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https://www.readbyqxmd.com/read/29315832/a-valid-and-reliable-method-to-measure-jump-specific-training-and-competition-load-in-elite-volleyball-players
#1
Christopher Skazalski, Rod Whiteley, Clint Hansen, Roald Bahr
PURPOSE: Use of a commercially available wearable device to monitor jump load with elite volleyball players has become common practice. The purpose of this study was to evaluate the validity and reliability of this device, the Vert, to count jumps and measure jump height with professional volleyball players. METHODS: Jump count accuracy was determined by comparing jumps recorded by the device to jumps observed through systematic video analysis of three practice sessions and two league matches performed by a men's professional volleyball team...
January 6, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29158725/nutritional-supplement-practices-of-professional-ugandan-athletes-a-cross-sectional-study
#2
Haruna Muwonge, Robert Zavuga, Peninnah Aligawesa Kabenge, Timothy Makubuya
Background: The use of nutritional supplements (NS) places athletes at great risk for inadvertent doping. Due to the paucity of data on supplement use, this study aimed to determine the proportion of Ugandan athletes using nutritional supplements and to investigate the athletes' motivation to use these supplements. Methods: A cross-sectional study was conducted in which an interviewer-administered questionnaire was used to collect data from 359 professional athletes participating in individual (boxing, cycling, athletics) and team (basketball, rugby, football, netball, and volleyball) sports...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29158621/loaded-and-unloaded-jump-performance-of-top-level-volleyball-players-from-different-age-categories
#3
Katia Kitamura, Lucas Adriano Pereira, Ronaldo Kobal, Cesar Cavinato Cal Abad, Ronaldo Finotti, Fábio Yuzo Nakamura, Irineu Loturco
The aim of this study was to investigate the differences in loaded and unloaded jump performances between different age categories of top-level volleyball players from the same club. Forty-three volleyball players were divided into four age groups: under-17, under-19, under-21 and professional. Vertical jumping height for squat jump (SJ), countermovement jump (CMJ) and CMJ with arm swing (CMJa) and mean propulsive velocity (MPV) in the loaded jump squat exercise with 40% of the athlete's body mass were compared among the different age categories, considering body mass as a covariate...
September 2017: Biology of Sport
https://www.readbyqxmd.com/read/29134051/does-context-practice-or-competition-affect-female-athletes-achievement-goal-dominance-goal-pursuit-burnout-and-motivation
#4
Javier Fernández-Rio, Jose A Cecchini, Antonio Méndez-Giménez
The goal of this study was to assess the effects of two different achievement sport contexts, practice and competition, on the motivational profile of professional/semi-professional athletes. Forty-eight Spanish national/international-level female athletes (basketball = 18; handball = 12; soccer = 11; volleyball = 7), mean age 25.14 ± 3.43 years, agreed to participate in the study. They completed a questionnaire, prior and after training and competition, to assess achievement goals, achievement goal dominance, goal pursuit, motivational climate, motivation, burnout and perceived recovery-exertion...
October 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28943009/midterm-and-long-term-follow-up-in-competitive-athletes-undergoing-thoracic-outlet-decompression-for-neurogenic-thoracic-outlet-syndrome
#5
William Shutze, Brad Richardson, Ryan Shutze, Kimberly Tran, Allen Dao, Gerald O Ogola, Allan Young, Greg Pearl
BACKGROUND: Neurogenic thoracic outlet syndrome (NTOS) results from compression of the brachial plexus by the clavicle, first rib, and scalene muscles and may develop secondary to repetitive motion of the upper extremity. Athletes routinely perform repetitive motions, and sports requiring significant arm and shoulder use may put the participant at increased risk for NTOS. Competitive athletes who develop NTOS may require first rib resection and scalenectomy (FRRS) for symptomatic relief...
December 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28902753/nonoperative-management-and-novel-imaging-for-posterior-circumflex-humeral-artery-injury-in-volleyball
#6
Daan van de Pol, R Nils Planken, Aart Terpstra, Marja Pannekoek-Hekman, P Paul F M Kuijer, Mario Maas
We report on a 34-yr-old male elite volleyball player with symptomatic emboli in the spiking hand from a partially thrombosed aneurysm of the posterior circumflex humeral artery (PCHA) in his dominant shoulder. At initial diagnosis and follow-up, a combination of time-resolved and high-resolution steady state contrast-enhanced magnetic resonance angiography (CE-MRA) enabled detailed visualization of: (1) emboli that were not detectable by vascular ultrasound; and (2) the PCHA aneurysm, including compression during abduction and external rotation (ABER provocation)...
