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https://www.readbyqxmd.com/read/29659298/agreement-between-visual-assessment-and-2-dimensional-analysis-during-jump-landing-among-healthy-female-athletes
#1
Alon Rabin, Ofira Einstein, Zvi Kozol
CONTEXT:   Altered movement patterns, including increased frontal-plane knee movement and decreased sagittal-plane hip and knee movement, have been associated with several knee disorders. Nevertheless, the ability of clinicians to visually detect such altered movement patterns during high-speed athletic tasks is relatively unknown. OBJECTIVE:   To explore the association between visual assessment and 2-dimensional (2D) analysis of frontal-plane knee movement and sagittal-plane hip and knee movement during a jump-landing task among healthy female athletes...
April 16, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29649012/clinical-improvements-are-not-explained-by-changes-in-tendon-structure-on-utc-following-an-exercise-program-for-patellar-tendinopathy
#2
Mathijs van Ark, Ebonie Rio, Jill Cook, Inge van den Akker-Scheek, James E Gaida, Johannes Zwerver, Sean Docking
OBJECTIVES: The aim of this study was to investigate the effects of a 4-week in-season exercise program of isometric or isotonic exercises on tendon structure and dimensions as quantified by Ultrasound Tissue Characterization (UTC). DESIGN: Randomized clinical trial. Volleyball and basketball players (16-31 years, n=29) with clinically diagnosed patellar tendinopathy were randomized to a 4-week isometric or isotonic exercise program. The programs were designed to decrease patellar tendon pain...
April 11, 2018: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29649011/ultrasonographic-findings-in-a-latissimus-dorsi-injury-in-a-beach-volleyball-player
#3
Manuel Wong-On, Edgar Mora-Montoya
No abstract text is available yet for this article.
April 11, 2018: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29628407/posterior-circumflex-humeral-artery-pathology-and-digital-ischemia-in-elite-volleyball-symptoms-risk-factors-suggestions-for-clinical-management
#4
Daan van de Pol, P Paul F M Kuijer, Aart Terpstra, Marja Pannekoek-Hekman, Sena Alaeikhanehshir, Olivier Bouwmeester, R Nils Planken, Mario Maas
OBJECTIVES: To assess the association between posterior circumflex humeral artery (PCHA) pathology (PCHAP), symptoms and associated risk factors, in elite volleyball players, and to suggest profiles for clinical management and monitoring. DESIGN: Cross-sectional study. METHODS: A questionnaire assessed symptoms of digital ischemia (DI) in the dominant hand and risk factors among 278 elite indoor and beach volleyball players of whom 6.1% (17/278) was diagnosed with PCHAP using ultrasound...
March 28, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29619798/seasonal-player-wellness-and-its-longitudinal-association-with-internal-training-load-study-in-elite-volleyball
#5
Filipe M Clemente, Bruno Mendes, José M Palao, André Silvério, Sandro Carriço, Francisco Calvete, Fábio Y Nakamura
BACKGROUND: Monitoring training load is critical to minimize the risk of overreaching, injury or illness. The purpose of this study was to assess the relationships and variance between perceived internal load and wellness status of elite male volleyball. METHODS: Thirteen elite volleyball players were studied during a full competitive season (nine months, 237 training sessions and 37 official matches). Perceived exertion, muscle soreness, stress, fatigue and sleep quality levels were daily measured using session RPE and the Hopper Questionnaire...
April 4, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29613821/lower-extremity-kinematics-differed-between-a-controlled-drop-jump-and-volleyball-takeoffs
#6
Bradley S Beardt, Myranda R McCollum, Taylour J Hinshaw, Jacob S Layer, Margaret A Wilson, Qin Zhu, Boyi Dai
Previous studies utilizing jump-landing biomechanics to predict anterior cruciate ligament injuries have shown inconsistent findings. The purpose of this study was to quantify the differences and correlations in jump-landing kinematics between a drop-jump, a controlled volleyball-takeoff, and a simulated-game volleyball-takeoff. Seventeen female volleyball players performed these three tasks on a volleyball court while three-dimensional kinematic data were collected by three calibrated camcorders. Participants demonstrated significantly increased jump height, shorter stance time, increased time differences in initial contact between two feet, increased knee and hip flexion at initial contact and decreased peak knee and hip flexion for both left and right legs, and decreased knee-ankle distance ratio at the lowest height of mid-hip for the two volleyball-takeoffs compared with the drop-jump (p < 0...
