scholarly journals Effect of maturity timing on the physical performance of male Polish basketball players aged 13 to 15 years

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Karol Gryko
Keyword(s):  
Body Mass ◽  
Vertical Jump ◽  
Body Height ◽  
Basketball Players ◽  
Basic Body ◽  
Sports Programs ◽  
Endurance Tests ◽  
Motor Tests ◽  
The Individual ◽  
Stage 1

AbstractThe aims of this study were (i) to identify the motor potential and basic anthropometric characteristics of Polish basketball players aged 13 to 15 years, (ii) to demonstrate the effect of maturity timing on the results achieved in motor tests and basic body composition parameters, and (iii) to determine which index contributes most to the prediction of performance in the individual tests of speed, jumping ability, agility, and endurance. The sample included 818 male Polish players. Analysis of values related to age-adjusted characteristics showed that in the under 13-year-old group, early maturers had significantly better results (except for stage 1 in the agility test) than average maturers. However, in the endurance test in the under 14- and 15-year-old groups (both distance covered and VO2max), the average maturers obtained higher values. Furthermore, maturity differentiation in the under 14- and 15-year-old groups significantly affected body size, 20-m sprinting time (under 14-year-old group only), and the results of all jumping tests. ANCOVA results (age, body height, and body mass as covariates) showed better results of early maturers in the under 13-year-old group. The opposite trend was observed in the under 14- to 15-year-old groups, where early maturing individuals performed worse in the running vertical jump (VJ) and endurance tests (both distances covered and VO2max). Maturity timing (VJ and VO2max), chronological age (5 m, 10 m, 20 m, agility, and VO2max tests), body height (all tests), body mass (5 m), and the interaction between body mass and height (10 m, 20 m, agility, standing vertical jump, vertical jump) were significant (adjusted R2 = 0.08–0.25; p < 0.001) predictors of motor skills. These findings can be helpful in quantifying and controlling the results of youth sports programs adjusted to biological requirements used in the training process.

Does Predicted Age At Peak Height Velocity Explain Physical Performance In U13-15 Basketball Female Players?

2021 ◽  
Author(s):  
Karol Gryko ◽  
Jakub Grzegorz Adamczyk ◽  
Anna Kopiczko ◽  
Jorge Lorenzo Calvo ◽  
Alberto Lorenzo Calvo ◽  
...  
Keyword(s):  
Physical Fitness ◽  
Physical Performance ◽  
Body Mass ◽  
Body Height ◽  
Height Velocity ◽  
Stepwise Multiple Regression ◽  
Peak Height Velocity ◽  
Basketball Players ◽  
Basic Body ◽  
The Relationship

Abstract Background: The aims of the study were (i) to identify the physical fitness and basic anthropometric characteristics of Polish female basketball players aged 13 to 15 years, (ii) to show the effect of maturity timing on the performance in motor tests and basic body composition parameters, (iii) to identify the index that contributes most to the prediction of performance in the tests of speed, jumping ability, agility, and endurance. Methods: The sample included 925 female Polish players (U13-15). In part 1, maturity timing category distribution were examined within across age-groups. In part 2, the relationship between the anthropometric variables, physical fitness performance was assessed based on maturity timing categories (ANCOVA analysis). In part 3, backward stepwise multiple regression analyse quantified the relationship between maturity timing (group of PHV) and physical performance.Results: ANCOVA results (age, body height, and body mass as covariates) showed in the U13 female basketball players significantly higher sprinting (20m), jumping ability and endurance tests results of the PHV1 group.Better results was observed in U14 female players in PHV1 compared to PHV2 and PHV3 in 20m and jumping tests but opposite trend was observed for 5m sprint and endurance test (distance covered and VO2max). U15 basketball players from the PHV3 group were characterized by better results of jumping abilities, endurance, 10m and 20m sprint and agility (total, S4) tests. Maturity timing (10m), chronological age (5 m, 20 m, agility, SVJ, VJ, and VO2max tests), body height (10m), body mass (10m, 20m, VJ, VO2max), and the interaction between body mass and height (SVJ) were significant (adjusted R2 = 0.02-0.10; p < 0.001) predictors of motor skills. Conclusion: The results can help the coaches to personalize training programs and to adapt the training content to the biological age of the players.

scholarly journals Determining strength training needs using the force-velocity profile of elite female handball and volleyball players

