Validity of the Blast Athletic Performance Monitor for Assessing Vertical Jump Height in Female Volleyball Players

2018 ◽  
Vol 23 (2) ◽  
pp. 99-109
Author(s):  
Alexander H.K. Montoye ◽  
Joe Mitrzyk
Keyword(s):  
Athletic Performance ◽  
Vertical Jump ◽  
Jump Height ◽  
Vertical Jump Height ◽  
Volleyball Players ◽  
Performance Monitor

The effect of assisted jumping on vertical jump height in high-performance volleyball players

2011 ◽  
Vol 14 (1) ◽  
pp. 85-89 ◽  
Author(s):  
Jeremy M. Sheppard ◽  
Andrew A. Dingley ◽  
Ina Janssen ◽  
Wayne Spratford ◽  
Dale W. Chapman ◽  
...  
Keyword(s):  
High Performance ◽  
Vertical Jump ◽  
Jump Height ◽  
Vertical Jump Height ◽  
Volleyball Players

scholarly journals Socialization and Training at Gloria Muda Volleyball Club

2021 ◽  
Vol 2 (1) ◽  
pp. 135-142
Author(s):  
Edi Irwanto ◽  
Danang Ari Santoso ◽  
Bayu Septa Martaviano Triaiditya ◽  
Marki Sandi ◽  
Dadang Mubin
Keyword(s):  
Training Program ◽  
Vertical Jump ◽  
Technical Skills ◽  
Jump Height ◽  
Basic Technique ◽  
Physical Conditions ◽  
Direct Training ◽  
Vertical Jump Height ◽  
Volleyball Players ◽  
And Training

The purpose of this service is to provide socialization and training at Gloria Muda Tambakrejo volleyball club, Bulurejo Village, Purwoharjo District, Banyuwangi Regency. The method used in this service is discussion and direct training (demonstration and practice) to the coaches and volleyball players of Gloria Muda Tambakrejo. The result of this activity was that the volleyball club coach Gloria Muda Tambakrejo gained new insights regarding the training program and how to train and was able to develop a training program that could be used to develop the technique and game of the Tambakrejo volleyball club. Young Gloria club players get training programmed according to the training program that suits their needs. Increased basic technical skills of passing, smash and vertical jump height of club players Gloria Muda Tambakrejo. Increased skills of passing and smash techniques and physical conditions (vertical jump) by 6.17%. For the basic technique of passing, there was an increase of 9, 53%. For the basic smash technique there is an increase of 3.20%. For the ability to vertical jump there is an increase of 3, 87%.

scholarly journals Ankle Orthosis-induced Decrease in Repetitive Rebound Jump Height: Relationship With Restriction in Sagittal Ankle Range of Motion

2021 ◽  
Author(s):  
Morikawa Masanori ◽  
Maeda Noriaki ◽  
Komiya Makoto ◽  
Kobayashi Toshiki ◽  
Urabe Yukio
Keyword(s):  
Range Of Motion ◽  
Athletic Performance ◽  
Contact Time ◽  
Peak Power ◽  
Vertical Jump ◽  
Reaction Force ◽  
Jump Height ◽  
Vertical Ground Reaction Force ◽  
Vertical Jump Height ◽  
Vertical Ground

Abstract Background: Ankle orthotics decreases the maximal vertical jump height. It is essential to maximize jump height and minimize ground contact time during athletic performance. However, the effect of ankle orthotics on athletic performance has not been reported. We aimed to investigate the effect of ankle orthotics on squat jump (SJ), countermovement jump (CMJ), and repetitive rebound jump (RJ) performance and the relationship between jump performance and restriction in sagittal ankle range of motion. Methods: Twenty healthy volunteers performed SJ, CMJ, repetitive RJ under no-orthosis and two orthotic conditions (orthosis 1 and orthosis 2). During SJ and CMJ, we measured the vertical ground reaction force and calculated the following parameters: jump height, peak vertical ground reaction force, rate of force development, net vertical impulse, and peak power. During repetitive RJ, the jump height, contact time, and RJ index were measured. A two-dimensional motion analysis was used to quantify the ankle range of motion in the sagittal plane during SJ, CMJ, and repetitive RJ. Results: Multivariate analysis of variance and the post hoc test showed a significant decrease in the vertical jump height (p = 0.003), peak power (p = 0.007), and maximum plantarflexion and dorsiflexion angles (p <0.001) during SJ using orthosis 2 compared to those using the no-orthosis condition. Additionally, orthosis 2 significantly decreased the jump height at the end of repetitive RJ (p = 0.046), during which a significant negative correlation was found between jump height and maximum dorsiflexion angle (r = 0.485, p = 0.030). Conclusions: An ankle orthosis-induced restriction of dorsiflexion is associated with a reduction in jump height during static jump and repetitive RJ performance.

scholarly journals Strength and vertical jump performance changes in elite male volleyball players during the season (Cambios en el rendimiento en fuerza y salto vertical en jugadores de élite masculinos de voleibol durante la temporada)

Retos ◽  
2018 ◽  
pp. 291-294
Author(s):  
Miguel Sánchez Moreno ◽  
Carlos García Asencio ◽  
Juan José González Badillo ◽  
David Díaz Cueli
Keyword(s):  
Beneficial Effect ◽  
Strength Training ◽  
Physical Performance ◽  
Lower Limb ◽  
Vertical Jump ◽  
Jump Height ◽  
Jump Performance ◽  
Vertical Jump Height ◽  
Competitive Season ◽  
Volleyball Players

