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https://www.readbyqxmd.com/read/28282745/overuse-wrist-injuries-in-young-athletes-what-do-sports-physicians-consider-important-signals-and-functional-limitations
#1
Laura S Kox, P Paul F M Kuijer, Jip Opperman, Gino M M J Kerkhoffs, Mario Maas, Monique H W Frings-Dresen
This study's objective was to collect items from experienced sports physicians, relating to the presence and severity of overuse wrist injuries in young athletes, for developing a measurement instrument for signals of overuse wrist injury. Seven Dutch elite sports physicians involved in guidance and treatment of young athletes in wrist-loading sports (gymnastics, tennis, judo, field hockey, volleyball and rowing) participated in a focus group. They discussed signals and limitations related to overuse wrist injuries in young athletes...
February 21, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28277426/effect-of-cold-water-immersion-performed-on-successive-days-on-physical-performance-muscle-damage-and-inflammatory-hormonal-and-oxidative-stress-markers-in-volleyball-players
#2
Victor H de Freitas, Solange P Ramos, Maurício G Bara-Filho, Daniel G S Freitas, Danilo R Coimbra, Rubens Cecchini, Flávia A Guarnier, Fábio Y Nakamura
The aim of this study was to investigate the effects of daily cold water immersion (CWI) on physical performance, muscle damage, and inflammatory, hormonal, and oxidative stress markers in volleyball. Six players were submitted to CWI and six players to a placebo, during 5 training days. Thigh circumference, squat jump, and agility were measured on the 1, 3 and 6 days. On the 1 and 6 days, blood and saliva were collected for analysis of oxidative stress, muscle damage, and inflammatory and hormonal levels. Muscle soreness and countermovement jump were quantified daily...
March 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28262856/resting-serum-concentration-of-high-sensitivity-c-reactive-protein-hs-crp-in-sportsmen-and-untrained-male-adults
#3
COMPARATIVE STUDY
F A Niyi-Odumosu, O A Bello, S A Biliaminu, B V Owoyele, T O Abu, O L Dominic
There is an inverse relationship between regular physical activity and concentration of serum inflammatory markers, with variations in resting CRP in trained and untrained subjects. The effect of acute and prolonged exercises has been studied on inflammatory markers with dearth of information and controversies on the resting serum values of high sensitivity CRP (hs-CRP). Therefore, this study sought to identify and compare variations that occur in serum levels of high sensitivity CRP in groups of sportsmen (6) and physically active untrained subjects...
March 6, 2017: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
https://www.readbyqxmd.com/read/28254580/validation-of-an-inertial-measurement-unit-for-the-measurement-of-jump-count-and-height
#4
Kerry MacDonald, Roald Bahr, Jennifer Baltich, Jackie L Whittaker, Willem H Meeuwisse
OBJECTIVES: To validate the use of an inertial measurement unit (IMU) for the collection of total jump count and assess the validity of an IMU for the measurement of jump height against 3-D motion analysis. DESIGN: Cross sectional validation study. SETTING: 3D motion-capture laboratory and field based settings. PARTICIPANTS: Thirteen elite adolescent volleyball players. INDEPENDENT VARIABLES: Participants performed structured drills, played a 4 set volleyball match and performed twelve counter movement jumps...
December 7, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28252429/the-heart-left-ventricle-diastolic-function-during-exercises-of-different-power-in-athletes
#5
О Nekhanevych, V Zhylyuk, V Logvinenko, Y Kramareva
The aim of the research was to investigate diastolic left ventricle function in athletes performing exercises requiring varying power using echocardiography. We surveyed 68 athletes aged from 12 to 27 years who were involved in swimming and volleyball. Echocardiography was used to assess cardiohaemodynamic changes in athletes using a bicycle ergometer to exercise at varying intensities. Exercising at submaximal and average power produces a proportional increase in indices of diastolic function of the heart: maximum speed of early diastolic mitral inflow streams (E) to 81,9±20,0 сm/s and maximum speed of early diastolic and mitral annulus velocity (е') to 16,6±5,7 сm/s...
January 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28240702/utility-of-genetic-testing-in-elite-volleyball-players-with-aortic-root-dilation
#6
Nicole Herrick, Christopher Davis, Lisa Vargas, Hal Dietz, Paul Grossfeld
Basketball and volleyball attract individuals with a characteristic biophysical profile, mimicking features of Marfan Syndrome (MFS). Consequently, identification of these abnormalities can be lifesaving. PURPOSE: To determine how physical examination, echocardiography, and genetic screening can identify elite volleyball players with a previously undiagnosed aortopathy. METHODS: We have performed cardiac screening on 90 US Volleyball National Team members and identified four individuals with dilated sinuses of Valsalva...
