Relation between reaction time and specific function in volleyball players

2009 ◽  
Vol 8 (6) ◽  
pp. 395-399 ◽  
Author(s):  
Ronaldo Nascimento Maciel ◽  
Anderson Morales ◽  
Jeancleber Barcelos ◽  
Walter Nunes ◽  
Márcia Maria Azevedo ◽  
...  
Keyword(s):  
Reaction Time ◽  
Specific Function ◽  
Volleyball Players

scholarly journals The effect of female volleyball players’ leg volume and mass on balance and reaction timeBayan voleybolcuların bacak hacim ve kütlesinin denge ve reaksiyon zamanına etkisi

2015 ◽  
Vol 12 (2) ◽  
pp. 1296 ◽  
Author(s):  
Serkan İbiş ◽  
Rüçhan İri ◽  
Zait Burak Aktuğ
Keyword(s):  
Reaction Time ◽  
Significant Relationship ◽  
Dynamic Balance ◽  
Average Weight ◽  
Average Height ◽  
Measuring Device ◽  
Balance System ◽  
The Third ◽  
Volleyball Players ◽  
Visual Reaction

<p>In this study, it is aimed to investigate the relationship between leg volume - mass and balance – reaction time of the third league female volleyball players. 20 volunteer third league volleyball players, who are still active, are participated in this study. The average age of participant female volleyball players is 23,20±3,42 years, average height 176,30±7,78 cm, average weight 65.11±8,22 kg. Participant female volleyball players’ leg volume by Frustum method, leg mass by Hanavan method, static and dynamic balance by Biodex Balance System and visual reaction time by MOART Lafayette Reaction Measuring Device were measured. In analyzing the relation among the measurements, Pearson Product Moment Correlation coefficient was used. As a result of analysis of the obtained data; significant moderate correlation was found between the legs mass and dynamic balance (r=0.654, p&lt;0,05). It was determined with a highly significant relationship between leg mass and foot volume (r=0.913, p&lt;0,01) and foot mass (r=0.917, p&lt;0,01). Also a significant relationship was found between leg volume and foot volume (r=0.800, p&lt;0,01) and foot mass (r=0.644, p&lt;0,05).</p><p>Consequently; it can be said that there is a highly significant relationship between leg volume-mass and foot volume-mass, and there is a relationship between dynamic balance and leg mass of the third league female volleyball players.</p><p> </p><p><strong>Özet</strong></p><p>Bu çalışmada, üçüncü lig bayan voleybolcuların bacak hacimleri ile denge ve reaksiyon zamanları arasındaki ilişkinin incelenmesi amaçlanmıştır. Çalışmaya üçüncü ligde oynayan toplam 20 gönüllü bayan voleybolcu katılmıştır. Çalışmaya katılan bayan voleybolcuların yaş ortalamaları 23,20±3,42 yıl, boy ortalamaları 176,30±7,78 cm, ağırlık ortalamaları 65.11±8,22 kg’dır. Çalışmada katılan bayan voleybolcuların bacak hacmi Frustum yöntemi, bacak kütlesi Hanavan yöntemi, statik-dinamik denge ölçümü Biodex Denge Sistemi ve görsel reaksiyon zamanı ölçümleri MOART Lafayette Reaksiyon Ölçüm cihazı ile ölçülmüştür. Elde edilen ölçümler arasındaki ilişkiyi belirlemek amacıyla Pearson Çarpımlar Moment Korelasyon katsayısı kullanılmıştır. Elde edilen verilerin analizi sonucunda; bacak kütlesi ile dinamik denge arasında orta düzeyde (r=0.654, p&lt;0,05), bacak kütlesi ile ayak hacmi (r=0.913, p&lt;0,01) ve ayak kütlesi (r=0.917, p&lt;0,01) arasında yüksek düzeyde ilişki bulunurken; bacak hacmi ile ayak hacmi (r=0.800, p&lt;0,01) ve ayak kütlesi (r=0.644, p&lt;0,05) arasında ilişki tespit edilmiştir.</p><p>Sonuç olarak; çalışmadaki bulgular 3. Ligde oynayan bayan voleybolcuların bacak hacmi ve bacak kütlesinin ayak kütlesi ve ayak hacmi ile yüksek düzeyde ilişki gösterdiği, dinamik dengenin de bacak kütlesiyle ilişkili olduğu tespit edilmiştir.</p>

