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professional volleyball

Ingo Helmich
BACKGROUND: Concussions are common incidences in sports. However, game-specific characteristics such as tactics, field positions, etc. might positively/negatively contribute to the occurrence of mild traumatic brain injuries (mTBI) in various sports such as soccer, volleyball, handball, or basketball. Thus, the intention of this study was to analyze game- specific characteristics of concussive incidents in active players from the perspective of different sportive disciplines. METHODS: Four sport-specific questionnaires for soccer, handball, volleyball and basketball were established using an online survey tool...
September 14, 2016: Journal of Sports Medicine and Physical Fitness
Yong-Youn Kim, Kyoung-Ok Min, Jung-Hyun Choi, Soon-Hee Kim
[Purpose] The purpose of this study was to investigate differences in jumping ability and lower limb balance ability elicited by plyometric training and vibration exercise, of volleyball players with and without ankle injuries, which frequently occur among Korean professional volleyball players. [Subjects and Methods] Twenty-eight volleyball players were divided into the following groups: plyometric with ankle injury (PAI) group; plyometric with non-ankle injury (PAN) group; vibrator with ankle injury (VAI) group; and vibrator with non-ankle injury (VAN) group...
May 2016: Journal of Physical Therapy Science
Jarosław Kabaciński, Lechosław Bogdan Dworak, Michał Murawa, Agata Rzepnicka
PURPOSE: Dynamic loads during landings determined by the ground reaction forces (GRFs) may elaborate internal loads and increase the risk of overload knee injuries as a result of performing volleyball jumps many times. The study dealt with a biomechanical assessment of dynamic load indicators in female volleyball players for the motion sequence of take-off-landing in blocks and attacks. METHODS: Twelve professional female volleyball players participated in the study...
2016: Acta of Bioengineering and Biomechanics
M Grall-Bronnec, J Caillon, E Humeau, B Perrot, M Remaud, A Guilleux, B Rocher, A Sauvaget, G Bouju
BACKGROUND: In Europe, the prevalence of gambling disorders in the general population ranges from 0.15% to 6.6%. Professional Athletes (PAs) are known for having risk factors for addictive behaviors, such as young age or sensation seeking, though no study has yet tried to evaluate the prevalence of gambling and gambling disorders among this specific population. OBJECTIVE: To estimate the prevalence of gambling, problematic or not, amongst European PAs. To explore the factors that are associated with gambling practice and gambling problems in PAs...
April 25, 2016: Journal of Addictive Diseases
Mohammad Keilani, Timothy Hasenöhrl, Immanuel Gartner, Christoph Krall, Johannes Fürnhammer, Fadime Cenik, Richard Crevenna
BACKGROUND: The present study aims to describe knowledge about and usage of mental techniques to prepare before competitions and after sport-associated injuries (SAIs) by professional athletes (team sports) in Austria. METHODS: In this cross-sectional study, 191 professional athletes (basketball, football, hockey, ice hockey, and volleyball teams, m:f = 142:49, 24 ± 5, 18-39 years) filled in a questionnaire assessing socio-demographic data, duration/frequency of sport practice, rate and severity of SAIs...
May 2016: Wiener Klinische Wochenschrift
Stéphane Morin, Saïd Ahmaïdi, Pierre-Marie Leprêtre
PURPOSE: To see that positive and negative effects of training induce apparent oscillations of performance, suggesting that the delayed cumulative effects of training on daily performance capacity (DPC) are best fitted by sine waves damped over time. The aim of this study is to compare the criterion validity of Impulse Response (IR) model of Banister and damped harmonic oscillation model (DHO) for quantifying training load (TL)-DPC relationship. METHODS: Six female professional volleyball players (20...
February 9, 2016: International Journal of Sports Physiology and Performance
Rod Whiteley, Marc Oceguera
OBJECTIVES: Clinicians commonly interpret the findings of shoulder rotational ranges of motion using various approaches: an apparent reduction in dominant arm internal rotation ("GIRD"), a difference in total rotational range of motion-i.e. differences in the sum of internal and external rotational range (TRROM), and a combination of rotational ROM and torsional difference ("GIRD-torsion"). We have noticed that these approaches are being considered to provide equivalent estimates of shoulder rotational range...