2020 ◽  
pp. 174795412096404
Author(s):  
Leonidas Petridis ◽  
Gergely Pálinkás ◽  
Zsófia Tróznai ◽  
Bettina Béres ◽  
Katinka Utczás
Keyword(s):  
Velocity Profile ◽  
Strength Training ◽  
Body Mass ◽  
Female Athletes ◽  
Vertical Jump ◽  
Body Height ◽  
Maximum Velocity ◽  
Total Force ◽  
Volleyball Players ◽  
Force Velocity

The aim of this study was to assess the vertical jump performance and the force-velocity profile of elite female handball and volleyball players. Forty-one female athletes were measured, 28 handball players (age: 24.0 ± 3.6 years, body height: 1.75 ± 0.05 m, body mass: 69.0 ± 7.3 kg) and 13 volleyball players (age: 24.1 ± 5.2 years, body height: 1.83 ± 0.07 m and body mass: 74.9 ± 7.9 kg). All players performed unloaded and loaded countermovement jumps (CMJ) on a force platform. The theoretical maximal force ( F0), the theoretical maximum velocity ( v0), the theoretical maximal power ( Pmax), the slope of the F-v relationship ( Sfv) and the force-velocity imbalance ( FVimb) were calculated. Mean value of vertical jump height was 0.33 ± 0.03m, with no difference between handball and volleyball players. Mean values of F0, v0, Pmax, Sfv and FVimb for all players were 31.2 ± 2.6 N/kg, 3.10 ± 0.50 m·s−1, 24.2 ± 3.2 w/kg, -10.32 ± 2.09 Ns/m/kg and 28.1 ± 13.3% respectively. Two players had a low magnitude velocity-deficit, whereas most of the players exhibited a low to high force-deficit. A strong correlation was found between the ratio of measured to optimal F-v slope with the change in the proportion of net force to total force during unloaded and loaded conditions. The findings suggest that it would be beneficial for these athletes to first decrease their force deficit through mainly maximal strength training before implementing training to further maximize power output. Establishment of the F-v profile could be a useful diagnostic tool for coaches to optimize strength training and to design training intervention based on the individual need of each athlete.

scholarly journals The Relationship Between Muscle Strength, Anaerobic Performance, Agility, Sprint Ability and Vertical Jump Performance in Professional Basketball Players

2012 ◽  
Vol 31 (1) ◽  
pp. 149-158 ◽  
Author(s):  
Utku Alemdaroğlu
Keyword(s):  
Muscle Strength ◽  
Vertical Jump ◽  
Body Height ◽  
Field Tests ◽  
Anaerobic Performance ◽  
Basketball Players ◽  
Jump Performance ◽  
Professional Basketball ◽  
The Relationship ◽  
Sprint Ability

The Relationship Between Muscle Strength, Anaerobic Performance, Agility, Sprint Ability and Vertical Jump Performance in Professional Basketball PlayersThe purpose of this study was to investigate the relationship between isokinetic knee strength, anaerobic performance, sprinting ability, agility and vertical jump performance in first division basketball players. Twelve male first division basketball players participated in this study. The mean age was 25.1 ± 1.7 yrs; mean body height 194.8 ± 5.7 cm; mean body mass 92.3± 9.8 kg; mean PBF 10.1± 5.1; and mean VO2max50.55 ± 6.7 ml/kg/min. Quadriceps and hamstrings were measured at 60° and 180°/s, anaerobic performance was evaluated using the Wingate anaerobic power test, sprint ability was determined by single sprint performance (10-30 m), jump performance was evaluated by countermovement (CMJ) and squat jump (SJ) tests and agility performance was measured using the T drill agility test. Quadriceps strength was significantly correlated with peak power at all contraction velocities. However, for mean power, significant correlation was only found between the 60° left and 180° right knee quadriceps measurements. No measure of strength was significantly related to the measurements from/results of field tests. Moreover, strong relations were found between the performance of athletes in different field tests (p< 0.05). The use of correlation analysis is the limitation of the this study.

scholarly journals The Explosive Power And Speed Abilities Of Lower Extremities Of Young Basketball Players

2015 ◽  
Vol 55 (2) ◽  
pp. 112-121 ◽  
Author(s):  
Tatiana Gallová ◽  
Ladislava Doležajová ◽  
Anton Lednický ◽  
Kestutis Matulaitis ◽  
Mitja Bračič
Keyword(s):  
Body Mass ◽  
International Comparison ◽  
Body Height ◽  
Lower Extremities ◽  
Test Results ◽  
Countermovement Jump ◽  
Mass Measurements ◽  
Basketball Players ◽  
National Team ◽  
Explosive Power