scholarly journals PSYCHOPHYSIOLOGICAL FEATURES OF VOLLEYBALL PLAYERS WITH HEARING IMPAIRMENT

2020 ◽  
Vol 20 (S1) ◽  
pp. 128-135
Author(s):  
O Litovchenko ◽  
A Maximova
Keyword(s):  
Nervous System ◽  
Reaction Time ◽  
Hearing Impairment ◽  
Symmetric Distribution ◽  
Functional Capabilities ◽  
Volleyball Players ◽  
Visual Reaction ◽  
The Central Nervous System ◽  
Motor Tests ◽  
The Right

Aim. The paper aims to reveal the features of the central nervous system and interhemispheric asymmetry in volleyball players with hearing impairment. Materials and methods. The study involved 14 athletes of various sports experience with varying degrees of hearing impairment aged from 20 to 35 years (average age 29.20 ± 1.3 years). Simple visual reaction was studied in terms of the reaction time, reaction stability, and functional capabilities of the nervous system. To establish the manual asymmetry, the M. Annette questionnaire and motor tests (dynamometry, tests for intertwined fingers, the applause test) were used, the coefficient of the right hand was calculated. When detecting visual asymmetry, the Rosenbach test and the telescope test were used. The coefficient of the right eye was also calculated. Results. It was established that a third of the examined athletes had a symmetric distribution of signs in both the visual and manual spheres. The reliable dependence between symmetric distribution and sports titles was not found. The reaction time in volleyball players with hearing impairment was reduced. The reaction stability and the level of functional capabilities were within the normal range and had a significant dependence on the sports rank and category. Conclusion. It was revealed that volleyball players with hearing impairment formed a special type of interhemispheric interaction characterized by a more uniform distribution between the right and left hemispheres, which resulted in low values of manual and visual asymmetry.

Effect of Distributed Versus Massed Practice on Reaction Time in Collegiate Volleyball Players: A Pilot Study

2021 ◽  
Author(s):  
Kiran Negi ◽  
SD Shahanawaz ◽  
Priya Chauhan ◽  
Basudeo Rajbhor
Keyword(s):  
Reaction Time ◽  
Pilot Study ◽  
Distributed Practice ◽  
P Value ◽  
Massed Practice ◽  
Significant Difference ◽  
Volleyball Players ◽  
Group A ◽  
The Mean ◽  
Group B