Abstract. This study aimed to analyze the effect of strength training on physical performance in elite male volleyball players during the competitive season. Athletes were assessed at the start of season (SS), midpoint of the competitive season (MS), and at the end of the season (ES). Significant increases were observed in vertical jump height (CMJ), jump squat height (JS) and mean propulsive velocity (MPV) from SS to ES (P < 0.05). Likely beneficial increases were observed on CMJ from SS to MS, on JS from SS to MS and from MS to ES. In addition, likely beneficial effect was found on MPV from MS to ES. Over the full season (SS to ES), very likely beneficial effect was observed on CMJ, MPV and JS. In conclusion, increase in strength of lower limb and vertical jump can be achieved in professional volleyball players over a full playing season. Resumen. El objetivo del estudio fue analizar los efectos de un programa de entrenamiento de fuerza sobre el rendimiento en la fuerza del miembro inferior y la capacidad de salto vertical en jugadores de voleibol masculinos durante la temporada de competición. Los atletas fueron evaluados al inicio (SS), a la mitad (MS) y al final de la temporada (ES). Se observaron aumentos significativos en la altura del salto vertical (CMJ), del salto con cargas (JS) y en la velocidad media propulsiva (MPV) alcanzada con las cargas comunes en el ejercicio de sentadillas entre SS y ES (P < 0.05). El análisis basado en la magnitud del cambio reveló un aumento probable en CMJ de SS a MS, y en JS de SS a MS y de MS a ES. Además, un incremento probable se encontró en MPV de MS a ES. Durante la temporada completa (SS a ES), se observó un aumento muy probable en CMJ, en MPV y JS. En conclusión, se puede lograr un aumento en la fuerza de la extremidad inferior y el salto vertical en jugadores profesionales de voleibol durante una temporada de juego completa.

scholarly journals Effects of Plyometric Training on Surface Electromyographic Activity and Performance during Blocking Jumps in College Division I Men’s Volleyball Athletes

2020 ◽  
Vol 10 (13) ◽  
pp. 4535
Author(s):  
Min-Hsien Wang ◽  
Ke-Chou Chen ◽  
Min-Hao Hung ◽  
Chi-Yao Chang ◽  
Chin-Shan Ho ◽  
...  
Keyword(s):  
Tibialis Anterior ◽  
Vertical Jump ◽  
Rectus Femoris ◽  
Electromyographic Activity ◽  
Median Frequency ◽  
Jump Height ◽  
Plyometric Training ◽  
Vertical Jump Height ◽  
Male College ◽  
Volleyball Players

In volleyball matches, there are three minute intervals between sets. Therefore, the improvement of the muscle output ratio is one of the most import foundational physical elements for the players. The purpose of this study was to investigate the effects of plyometric training on the changes in electrical signals in the lower limb muscles of male college volleyball players during continuous blocking and to examine the benefits of plyometric training on blocking agility and maximum vertical jump height. In this study, twenty elite male college volleyball players were recruited and divided into a plyometric training group (PTG) and a control group (CG). The wireless electromyography was used for data acquisition, and the electrodes were applied to the left and right rectus femoris, biceps femoris, tibialis anterior, and gastrocnemius. The median frequency was used as the measurement of the electromyographic signals during the jumping blocks. This study used covariate analysis methods, with previously measured results used as covariates to perform a two-way analysis of covariance for the independent samples. Based on the results of this study, after 6 weeks of training, the median frequency of the rectus femoris (2.13% to 4.75% improved) and that of the tibialis anterior muscles (4.14% to 7.71% improved) were significantly lower in the PTG than in the CG. Additionally, the blocking agility increased by 6.26% and the maximum vertical jump height increased by 3.33% in the PTG compared to the CG. The findings provide important insights on the neuromuscular status for volleyball players during continuous blocking jumps. Six weeks of appropriate plyometric training can facilitate the performance of volleyball players.

Relationships Between Hoffman Reflex Parameters, Trait Stress, and Athletic Performance

2018 ◽  
Vol 125 (4) ◽  
pp. 749-768 ◽  
Author(s):  
Rasool Bagheri ◽  
Mohammad Reza Pourahmadi ◽  
Rozita Hedayati ◽  
Ziaeddin Safavi-Farokhi ◽  
Atefeh Aminian-far ◽  
...  
Keyword(s):  
Athletic Performance ◽  
Vertical Jump ◽  
High Stress ◽  
Performance Testing ◽  
Jump Height ◽  
Vertical Jump Height ◽  
Hoffman Reflex ◽  
Training History ◽  
And Performance ◽  
Gastrocnemius Muscles

This study evaluated the relationships between trait stress, Hoffman reflex, and performance among 36 healthy amateur male athletes. We first obtained a trait stress questionnaire from participants and then assigned them to high- and low-stress groups. We next recorded Hoffman reflex data from the soleus and lateral gastrocnemius muscles and then examined their athletic performance on testing protocols separated by a 72-hour washout period. Performance testing utilized vertical jump height, 20 -m sprint time, and standing stork tests. There were significant correlations between (a) the standing stork test, vertical jump height, and trait stress and (b) Hmax/ Mmax ratios, threshold intensity ( Hth), the intensity of the Hmax, and the intensity of the Hlast. Hth, the intensity of Hmax, and the intensity of Hlast were significantly higher among the low-stress compared with the high-stress participant groups ( p < .05), despite participants’ similar training history. We suggest that self-perceived psychological stress affects performance through neural adaptation.

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