SummaryThe authors compared selected somatic data and test results in 20 m sprint and countermovement jump (CJM) of 14-year-old Lithuanian players from Sabonis Center (LT, n=143; body height: 173.7 ± 8.99 cm; body mass: 59.30 ± 11.40 kg), and Slovenian (SLO, n=84; body height: 172.8 ± 9.96 cm; body mass: 60.10 ± 12.49 kg) and Slovak national team players (SVK, n=42, body height: 177.5 ± 9.07 cm; body mass: 63.32 ± 11.36 kg). The SVK players were divided into the narrow pick (A-team, n=16) and broader roster (B-team, n=26). Within the SVK groups, significant differences between the A-team and B-team have been found in terms of body height (p<0.05) and body mass measurements (p<0.01), and in the test 20 m sprint (p<0.05). In CMJ results, the differences of the A-team and B-team have not been statistically significant. In the international comparison SVK players were taller than SLO and LT players (p <0.05). In the test 20 m sprint SVK players have achieved significantly better results (LT p <0.05, SLO p <0.01). On the contrary, in CMJ test the results (height of the jump) of SVK players were significantly worse than SLO and LT players (p<0.01).

scholarly journals Anthropometric and Physical Fitness Differences Among Brazilian Adolescents who Practise Different Team Court Sports

2013 ◽  
Vol 36 (1) ◽  
pp. 77-86 ◽  
Author(s):  
Diego Augusto Santos Silva ◽  
Edio Luiz Petroski ◽  
Adroaldo Cesar Araujo Gaya
Keyword(s):  
General Population ◽  
Physical Fitness ◽  
Body Mass ◽  
Body Height ◽  
Cross Sectional Study ◽  
Basketball Players ◽  
Cross Sectional ◽  
Male Adolescents ◽  
Arm Span ◽  
Physical Abilities

The objective of this work was to compare the anthropometric and physical fitness characteristics of Brazilian adolescents who practise team court sports and to compare specific parameters obtained for adolescents with data from the general population. This was a cross-sectional study of 1,348 male adolescents grouped as follows: basketball players (n = 287), indoor soccer players (n = 665), handball players (n = 108) and volleyball players (n = 288), all between 10 and 14 years of age. Anthropometric (body mass, body height, arm span, and body mass index) and physical fitness data (flexibility, muscular strength, explosive power, speed, aerobic fitness and agility) were collected. The Brazilian population was used as a reference and compared to the adolescent subjects using Z scores for all variables. Anthropometric characteristics and performances in physical fitness tests differed (p<0.05) among players of different sports. In addition, for each variable assessed, adolescents who practised team court sports showed similar or improved results compared to their counterparts in the general population (p<0.05). Furthermore, the anthropometric and physical fitness characteristics differed depending on the team court sport practised. These findings may elucidate which physical abilities are most impacted by the practise of a particular team sport as well as help teachers and physical education and sport professionals identify talented adolescents.

scholarly journals Effects of ethnicity on the relationship between vertical jump and maximal power on a cycle ergometer

2016 ◽  
Vol 51 (1) ◽  
pp. 209-216 ◽  
Author(s):  
Majdi Rouis ◽  
Laure Coudrat ◽  
Hamdi Jaafar ◽  
Elvis Attiogbé ◽  
Henry Vandewalle ◽  
...  
Keyword(s):  
Body Mass ◽  
High Reliability ◽  
Vertical Jump ◽  
Linear Regression Analysis ◽  
Body Height ◽  
Lower Limbs ◽  
Jump Height ◽  
Maximal Power ◽  
Vertical Jump Height ◽  
The Impact