February 25, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28237568/tibialis-posterior-tendon-dislocation-a-review-and-suggested-classification
#7
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/28235403/erratum-to-concurrent-agreement-between-an-anthropometric-model-to-predict-thigh-volume-and-dual-energy-x-ray-absorptiometry-assessment-in-female-volleyball-players-aged-14-18-years
#8
Óscar M Tavares, João Valente-Dos-Santos, João P Duarte, Susana C Póvoas, Luís A Gobbo, Rômulo A Fernandes, Daniel A Marinho, José M Casanova, Lauren B Sherar, Daniel Courteix, Manuel J Coelho-E-Silva
No abstract text is available yet for this article.
February 24, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28229430/differences-in-biomarkers-of-cartilage-matrix-turnover-and-their-changes-over-2%C3%A2-years-in-adolescent-and-adult-volleyball-athletes
#9
Heide Boeth, Aoife MacMahon, A Robin Poole, Frank Buttgereit, Patrik Önnerfjord, Pilar Lorenzo, Cecilia Klint, Anna Pramhed, Georg N Duda
BACKGROUND: This study aimed the feasibility to assess longitudinal changes in biomarkers of cartilage turnover and to determine their relationship with patient-rated outcomes over 2 years in volleyball athletes. METHODS: Thirty-seven athletes were studied: 18 adolescents (age 15.9 ± 0.64 years) in a 2-year intensive volleyball training program and 19 adult recreational volleyball players (age 46.5 ± 4.9 years). Blood and serum samples were taken at baseline (BL) and 2-year follow-up (FU)...
December 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28224374/mri-findings-of-knee-abnormalities-in-adolescent-and-adult-volleyball-players
#10
Heide Boeth, Aoife MacMahon, Felix Eckstein, Gerd Diederichs, Arne Schlausch, Wolfgang Wirth, Georg N Duda
BACKGROUND: To longitudinally and cross-sectionally evaluate knee abnormalities by sex and age in adolescent and adult volleyball athletes over 2 years using magnetic resonance imaging (MRI). METHODS: Thirty-six high-level volleyball athletes (18 adolescents: 56% female, mean age 16.0 ± 0.8 years; and 18 adults: 50% female, mean age 46.8 ± 5.1 years) were imaged by MRI at BL and at 2-year follow-up (FU). Prevalence and severity of cartilage lesions, subarticular bone marrow lesions (BMLs), subarticular cysts, osteophytes, and ligament and meniscus integrity were evaluated by sex and by age cohort (adolescents and adults) using the whole-organ MRI score (WORMS)...
December 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28222582/anthropometric-and-performance-measures-to-study-talent-detection-in-youth-volleyball
#11
Giovanni Melchiorri, Valerio Viero, Tamara Triossi, Giuseppe Annino, Elvira Padua, Virginia Tancredi
BACKGROUND: The aim of this work was to study anthropometric and performance measurements in 60 young male volleyball players (YV) and 60 youth not active in the sport (YNA) to assess which of these would be more useful to study the characteristics of potential performers. METHODS: Eight measures to assess anthropometric characteristics, six performance measures and two tests for joint mobility were used. Also relative age and level of maturation were assessed. RESULTS: The anthropometric variables, relative age and level of maturation measured did not show statistically significant differences between groups...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28195972/individual-and-combined-influence-of-ace-and-actn3-genes-on-muscle-phenotypes-in-polish-athletes
#12
Joanna Orysiak, Joanna Mazur-Różycka, Krzysztof Busko, Jan Gajewski, Beata Szczepanska, Jadwiga Malczewska-Lenczowska
The aim of this study was to examine the association between ACE and ACTN3 genes, independently or in combination, and muscle strength and power in male and female athletes. The study involved 398 young male (n=266) and female (n=132) athletes representing various sport disciplines (ice hockey, canoeing, swimming, volleyball). All were Caucasians. The following measurements were taken: height of jump and mechanical power in countermovement jump (CMJ) and spike jump (SPJ), and muscle strength of 10 muscle groups (flexors and extensors of the elbow, shoulder, hip, knee and trunk)...
February 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28184307/low-back-pain-and-foki-rs2228570-polymorphism-of-vitamin-d-receptor-in-athletes
#13
Sabina Cauci, Francesca Migliozzi, Carlo Simone Trombetta, Ilaria Venuto, Paola Saccheri, Luciana Travan, Giovanni Chiriacò
BACKGROUND: Low back pain (LBP) is common in athletes. LBP can be detrimental to athletic performance and health. Factors predisposing to LBP in athletes remain elusive and require further studies. We investigated whether carriage of a specific genotype and/or allele of vitamin D receptor gene (VDR) FokI polymorphism (rs2228570) was a risk factor for LBP in athletes of different sports disciplines. METHODS: This genotype/phenotype association case-control study included 60 Italian athletes (25 females and 35 males; mean age 33...