Introduction: Reaction Time (RT) is the time taken by an individual to respond to external stimuli. It is one of the most important determinant ability in sports like Volleyball. Shorter RT leads to higher performance and success in Volleyball. Two types of training methods, massed and distributed practice have been used in researches to improve RT and other sports related skills in sports. In massed practice, there is persistent workout with hardly any rest periods even of minimal time period relative to the work interval while in distributed practice; it is interspersed with rest or other skill learning. There are mixed evidences on effectiveness of these practice methods which has led to the present study. Aim: To find the effect of distributed practice and massed practice in terms of RT among collegiate volleyball players. Materials and Methods: The study design was quasi-experimental pilot study that was conducted at the volleyball academy Gurugram, Haryana, India from September 2019 to December 2019. A total of 30 players, aged 18-22 years, from college volleyball team were invited to participate in the study. Subjects were randomly divided into two groups. Group A received massed practice (n=15), and group B received distributed practice (n=15) for 40 minutes, four days a week for four weeks. Players who were practicing daily for one hour were included in this study and they were excluded if they had any condition that limited their participation in the study or if they are suffering from any type of orthopaedic or neurological illness. RT was measured using Ruler Drop Test (RDT) and Red Light Green Light Test (RLGL). Data was analysed using Statistical Package for the Social Sciences (SPSS) version 20.0 for statistical analysis. Results: The mean pre and post data of Group A, for RDT was 0.16 and 0.12 seconds, respectively; of Group B, it was 0.16 and 0.13. The mean pre and post data of Group A for RLGL was 0.42 and 0.38 seconds, respectively; Group B data for RLGL pre and post was 0.39 and 0.37 seconds, respectively. Both the groups showed significant improvement in scores of RDT (p-value for Group A=0.01, Group B=0.05) and RLGL (p-value for Group A=0.01, Group B=0.01) measured by the paired sample t-test (p<0.05). But there was no significant difference in between group analysis measured by independent sample t-test (p>0.05). Conclusion: This study showed that both massed and distributed practice was helpful in improving RT of collegiate volleyball players. As there was no significant difference between the two groups, consequently which practice method is superior in improving RT in collegiate volleyball players could not be stated.

Time of practice: a comparative study of the motor reaction time among volleyball players

2009 ◽  
Vol 8 (2) ◽  
pp. 103-109 ◽  
Author(s):  
Jeancleber Lotério Barcelos ◽  
Anderson Pontes Morales ◽  
Ronaldo Nascimento Maciel ◽  
Márcia Maria dos Anjos Azevedo ◽  
Vernon Furtado da Silva
Keyword(s):  
Reaction Time ◽  
Comparative Study ◽  
Motor Reaction ◽  
Motor Reaction Time ◽  
Volleyball Players

scholarly journals Reliability of a Reactive Agility Test for Youth Volleyball Players

2021 ◽  
Vol 28 (1) ◽  
pp. 8-12
Author(s):  
Ricardo Lima ◽  
Markel Rico-González ◽  
Joel Pereira ◽  
Francisco Caleiro ◽  
Filipe Clemente
Keyword(s):  
Reaction Time ◽  
Repeated Measures ◽  
Reaction Times ◽  
Cross Sectional Study ◽  
Wireless System ◽  
Cross Sectional ◽  
Coordination Test ◽  
Volleyball Players ◽  
Reactive Agility ◽  
Hand Eye Coordination

Abstract Introduction. This was a cross-sectional study aiming to test the reliability of a new reactive agility test designed for youth volleyball players to improve both reaction time and hand-eye coordination. Material and methods. Twenty-four youth volleyball athletes (15 girls and 9 boys) were recruited to participate in this study (age: 11.58 ± 2.20 years old). This study used a FitLight Trainer (FITLIGHT Sport Corp., Ontario, Canada), a wireless system using interconnected light-powered sensors, to measure reaction time and hand-eye coordination. The subjects performed the hand-eye coordination test twice, exactly one week apart, for 30 seconds, with three trials performed for each test. Repeated measures ANOVA was used to test the variation of the six trials performed during the two sessions. Results. The analysis comparing the sessions revealed significantly longer reaction time in session 1 than in session 2 (mean difference: 47.85 [95% CI: 10.86 to 84.84]; p < 0.012; ES = 0.128). Across the different trials, the greatest single ICC measure (ICC = 0.645) and average ICC measure (ICC = 0.784) were achieved in trial 3. Across the sessions, the greatest single ICC measure (ICC = 0.951) and average ICC measure (ICC = 0.863) were achieved in session 2. Conclusions. FitLight Trainer is a valid and reliable tool for developing reaction times of youth volleyball athletes.