Abstract The aim of this study was to verify the impact of ethnicity on the maximal power-vertical jump relationship. Thirty-one healthy males, sixteen Caucasian (age: 26.3 ± 3.5 years; body height: 179.1 ± 5.5 cm; body mass: 78.1 ± 9.8 kg) and fifteen Afro-Caribbean (age: 24.4 ±2.6 years; body height: 178.9 ± 5.5 cm; body mass: 77.1 ± 10.3 kg) completed three sessions during which vertical jump height and maximal power of lower limbs were measured. The results showed that the values of vertical jump height and maximal power were higher for Afro-Caribbean participants (62.92 ± 6.7 cm and 14.70 ± 1.75 W∙kg-1) than for Caucasian ones (52.92 ± 4.4 cm and 12.75 ± 1.36 W∙kg-1). Moreover, very high reliability indices were obtained on vertical jump (e.g. 0.95 < ICC < 0.98) and maximal power performance (e.g. 0.75 < ICC < 0.97). However, multiple linear regression analysis showed that, for a given value of maximal power, the Afro-Caribbean participants jumped 8 cm higher than the Caucasians. Together, these results confirmed that ethnicity impacted the maximal power-vertical jump relationship over three sessions. In the current context of cultural diversity, the use of vertical jump performance as a predictor of muscular power should be considered with caution when dealing with populations of different ethnic origins.

scholarly journals Motor Learning of Complex Tasks with Augmented Feedback: Modality-Dependent Effectiveness

2021 ◽  
Vol 18 (23) ◽  
pp. 12495
Author(s):  
Jarosław Jaszczur-Nowicki ◽  
Oscar Romero-Ramos ◽  
Łukasz Rydzik ◽  
Tadeusz Ambroży ◽  
Michał Biegajło ◽  
...  
Keyword(s):  
Motor Learning ◽  
Body Mass ◽  
Visual Feedback ◽  
Vertical Jump ◽  
Body Height ◽  
Verbal Feedback ◽  
Complex Tasks ◽  
Significant Difference ◽  
Verbal Group ◽  
Post Test

Background: This paper aims to evaluate the effectiveness of feedback modalities in the motor learning of complex tasks. Methods: This study examined sixty-one male university students randomised to three groups: group Verbal (VER) = 20 (body height 178.6 ± 4.3 cm, body mass 81.3 ± 3.7 kg, age 20.3 ± 1.2 years), group Visual (VIS) = 21 (body height 179 ± 4.6 cm, body mass 82 ± 3.4 kg, age 20.3 ± 1.2 years), and group Verbal–Visual (VER&VIS) = 20 (body height 178.6 ± 4.3 cm, body mass 81.3 ± 3.7 kg, age 20.3 ± 1.2 years). The duration of the experiment was 6 months. Training sessions were performed three times per week (on Mondays, Wednesdays, and Fridays). The participants were instructed to perform a vertical jump with an arm swing (with forward and upward motion). During the jump, the participants pulled their knees up to their chests and grabbed their lower legs. The jump was completed with a half-squat landing, with arms positioned sideward. The jumping performance was rated by three gymnastic judges on a scale from 1 to 10. Results: A Tukey post hoc test revealed that in the post-test, a significant difference in the quality of performance was found between the Verbal group concerning errors combined with visual feedback on how to correct them (VER&VIS), the Verbal group concerning errors (VER), and the Visual group with visual feedback on the correctness of task performance (VIS). The ratings observed in the post-test were significantly higher in group VER&VIS than in groups VER and VIS (9%; p < 0.01 and 15%; p < 0.001, respectively). All judges’ ratings observed in group VER&VIS and VIS decreased insignificantly, but in group VER the ratings improved insignificantly. Conclusion: Providing verbal feedback combined with visual feedback on how to correct errors made in performing vertical jumps proved more effective than the provision of verbal feedback only or visual feedback only.

scholarly journals BODY HEIGHT, BODY MASS, BODY MASS INDEX OF ELITE BASKETBALL PLAYERS IN RELATION TO THE PLAYING POSITION AND THEIR IMPORTANCE FOR SUCCESS IN THE GAME

2021 ◽  
pp. 74-79
Author(s):  
Milan Anđelić ◽  
Marko Joksimović ◽  
Aleksandar Kukrić ◽  
Elvira Nikšić ◽  
Stefania D'Angelo ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
Body Height ◽  
Morphological Characteristics ◽  
Basketball Players ◽  
Professional Basketball ◽  
Basketball Game ◽  
Overall Performance ◽  
Different Levels

The morphological characteristics of elite basketball players are of great interest to some authors in order to define the best morphological profile for a particular playing position and different levels of competition. The aim of the research was to determine the differences in morphological characteristics in professional basketball players in relation to the playing position in different league competitions and to determine the relevance of these characteristics for success in the game. The survey included a sample of 773 elite basketball players competing in five different leagues in Europe. In our study, we found that centers are significantly taller and heavier than guards and forwards are. In addition to other components of basketball (technique, tactics, coach strategy), body height, body mass and body mass index play a major role in overall performance in a basketball game in all positions. The obtained data can help coaches in the scouting process in which leagues in Europe are played by players with certain morphological characteristics in relation to the playing position.

