CORRELATION OF SPECIFIC COORDINATION BY YOUNG FEMALE VOLLEYBALL PLAYERS AND PERFORMANCE LEVEL OF TECHNICAL ELEMENTS IN  VOLLEYBALL

Abstract The aim of the present study was to evaluate the age and inter- and intra-position differences in the anthropometric variables and physical performance in young female players of Brazilian women's volleyball. Fifty-eight female volleyball players participated, divided into 3 age groups: (a) 14 and under (n=20; mean age = 12.6±0.7 years), (b) between 14 and 17 (n=31; mean age = 15.6±1.2 years), and (c) over 17 (n=7; mean age = 18.9±0.9 years). In addition, the players were also divided according to their positions: setters (n=7), opposites (n=13), passer-hitters (n=17), middle blockers (n=12) and liberos (n=9). Anthropometric characteristics, flexibility, strength / resistance abdominal muscles, pushups, explosive power of the arms, jumping abilities, shuttle run and 20-m sprint tests were evaluated. Analyses showed differences among age and playing positions for the height and bone mass (p<0.05). In the fitness assessment, no differences were found between playing positions (p>0.05). However, differences were found among for age groups horizontal jump, shuttle run and 20-m sprint, with players >17 performing better than <14 and between 14-17 years of age (p<0.05). These results demonstrated that the height, bone mass and horizontal jump, shuttle run and 20-m sprint are age dependent, while physical performance independent on the playing positions.

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Změny kinetických charakteristik odrazu volejbalistů mládežnických kategorií v průběhu šesti měsíců

Studia sportiva ◽

10.5817/sts2011-1-3 ◽

2011 ◽

Vol 5 (1) ◽

pp. 25-32

Author(s):

Pavel Korvas ◽

Jaroslav Šamšula

Keyword(s):

Training Programme ◽

Performance Level ◽

Training Process ◽

Average Strength ◽

High Quality ◽

Volleyball Players ◽

And Performance ◽

Regular Training ◽

Very High

The authors compare four variables of an attack jump between two groups of volleyball players, juniors and cadets. We observed during six months average strength of rebound, maximal impulse of strength, the time of whole rebound and the time reaching maximal impulse of strength. Th e group of juniors had better results for every parameter but cadets reached the highest improvement. Th e younger group gets to positive changes in average strength during rebound by 17,4 %, and for the time of whole rebound about 16,6 %. Maximal impulse of strength was increased by 3,9 % and the time reaching maximal impulse of strength was shorter 14,4 %. Juniors reached smaller changes than cadets, for average strength during rebound 9,2 %, maximal impulse of strength was increased by 12,5 % and the time of whole rebound about 10,6 %. Th e value of maximal impulse of strength was worst by 5,2 %. Th e both groups realized training programme of a very high quality, juniors 342 hours and cadets 211 hour of trainings load. Th e diff erences in results and value of changes are consequences of maturity, time of regular training process and performance level of our groups.

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Anthropometric Characteristics and Vertical Jump Abilities by Player Position and Performance Level of Junior Female Volleyball Players

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18168377 ◽

2021 ◽

Vol 18 (16) ◽

pp. 8377

Author(s):

Suncica Pocek ◽

Zoran Milosevic ◽

Nemanja Lakicevic ◽

Kristina Pantelic-Babic ◽

Milka Imbronjev ◽

...

Keyword(s):

Vertical Jump ◽

Body Height ◽

Performance Level ◽

Performance Variables ◽

Performance Requirements ◽

Anthropometric Characteristics ◽

Volleyball Players ◽

Age Appropriate ◽

And Performance ◽

Women's Volleyball

Although absolute jump heights should be considered an important factor in judging the performance requirements of volleyball players, limited data is available on age-appropriate categories. The purpose of this study is to determine the differences in specific anthropometric characteristics and jumping performance variables in under−19 female volleyball players in relation to playing position and performance level. The sample of subjects consisted of 354 players who prepared for the U19 Women’s Volleyball European Championship 2020 (17.4 ± 0.8 years, 1.81 ± 0.07 m, 67.5 ± 7.1 kg). Playing positions analyzed were setters (n = 55), opposites (n = 37), middle blockers (n = 82), outside hitters (n = 137), and liberos (n = 43). The results showed player position differences in every performance level group in variables of body height, spike, and block jump. Observed differences are a consequence of highly specific tasks of different positions in the composition of the team. Players of different performance levels are significantly different, with athletes of higher-ranked teams achieving better results. The acquired data could be useful for the selection and profiling of young volleyball players.

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Even Pacing Is Associated with Faster Finishing Times in Ultramarathon Distance Trail Running—The “Ultra-Trail du Mont Blanc” 2008–2019

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17197074 ◽

2020 ◽

Vol 17 (19) ◽

pp. 7074 ◽

Cited By ~ 1

Author(s):

Daniel Suter ◽

Caio Victor Sousa ◽

Lee Hill ◽

Volker Scheer ◽

Pantelis Theo Nikolaidis ◽

...