2017: BMC Sports Science, Medicine and Rehabilitation
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/28149423/analysis-of-setting-efficacy-in-young-male-and-female-volleyball-players
#15
Jara González-Silva, Alberto Moreno Domínguez, Carmen Fernández-Echeverría, Fernando Claver Rabaz, M Perla Moreno Arroyo
The main objective of this study was to analyse the variables that predicted setting efficacy in complex I (KI) in volleyball, in formative categories and depending on gender. The study sample was comprised of 5842 game actions carried out by the 16 male category and the 18 female category teams that participated in the Under-16 Spanish Championship. The dependent variable was setting efficacy. The independent variables were grouped into: serve variables (a serve zone, the type of serve, striking technique, an in-game role of the server and serve direction), reception variables (a reception zone, a receiver player and reception efficacy) and setting variables (a setter's position, a setting zone, the type of a set, setting technique, a set's area and tempo of a set)...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149409/effect-of-an-arm-swing-on-countermovement-vertical-jump-performance-in-elite-volleyball-players-final
#16
Frantisek Vaverka, Daniel Jandačka, David Zahradník, Jaroslav Uchytil, Roman Farana, Matej Supej, Janez Vodičar
The aim of this study was to determine how elite volleyball players employed the arm swing (AS) to enhance their jump performance. The study assessed how the AS influenced the duration and magnitude of the vertical ground reaction force (VGRF) during the main phases (preparatory, braking and accelerating) of the countermovement vertical jump (CMVJ), the starting position of the body at the beginning of the accelerating phase and the moment when the AS began contributing to increasing the jump height. Eighteen elite volleyball players performed three CMVJs with and without an AS...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149351/lower-limb-neuromuscular-asymmetry-in-volleyball-and-basketball-players
#17
Azahara Fort-Vanmeerhaeghe, Gabriel Gual, Daniel Romero-Rodriguez, Viswanath Unnitha
The primary objective of the present study was to evaluate the agreement between the dominant leg (DL) (determined subjectively) and the stronger leg (SL) (determined via a functional test) in a group of basketball and volleyball players. The secondary objective was to calculate lower limb neuromuscular asymmetry when comparing the DL vs the non-dominant leg (NDL) and the SL vs the weaker (WL) leg in the whole group and when differentiating by sex. Seventy-nine male and female volleyball and basketball players (age: 23...
April 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28144458/grape-seed-extract-supplementation-and-the-effects-on-the-biomarkers-of-oxidative-stress-and-metabolic-profiles-in-female-volleyball-players-a-randomized-double-blind-placebo-controlled-clinical-trial
#18
Mohsen Taghizadeh, Elaheh Malekian, Mohammad Reza Memarzadeh, Ali Akbar Mohammadi, Zatollah Asemi
BACKGROUND: Only limited data are available for evaluating the effects of the administration of grape seed extract (GSE) on the metabolic status of female volleyball players. OBJECTIVES: This study was conducted to determine the effects of GSE administration on the metabolic status of female volleyball players. METHODS: This randomized, double-blind, placebo-controlled clinical trial was performed among 40 female volleyball players. The subjects were randomly divided into two groups, with members of the test group (n = 20) taking 300 mg of GSE twice a day for eight weeks and members of the control group (n = 20) taking a placebo pearl for the same period...
September 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28142351/epidemiology-of-surgically-managed-anterior-cruciate-ligament-ruptures-in-a-sports-surgery-practice
#19
Andrew Arjun Sayampanathan, Bryan Koh Thean Howe, Hamid Rahmatullah Bin Abd Razak, Chong Hwei Chi, Andrew Hwee Chye Tan
INTRODUCTION: Anterior cruciate ligament (ACL) tears are common knee injuries, especially among sportsmen and sportswomen. The aim of this study is to better understand the epidemiology of surgically managed ACL tears sustained in our institution. METHODS: All patients who underwent arthroscopic ACL reconstruction by the senior author of this article in Singapore from 2008 to 2013 were studied. Patients who were diagnosed clinically and/or radiologically to have a complete tear of the ACL and subsequently underwent arthroscopic ACL reconstruction were included...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28121799/compensatory-changes-in-energy-balance-regulation-over-one-athletic-season
#20
Analiza M Silva, Catarina N Matias, Diana A Santos, Diana Thomas, Anja Bosy-Westphal, Manfred J Müller, Steven B Heymsfield, Luís B Sardinha
PURPOSE: Mechanisms in energy balance (EB) regulation may include compensatory changes in energy intake (EI) and metabolic adaption (MA) but information is unavailable in athletes who often change EB components. We aim to investigate EB regulation compensatory mechanisms over one athletic season. METHODS: Fifty-seven athletes (39 males/18 females; handball, volleyball, basketball, triathlon, and swimming) were evaluated from the beginning to the competitive-phase of the season...
January 24, 2017: Medicine and Science in Sports and Exercise
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