September 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28858054/utilizing-microsensor-technology-to-quantify-match-demands-in-collegiate-women-s-volleyball
#7
Travis G Vlantes, Tucker Readdy
The purpose of this study was to quantify internal and external load demands of women's NCAA Division I collegiate volleyball competitions using microsensor technology and session rating of perceived exertion (S-RPE). Eleven collegiate volleyball players wore microsensor technology (Optimeye S5; Catapult Sports USA, Chicago, IL) during fifteen matches played throughout the 2016 season. Parameters examined include: Player load (PL), High impact load (HI PL), percentage of high impact load (% HI PL), Explosive efforts (EE) and jumps...
August 26, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28745472/effect-of-eight-weeks-of-upper-body-plyometric-training-during-the-competitive-season-on-professional-female-volleyball-players
#8
David Valades, José M Palao, Pedro Femia, Aurelio Ureña
BACKGROUND: The purpose of this study was to assess the effect of incorporating specific upper-body plyometric training for the spike into the competitive season of a women's professional volleyball team. METHODS: A professional team from the Spanish first division participated in the study. An A-B-A' quasi-experimental design with experimental and control groups was used. The independent variable was the upper-body plyometric training for eight weeks during the competitive season...
July 25, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28605232/sensorimotor-control-of-the-shoulder-in-professional-volleyball-players-with-isolated-infraspinatus-muscle-atrophy
#9
Samuele Contemori, Andrea Biscarini, Fabio Massimo Botti, Daniele Busti, Roberto Panichi, Vito Enrico Pettorossi
CONTEXT: Isolated infraspinatus muscle atrophy (IIMA) only affects the hitting shoulder of overhead-activity athletes, and is caused by suprascapular nerve neuropathy. No study has assessed the static and dynamic stability of the shoulder in overhead professional athletes with IIMA to reveal possible shoulder sensorimotor alterations. OBJECTIVE: To assess the shoulder static stability, dynamic stability, and strength in professional volleyball players with IIMA and in healthy control players...
June 12, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28409510/combined-osteopathy-and-exercise-management-of-achilles-tendinopathy-in-an-athlete-a-case-report
#10
Georgia Ross, Chris Macfarlane, Brett Vaughan
Mid-portion Achilles tendinopathy is a common injury in sporting populations. There is conflicting evidence about the best approach to conservative management. This report focuses on the rehabilitation of an Achilles tendinopathy utilising osteopathic manual therapy (OMT) and a structured exercise program in a semi-professional volleyballer. The patient presented with a 4-month history of right mid-portion Achilles tendon pain that begun after a lateral inversion sprain of the right ankle. The primary complaint was pain impacting the patients vertical jump performance...
April 13, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28409140/osteoid-osteoma-of-the-distal-clavicle
#11
Bernardo Barcellos Terra, Leandro Marano Rodrigues, David Victoria Hoffmann Padua, Tannous Jorge Sassine, José Maria Cavatte, Anderson De Nadai
The osteoid osteoma is a bone tumor that accounts for 10% of benign tumors. It was described in 1935 by Jaffe, as a tumor that affects the young adult population, with a predominance of males. This study aims to present a case of late diagnosis of a patient with osteoid osteoma of the distal clavicle region. Female patient, 44 years old, non-professional volleyball player, reported pain in the anterior and superior region of the shoulder girdle, specifically in the acromioclavicular joint, which worsened at night and had been treated for nine months as tendinitis of the rotator cuff and acromioclavicular joint arthritis...
March 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28370538/shoulder-position-sense-in-volleyball-players-with-infraspinatus-atrophy-secondary-to-suprascapular-nerve-neuropathy
#12
S Contemori, A Biscarini
Isolated infraspinatus atrophy (IIA) is a common condition among overhead-activity athletes, which affects the hitting shoulder and is caused by suprascapular nerve injury. As the suprascapular nerve is a mixed nerve, such damage could lead to reduced afferent proprioceptive information and impaired shoulder sensorimotor control. This study aimed to evaluate the proprioception of the shoulder with IIA, through the assessment of shoulder position sense. The shoulder position sense was assessed in 24 professional volleyball players (12 players with IIA and 12 healthy players) with a blind dynamic shoulder repositioning test (all participants were blindfolded during the test)...