Keyword(s):

General Linear Model ◽

Performance Level ◽

Age Group ◽

Younger Age ◽

Pacing Strategies ◽

And Performance ◽

Group Sex ◽

The Impact ◽

Trail Running ◽

One Way Anova

In recent years, there has been an increasing number of investigations analyzing the effects of sex, performance level, and age on pacing in various running disciplines. However, little is known about the impact of those factors on pacing strategies in ultramarathon trail running. This study investigated the effects of age, sex, and performance level on pacing in the UTMB® (Ultra-trail du Mont Blanc) and aimed to verify previous findings obtained in the research on other running disciplines and other ultramarathon races. Data from the UTMB® from 2008 to 2019 for 13,829 race results (12,681 men and 1148 women) were analyzed. A general linear model (two-way analysis of variance (ANOVA)) was applied to identify a sex, age group, and interaction effect in pace average and pace variation. A univariate model (one-way ANOVA) was used to identify a sex effect for age, pace average, and pace variation for the fastest men and women. In our study, pace average and a steadier pace were positively correlated. Even pacing throughout the UTMB® correlated with faster finishing times. The average pace depended significantly on sex and age group. When considering the top five athletes in each age group, sex and age group also had significant effects on pace variation. The fastest women were older than the fastest men, and the fastest men were faster than the fastest women. Women had a higher pace variation than men. In male competitors, younger age may be advantageous for a successful finish of the UTMB®. Faster male runners seemed to be younger in ultramarathon trail running with large changes in altitude when compared to other distances and terrains.

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Pacing in Time-Limited Ultramarathons from 6 to 24 Hours—The Aspects of Age, Sex and Performance Level

Sustainability ◽

10.3390/su13052705 ◽

2021 ◽

Vol 13 (5) ◽

pp. 2705

Author(s):

Hagen Deusch ◽

Pantelis T. Nikolaidis ◽

José Ramón Alvero-Cruz ◽

Thomas Rosemann ◽

Beat Knechtle

Keyword(s):

Analysis Of Variance ◽

Coefficient Of Variation ◽

Training Programs ◽

Performance Level ◽

Running Speed ◽

And Performance ◽

Main Effects ◽

And Training ◽

Age And Sex

(1) Background: Compared with marathon races, pacing in time-limited ultramarathons has only been poorly discussed in the literature. The aim of the present study was to analyze the interaction of performance level, age and sex with pacing during 6 h, 12 h or 24 h time-limited ultramarathons. (2) Methods: Participants (n = 937, age 48.62 ± 11.80 years) were the finishers in 6 h (n = 40, 17 women and 23 men), 12 h (n = 232, 77 women and 155 men) and 24 h (n = 665, 166 women and 409 men) ultramarathons. The coefficient of variation (CV), calculated as SD/mean, was used to described pacing. Low scores of CV denoted a more even pacing, and vice versa. A two-way analysis of variance examined the main effects and interactions of sex and race duration on age, race speed and pacing. (3) Results: More men participated in the longer race distances than in the shorter ones and men were older and faster than women. Comparing the 6 h, 12 h and 24 h races, the finishers in the 6 h were the fastest, the finishers in the 12 h were the oldest and the finishers in the 24 h showed the most variable pacing. Furthermore, the faster running speed in the 12 h (women, r = −0.64; men, r = −0.49, p < 0.001) and the 24 h (r = −0.47 in women and men, p < 0.001) was related to less variable pacing. (4) Conclusions: These data might help runners and coaches to choose the the proper duration of a race and training programs for their athletes.

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Game variables that predict success and performance level in elite men’s volleyball

International Journal of Performance Analysis in Sport ◽

10.1080/24748668.2021.1945879 ◽

2021 ◽

pp. 1-13

Author(s):

Sotirios Drikos ◽

Karolina Barzouka ◽

Maria-Elissavet Nikolaidou ◽

Konstantinos Sotiropoulos

Keyword(s):

Performance Level ◽

And Performance

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Examining frustration and performance when priming user expectations and providing a technology malfunction

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/1071181320641444 ◽

2020 ◽

Vol 64 (1) ◽

pp. 1846-1850

Author(s):

Nina Ferreri ◽

Christopher B. Mayhorn

Keyword(s):

Augmented Reality ◽

Technology Acceptance ◽

Digital Technology ◽

Mobile App ◽

Performance Level ◽

Qr Code ◽

Attitudes And Behaviors ◽

Main Effect ◽

User Expectations ◽

And Performance

As digital technology develops, users create expectations for performance that may be violated when malfunctions occur. This project examined how priming expectations of technology performance (high v. low v. no) and experiences of technology malfunction (present v. not present) can influence feelings of frustration and performance on a task. A preliminary sample of 42 undergraduate participants completed a QR code scavenger hunt using the augmented reality mobile app, ARIS. Following the task, participants reported what they found for each scavenger hunt clue, their responses to failures in digital technology, and technology acceptance attitudes. Several factorial ANOVAs revealed a main effect for expectation on adaptive items of the RFDT scale and a main effect for malfunction on performance level. This suggests a potential contradiction between attitudes and behaviors when considering a common scenario involving technology.

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