scholarly journals ANKLE SPRAIN RISK FACTORS: A 5-MONTH FOLLOW-UP STUDY IN VOLLEY AND BASKETBALL ATHLETES

2019 ◽  
Vol 25 (3) ◽  
pp. 220-225 ◽  
Author(s):  
Adriana Moré-Pacheco ◽  
Flávia Meyer ◽  
Ivan Pacheco ◽  
Cláudia Tarragô Candotti ◽  
Juliana Adami Sedrez ◽  
...  
Keyword(s):  
Risk Factors ◽  
Reaction Time ◽  
Ankle Sprain ◽  
Previous History ◽  
Multivariate Logistic Regression Analysis ◽  
Extrinsic Factors ◽  
Level Of Evidence ◽  
Significant Difference ◽  
Volleyball Players

ABSTRACT Introduction Ankle sprain is a frequent sports injury among volley and basketball players, and identifying risk factors is necessary to prevent injuries and prolong their careers. Objective To identify intrinsic and extrinsic factors in basketball and volleyball players related to the risk of ankle sprain injury over a five-month follow-up period. Methods Ninety-four Brazilian young competitive athletes (15.8±1.7 years, 47 basketball and 47 volleyball players) participated in this study. They were evaluated for intrinsic risk factors (previous history of ankle sprain, dominant lower limb, ankle ligament laxity, range of motion of the ankle-foot complex, electromyographic response time of ankle evertors, postural control and muscular torque of ankle invertors and evertors) and extrinsic risk factors (type of shoes worn, use of orthosis, previous injuries while training or competing, and the players’ position). Results During the study period, 18 (19%) athletes suffered unilateral sprains. Multivariate logistic regression analysis gave a final regression with four factors: dominant leg (p=0.161), type of shoes worn (p=0.049), player’s position (p=0.153), and peroneus brevis muscle reaction time (p=0.045). There was an 86.1% probability of an ankle sprain if the athlete had a left dominant leg, wore shoes without vibration dampeners, or played in the small forward, wing/hitter spiker, middle blocker, or opposite spiker positions, and had a peroneus muscle reaction time longer than 80ms. However, only the player’s position was significantly (p=0.046) associated with lesion occurrence. Conclusion The player’s position appeared to be a risk factor in both sports, and this result may help professionals to prevent ankle sprains. Level of Evidence I; High quality randomized clinical trial with or without statistically significant difference but with narrow confidence intervals.

scholarly journals Relationship between Cognitive Functions and Sport-Specific Physical Performance in Youth Volleyball Players

2021 ◽  
Vol 11 (2) ◽  
pp. 227
Author(s):  
Athos Trecroci ◽  
Marco Duca ◽  
Luca Cavaggioni ◽  
Alessio Rossi ◽  
Raffaele Scurati ◽  
...  
Keyword(s):  
Reaction Time ◽  
Physical Performance ◽  
Motor Skills ◽  
Cognitive Functions ◽  
Flanker Task ◽  
Vertical Jump ◽  
Volleyball Players ◽  
Performance Context ◽  
Physical Abilities ◽  
D Value

The aim of this study was to investigate the relationship between basic cognitive functions and sport-specific physical performance in young volleyball players. Forty-three female volleyball players (age 11.2 ± 0.8 years) were tested for cognitive performance by measuring simple reaction time (clinical reaction time), executive control (Flanker task), and perceptual speed (visual search task). Moreover, a set of tests was used to assess physical abilities as volleyball-specific skills (accuracy of setting, passing, and serving) and motor skills (change of direction, vertical jump, and balance). A cumulated value for both cognitive and sport-specific physical performance tests was computed by adding up each test’s domain outcomes. Pearson’s r correlation analysis showed a large positive correlation (r = 0.45, d-value = 1.01) of the cumulated score summarizing cognitive functions with the cumulated score summarizing sport-specific physical performance. Moreover, small-to-medium correlations (d-value from 0.63 to 0.73) were found between cognitive and motor skills. Given the cumulative scores, these results suggest that volleyball athletes with superior basic cognitive functions present better sport-specific physical performance. Our findings encourage to extend the knowledge of the associations between cognitive and motor skills within a sports performance context.

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