March 29, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28237568/tibialis-posterior-tendon-dislocation-a-review-and-suggested-classification
#13
Andrew Strydom, Nikiforos Pandelis Saragas, Makgabo Tladi, Paulo Norberto Farria Ferrao
Tibialis posterior tendon dislocation is a rarely described entity that is easily missed, resulting in delayed diagnosis and treatment. A review of the English published data on the topic showed inconsistency in the reporting of injuries and surgical management techniques, leading us to describe a novel classification system to guide treatment and future reporting. We also describe a case of tibialis posterior tendon dislocation in a professional volleyball player and our surgical technique for correction, including retromalleolar groove deepening...
February 22, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28149426/game-related-performance-factors-in-four-european-men-s-professional-volleyball-championships
#14
Javier Peña, Martí Casals
The present study was designed to assess the relevance of game-related performance factors as outcome predictors in high-level volleyball. To carry out the analysis, the official box scores of 399 matches played by 47 different teams in four different European male professional volleyball leagues (Italy, Poland, Germany and Turkey) during the 2013-14 regular season were analyzed. A logistic mixed model was performed to determine the effects of different variables in matches' outcomes. According to the multivariate analysis the following factors were significantly associated with winning matches: the number of scorers (OR = 1...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28031760/the-effect-of-specific-sling-exercises-on-the-functional-movement-screen-score-in-adolescent-volleyball-players-a-preliminary-study
#15
Paweł Linek, Edward Saulicz, Andrzej Myśliwiec, Monika Wójtowicz, Tomasz Wolny
The existing data indicate that the result of the Functional Movement Screen (FMS) test influences the likelihood of subsequent injury in professional athletes. Therefore, exercises increasing test scores of the FMS may be useful at various stages of sports activity. This study evaluated the effects of the NEURAC sling exercises method on the FMS test score in teenage volleyball players. The study was conducted on 15 volleyball players aged 14 years. The FMS test was performed three times interspersed with a two-month interval...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/27872419/elastographic-findings-of-achilles-tendons-in-asymptomatic-professional-male-volleyball-players
#16
Mehtap Balaban, Ilkay S Idilman, Ali Ipek, Sinem Sigit Ikiz, Bulent Bektaser, Mehmet Gumus
OBJECTIVES: Elastography is a new sonographic technique that evaluates the elasticity of different tissues such as the Achilles tendon. In this study, we aimed to investigate the elastographic findings of Achilles tendons in professional athletes in comparison with healthy volunteers. METHODS: Twenty-one professional male volleyball players with no history of Achilles trauma were included in this study. Twenty-one healthy male volunteers with similar ages and body mass indices were selected as control participants...
December 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27792220/anterior-cruciate-ligament-injury-profile-in-italian-serie-a1-a2-women-s-volleyball-league
#17
Francesca Devetag, Massimiliano Mazzilli, Roberto Benis, Antonio La Torre, Matteo Bonato
BACKGROUND: The aim of this study was to assess how anterior cruciate ligament (ACL) ruptures with subsequently surgery reconstruction were sustaining during the professional career of women's' volleyball players of A1-A2 Italian volleyball league. METHODS: Using an observational study with a retrospective case-series design for ACL ruptures, 125 teams with 1488 players were monitored. Subjects had to report level, role, injury modality, lower limb injured, laterality, period of the season and age...
October 28, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27781979/scapholunate-interosseous-ligament-injury-in-professional-volleyball-players
#18
R Mugnai, N Della Rosa, L Tarallo
Injuries to the scapholunate interosseous ligament (SLIL) are the most common cause of carpal instability. A SLIL injury typically follows a fall on an outstretched hand, with the wrist in hyperextension, ulnar deviation and intercarpal supination. We hypothesize that repetitive axial loading on the wrist in hyperextension, during the reception and digging motions of volleyball, can lead to functional overloading of the SLIL. To identify patients and to determine the clinical history and surgical treatment performed, we analyzed hospital records, X-rays, electronic databases containing all the operations performed, and image files (including before and after surgery and follow-up)...
October 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27636403/game-specific-characteristics-of-sport-related-concussions
#19
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
https://www.readbyqxmd.com/read/27313344/the-effects-of-sole-vibration-stimulation-on-korean-male-professional-volleyball-players-jumping-and-balance-ability
#20
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
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