20m shuttle run - beep test). Points for the performance in alpine skiing show the best result from a single competition transferred to the points. In our research we were looking for relationship between the points from three different disciplines (slalom, giant slalom, super giant slalom) and the results from the fitness test. In the men category we found high correlation (at the significance level of p ˂ 0.05) between super giant slalom and standing long jump (r = -0.73; r² = 0.53), between super giant slalom and boomerang test (r = 0.62, r² = 0.38) and between super giant slalom and shuttle run 4 × 10m (r = 0.61, r² = 0.37). Small correlation was found between slalom and box jump test (r = -0.31, r² = 0.1), between slalom and twist test (r = -0.33, r² = 0.11) and between super giant slalom and twist test (r = -0.34, r² = 0.12). In women category we did not found high correlation (at the sig-nificance level of p ˂ 0.05). Small correlation was found between slalom and box jump (r = -0.31, r² = 0.1), between giant slalom and twist test (r = 0.01, r² = 0.0001), between super giant slalom and standing long jump (r = -0.03, r² = 0.0009) and between slalom and shuttle run 4 × 10m (r = -0.05, r² = 0.0025). Twist test had very small correlation in both men and women categories. We can say that it is not relevant for prediction of alpine skiing per-formance. Based on different significance of correlations between men and women (super giant slalom and standing long jump; slalom/super giant slalom and shuttle run 4 × 10m) it might be necessary to adjust fitness testing as a predictor of alpine skiing performance according to a gender.

Eficiency of Jumping Preparation in Younger Pupils in Athletics

2020 ◽  
Author(s):  
Ivan Čillík ◽  
Miriam Karperová
Keyword(s):  
Motor Performance ◽  
Vertical Jump ◽  
Lower Limbs ◽  
Training Process ◽  
Running Speed ◽  
Output Measurement ◽  
Arm Swing ◽  
Explosive Power ◽  
Standing Long Jump ◽  
Long Jump

The aim was to find out, compare and evaluate the eficiency of take-off preparation for selected indicators of motor performance in athletes in the category of younger pupils. The monitored group consisted of 5 girls (average age 12.4 ± 0.22 year) and 4 boys (average age 12.9 ± 0.12 year) regularly participating in the training process three times a week. During 8 weeks in the racing period, take-off preparation was applied in the training pro-cess, consisting of two different batteries of take-off drills. The take-off preparation took place two to three times a week, taking into account the participation of athletes in the race. We performed the following tests to determine the eficiency of the take-off preparation to change the level of motor performance in selected indicators: 50m run, 20m cursory run, standing long jump, vertical jump with countermovement without arm swing and repeated vertical take-off drills without arm swing in 10s. We found that in the output measurement, the athletes of monitored group achieved an improvement in motor performance in tests for explosive power of lower limbs and the maximum running speed tests.

Serum 25-hydroxyvitamin D in early autumn to ensure vitamin D sufficiency in mid-winter in professional football players

2012 ◽  
Vol 31 (1) ◽  
pp. 132-136 ◽  
Author(s):  
Fernando Galan ◽  
Juan Ribas ◽  
Pilar Ma Sánchez-Martinez ◽  
Tomás Calero ◽  
Antonio Barco Sánchez ◽  
...  
Keyword(s):  
Vitamin D ◽  
Football Players ◽  
Professional Football ◽  
Hydroxyvitamin D ◽  
Early Autumn ◽  
25 Hydroxyvitamin D

The Relationship between Age and Selected Kinematic Parameters of Standing Long Jump Test

2016 ◽  
Vol 24 (1) ◽  
pp. 237-242
Author(s):  
Marijana Hraski ◽  
Željko Hraski ◽  
Marija Lorger
Keyword(s):  
Kinematic Parameters ◽  
Jump Test ◽  
Standing Long Jump ◽  
Long Jump ◽  
The Relationship

scholarly journals Physical Fitness Testing and Screening Reveal a Gateway to Identify Locomotive Disorders: Retrospective Study of a Japanese Elementary School Population

2021 ◽  
Vol 8 ◽  
pp. 2333794X2110624
Author(s):  
Syuro Ito ◽  
Takahiko Fukumoto ◽  
Hidetaka Imagita
Keyword(s):  
Elementary School ◽  
Physical Fitness ◽  
Fitness Testing ◽  
Physical Fitness Test ◽  
Receiver Operating Characteristic Curves ◽  
School Based ◽  
Jump Test ◽  
Standing Long Jump ◽  
Long Jump ◽  
Physical Fitness Testing

This retrospective epidemiological study investigated the relationship between physical fitness testing and locomotive disorder screening results among elementary school children in Japan. The test and screening results of 1033 children from a single elementary school between 2016 and 2018 were examined. Multiple regression analysis was performed for each gender of children of grades third and fourth to generate receiver-operating characteristic curves. Of the 69 children with parent-identified locomotor problems, 29 (42%) had physical fitness test score of mean ± 2 SD. For the standing long jump test in fourth grade girls, the results differed significantly ( P < .001; cut-off, 127 cm) for children whose parents did (n = 7) and did not (n = 84) suspect a possible locomotive disorder. Physical fitness testing in combination with school-based screening for locomotive disorders may be useful for identifying and accurately diagnosing these disorders in children.

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