October 2016: Journal of Science and Medicine in Sport
Michael K Drew, Caroline F Finch
BACKGROUND: Clinically it is understood that rapid increases in training loads expose an athlete to an increased risk of injury; however, there are no systematic reviews to qualify this statement. OBJECTIVE: The aim of this systematic review was to determine training and competition loads, and the relationship between injury, illness and soreness. METHODS: The MEDLINE, SPORTDiscus, CINAHL and EMBASE databases were searched using a predefined search strategy...
June 2016: Sports Medicine
M F Pastor, M Ezechieli, L Classen, O Kieffer, O Miltner
BACKGROUND: The volleyball game has a high complexity and thus entails a lot of strain to the players. Due to this high and different training and competition strain comprehensive and individual training plans should be developed with competing training objectives in order to prevent injuries. OBJECTIVE: The aim of the study was to analyse prospectively over six seasons the acute and overuse injuries of a German male professional volleyball team. METHODS: The study included 34 male national league players from season the 2007/08 to 2012/13...
2015: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
J Kabacinski, L B Dworak, M Murawa, J Ostarello, A Rzepnicka, J Maczynski
AIM: The purpose of the study was to compare the take-off dynamics in counter-movement jump (CMJ), volleyball block and spikes. METHODS: Twelve professional female players, representing the highest volleyball league in Poland, participated in the laboratory tests. A force platform was used to record ground reaction force (GRF) during take-off phase in CMJ test, block from a run-up and spikes: front row attack, slide attack, back row attack. Vertical (v) GRF (peak: Rmax and integral mean: <R>), impulse of vGRF (J) and mechanical power (peak: Pmax and integral mean: <P>) were analyzed...
September 1, 2015: Journal of Sports Medicine and Physical Fitness
Tomasz Halski, Robert Dymarek, Kuba Ptaszkowski, Lucyna Słupska, Katarzyna Rajfur, Joanna Rajfur, Małgorzata Pasternok, Agnieszka Smykla, Jakub Taradaj
BACKGROUND: Kinesiology taping (KT) is a popular method of supporting professional athletes during sports activities, traumatic injury prevention, and physiotherapeutic procedures after a wide range of musculoskeletal injuries. The effectiveness of KT in muscle strength and motor units recruitment is still uncertain. The objective of this study was to assess the effect of KT on surface electromyographic (sEMG) activity and muscle flexibility of the rectus femoris (RF), vastus lateralis (VL), and vastus medialis (VM) muscles in healthy volleyball players...
2015: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Jaymes D Granata, Gregory C Berlet, Terrence M Philbin, Grant Jones, Christopher C Kaeding, Kyle S Peterson
UNLABELLED: Nonunion, delayed union, and refracture after operative treatment of acute proximal fifth metatarsal fractures in athletes is uncommon. This study was a failure analysis of operatively managed acute proximal fifth metatarsal fractures in healthy athletes. We identified 149 patients who underwent operative treatment for fifth metatarsal fractures. Inclusion criteria isolated skeletally mature, athletic patients under the age of 40 with a minimum of 1-year follow-up. Patients were excluded with tuberosity fractures, fractures distal to the proximal metaphyseal-diaphyseal region of the fifth metatarsal, multiple fractures or operative procedures, fractures initially treated conservatively, and medical comorbidities/risk factors for nonunion...
December 2015: Foot & Ankle Specialist
Simon W Young, Jodie Dakic, Kathleen Stroia, Michael L Nguyen, Alex H S Harris, Marc R Safran
BACKGROUND: Isolated infraspinatus muscle atrophy is common in overhead athletes, who place significant and repetitive stresses across their dominant shoulders. Studies on volleyball and baseball players report infraspinatus atrophy in 4% to 34% of players; however, the prevalence of infraspinatus atrophy in professional tennis players has not been reported. PURPOSE: To investigate the incidence of isolated infraspinatus atrophy in professional tennis players and to identify any correlations with other physical examination findings, ranking performance, and concurrent shoulder injuries...
August 2015: American Journal of Sports Medicine
Giovanni Monteleone, Marco Gismant, Giorgio Stevanato, Alessandra Tiloca
UNLABELLED: While examining the shoulders of 91 professional and semi-professional beach volleyball players, the authors observed two cases of grave atrophy of the deltoid muscle following painless axillary neuropathy, not resulting from any trauma. The causes, the clinical history and the untreated history of the entrapment of the axillary nerve in the quadrilateral space in sportsmen, are discussed on the basis of the presentation of the two cases illustrated and from existing literature...