scholarly journals RELIABILITY AND VALIDITY OF CHANGE-OF-DIRECTION SPEED TESTS FOR JUNIOR BASKETBALL PLAYERS

2021 ◽  
pp. 535
Author(s):  
Nenad Selaković ◽  
Željko Krneta
Keyword(s):  
Body Mass ◽  
High Reliability ◽  
Body Height ◽  
Reliability And Validity ◽  
Internal Validity ◽  
Principal Component ◽  
Test Body ◽  
T Test ◽  
Basketball Players ◽  
Change Of Direction

The main goal of this study was to determine the reliability and validity of change-of-direction speed (CODS) tests for junior basketball players and to test the differences between the positions of players on the team. On a sample of 66 junior basketball players (18.2±3.18 years), the CODS was tested using the following tests: the Lane Agility Test (LAT), Zigzag Agility Test (ZAT), Agility T-test and Modified Agility T-test. Body height and body mass were used as control variables. α-Cronbach's coefficient was calculated to determine the reliability and internal consistency of the measurements, as well as the average correlation between the trials of each test. The difference between groups of players was tested by MANCOVA. CODS tests showed good to high reliability (interclass correlations ranged from 0.83-0.93 with a variability of 4.4% to 6.4% for the entire sample). The first principal component was determined, which included 83% of the total variance of the analyzed variables. Very high coefficients of internal validity of all the applied tests (0.93-0.98) were obtained on the common subject of defined measurements. Significant differences were found between groups of players by position in favor of outside players (guards) on two tests LAT and ZAT (F=18.023; 8.559 and p≤0.005) with control of the influence of body height and body mass. All tests can be rated as reliable and valid for junior basketball players. LAT proved to be the most suitable for assessing the CODS in young basketball players, with the best discrimination of players by position on the team.

scholarly journals The Relationship Between Reactive Agility and Change of Direction Speed in Professional Female Basketball and Handball Players

2021 ◽  
Vol 12 ◽  
Author(s):  
Marek Popowczak ◽  
Ireneusz Cichy ◽  
Andrzej Rokita ◽  
Jarosław Domaradzki
Keyword(s):  
Body Mass ◽  
Body Height ◽  
Anthropometric Parameters ◽  
Basketball Players ◽  
Change Of Direction ◽  
Significant Difference ◽  
Anthropometric Features ◽  
Reactive Agility ◽  
Partial Correlations ◽  
The Difference

Assessing the physical ability of players to perform change of direction and the cognitive and motor abilities revealed in reactive agility (RA) is necessary to understand the physical requirements and capabilities of professional players in handball and basketball. The main aim of this study was to determine the differences between professional female basketball and handball players in terms of anthropometric features, change of direction speed (CODS), and the RA task. Moreover, the relationships among anthropometric features, agility, and parameters of perception were determined. Two scenarios of the Five-Time Shuttle Run to Gates test (planned and unplanned) were used to evaluate the CODS and RA. The response time (RT) was also measured in the unplanned scenario. Additionally, the index of reactivity (REAC-INDEX) was specified as the difference between the RA test result and the measurement of CODS. There was a significant difference found in terms of body height, with basketball players being taller than handball players (p = 0.032). Professional female handball players achieved better results than professional female basketball players with regard to RA tasks (p = 0.01) and CODS (p = 0.041). Significant simple correlations between each anthropometric feature (body height, body mass) and values for CODS and RA were observed (r = 0.49–0.53). Applying partial correlation allowed for the assessment of actual relationships among CODS, RA, RT, and REAC-INDEX, without a confounding variable. Detaching the anthropometric parameters from the rest of the relationships resulted in maintenance or changes in r-values and an increased significance in the relationships between each pair: RA vs. RT, RA vs. REAC-INDEX, and RT vs. REAC-INDEX. The strongest associations were related to RT vs. REAC-INDEX (r = 0.97 at detaching body height or body mass, p &lt; 0.001) and CODS vs. RA (r = 0.66 at detaching body height and r = −0.67 at detaching body mass, p &lt; 0.001). It is recommended to use partial correlations in subsequent studies, as simple correlations are not reliable and may not reveal the apparent relationships between the variables. In addition, when determining the CODS and RA, it is suggested to take anthropometric and perception variables into account, such as reaction time or REAC-INDEX.

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