June 2015: International Journal of Sports Physical Therapy
Milena Nasi, Alessandro Cristani, Marcello Pinti, Igor Lamberti, Lara Gibellini, Sara De Biasi, Alessandro Guazzaloca, Tommaso Trenti, Andrea Cossarizza
PURPOSE: Exercise exerts various effects on the immune system, and evidence is emerging on its anti-inflammatory effects; the mechanisms on the basis of these modifications are poorly understood. Mitochondrial DNA (mtDNA) released from damaged cells acts as a molecule containing the so-called damage-associated molecular patterns and can trigger sterile inflammation. Indeed, high plasma levels of mtDNA are associated to several inflammatory conditions and physiological aging and longevity...
January 2016: International Journal of Sports Physiology and Performance
R A Centeno-Prada, C López, J Naranjo-Orellana
AIM: The goal of this study was to determine reference values of explosive strength for Spanish professional athletes using a force platform. Reference values are displayed as a sports-independent percentile distribution. METHODS: A total of 323 elite male athletes (age: 20.38 ± 4.65 years, body mass: 75.04 ± 14.30 kg, height: 178.62 ± 14.18 cm) from different disciplines performed the following test: squat jump (SJ), countermovement jump (CMJ), Abalakov test (AB), drop jump (DJ) and repeated jumps (RJ)...
May 2015: Journal of Sports Medicine and Physical Fitness
Lucia Mala, Tomas Maly, František Zahalka, Vaclav Bunc, Ales Kaplan, Radim Jebavy, Martin Tuma
The goal of this study was to identify and compare body composition (BC) variables in elite female athletes (age ± years): volleyball (27.4 ± 4.1), softball (23.6 ± 4.9), basketball (25.9 ± 4.2), soccer (23.2 ± 4.2) and handball (24.0 ± 3.5) players. Fat-free mass (FFM), fat mass, percentage of fat mass (FMP), body cell mass (BCM), extracellular mass (ECM), their ratio, the percentage of BCM in FFM, the phase angle (α), and total body water, with a distinction between extracellular (ECW) and intracellular water, were measured using bioimpedance analysis...
March 29, 2015: Journal of Human Kinetics
Robert M Zbeda, Peter K Sculco, Ekaterina Y Urch, Lionel E Lazaro, Olivier Borens, Riley J Williams, Dean G Lorich, David S Wellman, David L Helfet
BACKGROUND: Anterior tibial stress fractures are associated with high rates of delayed union and nonunion, which can be particularly devastating to a professional athlete who requires rapid return to competition. Current surgical treatment strategies include intramedullary nailing, which has satisfactory rates of fracture union but an associated risk of anterior knee pain. Anterior tension band plating is a biomechanically sound alternative treatment for these fractures. HYPOTHESIS: Tension band plating of chronic anterior tibial stress fractures leads to rapid healing and return to physical activity and avoids the anterior knee pain associated with intramedullary nailing...
July 2015: American Journal of Sports Medicine
Asghar Tofighee, Hossein Ali Khazaei, Arman Jalili
BACKGROUND: Research on the effects of exercise on immune function, has a wide range of sporting activities. Study on the long-term effects of regular exercise on serum levels of cytokines such as interleukin-17 have shown that moderate and regular exercise, has an important role in the prevention and treatment of many diseases. OBJECTIVES: Exhaustive exercise has a deep effect on cellular, humoral, innate immunity and the amount of cytokines of an athlete's immune system...
December 2014: Asian Journal of Sports Medicine
Cleber Ferraresi, Ricardo Vinicius Dos Santos, Guilherme Marques, Marcelo Zangrande, Roberley Leonaldo, Michael R Hamblin, Vanderlei Salvador Bagnato, Nivaldo Antonio Parizotto
Low-level laser (light) therapy (LLLT) has been applied over skeletal muscles before intense exercise (muscular pre-conditioning) in order to reduce fatigue and muscle damage (measured by creatine kinase, CK) in clinical trials. However, previous exercise protocols do not exactly simulate the real muscle demand required in sports. For this reason, the aim of this randomized and double-blind placebo-controlled trial was to investigate whether light-emitting diode therapy (LEDT) applied over the quadriceps femoris muscles, hamstrings, and triceps surae of volleyball players before official matches could prevent muscle damage (CK) with a dose response, establishing a therapeutic window...
May 2015: Lasers in Medical Science
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