April 3, 2018: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/29599869/variables-that-predict-serve-efficacy-in-elite-men-s-volleyball-with-different-quality-of-opposition-sets
#7
Álvaro Valhondo, Carmen Fernández-Echeverría, Jara González-Silva, Fernando Claver, M Perla Moreno
The objective of this study was to determine the variables that predicted serve efficacy in elite men's volleyball, in sets with different quality of opposition. 3292 serve actions were analysed, of which 2254 were carried out in high quality of opposition sets and 1038 actions were in low quality of opposition sets, corresponding to a total of 24 matches played during the Men's European Volleyball Championships held in 2011. The independent variables considered in this study were the serve zone, serve type, serving player, serve direction, reception zone, receiving player and reception type; the dependent variable was serve efficacy and the situational variable was quality of opposition sets...
March 2018: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29584530/monitoring-training-load-recovery-and-performance-of-brazilian-professional-volleyball-players-during-a-season
#8
Paula B Debien, Marcelly Mancini, Danilo R Coimbra, Daniel G S de Freitas, Renato Miranda, Maurício G Bara Filho
PURPOSE: The aim of this study is to describe and analyze the distribution of internal training load (ITL), recovery, and physical performance of professional volleyball players throughout one season. METHODS: 15 male professional Brazilian volleyball players participated in this study. The session rating of perceived exertion (session-RPE) and Total Quality Recovery (TQR) score were collected daily for 36 weeks. The session-RPE was collected after each training session and the TQR before the first session of the day...
March 27, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29584510/bioimpedance-vector-analysis-of-%C3%A3-lite-sub-%C3%A3-lite-and-low-level-male-volleyball-players
#9
Francesco Campa, Stefania Toselli
PURPOSE: The aim of this study was to establish a specific players profile on body composition (BC) parametres and to provide a data set of bioelectric impedances (BI) values for male volleyball players. METHODS: The study included 201 athletes (age: 26.1±5.4 yr, height: 191.9±9.7 cm, weight: 86.8±10.8 kg) registered in the Italian volleyball divisions. The athletes were divided into 3 groups: the élite group constituted of 75 players participating in the first (Super Lega) division...
March 27, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29581141/risk-factors-for-and-prevention-of-shoulder-injuries-in-overhead-sports-a-systematic-review-with-best-evidence-synthesis
#10
REVIEW
Martin Asker, Hannah L Brooke, Markus Waldén, Ulrika Tranaeus, Fredrik Johansson, Eva Skillgate, Lena W Holm
OBJECTIVE: To assess the evidence for risk factors and prevention measures for shoulder injuries in overhead sports. DESIGN: Systematic review with best-evidence synthesis. DATA SOURCES: Medline (Ovid), PubMed (complementary search), Embase (Elsevier), Cochrane (Wiley), SPORTDiscus (Ebsco) and Web of Science Core Collection (Thomson Reuters), from 1 January 1990 to 15 May 2017. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Randomised controlled trials, cohort studies and case-control studies on risk factors or prevention measures for shoulder injuries in overhead sports...
March 26, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29578379/the-relationship-between-strength-asymmetries-and-jumping-performance-in-professional-volleyball-players
#11
Pedro Schons, Rodrigo Gomes Da Rosa, Gabriela Fischer, Guilherme Pereira Berriel, Carolina Gassen Fritsch, Fábio Yuzo Nakamura, Bruno Manfredini Baroni, Leonardo Alexandre Peyré-Tartaruga
Knee peak torque (PT) is associated to jump performance in volleyball players. It is not clear whether muscle strength imbalances of the knee joint can influence jump performance. The purpose of study was to analyse the association between PT and knee muscular imbalances with jump performance in professional volleyball players. Eleven elite male volleyball players (90.3 ± 9.7 kg body mass and 1.94 ± 0.06 m height) were evaluated in an isokinetic dynamometer at speeds of 60, 180 and 300 deg/s. Muscle strength imbalances were obtained through calculation of contralateral deficit between limbs and the conventional ratio (hamstrings/quadriceps)...
March 26, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29564843/upper-extremity-functional-performance-tests-reference-values-for-overhead-athletes
#12
Dorien Borms, Ann Cools
This study aimed to provide an age, gender and sport-based normative database for three functional shoulder tests: Y Balance Test - Upper Quarter (YBT-UQ), Closed Kinetic Chain Upper Extremity Stability Test (CKCUEST), and Seated Medicine Ball Throw (SMBT). A second aim was to discuss gender, age and sports differences. Finally, correlation between tests was evaluated. Overhead athletes (106 male, 100 female) between 18 and 50 years old and from three different sports (volleyball, tennis, handball) performed all functional tests...
March 21, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29563884/symptoms-of-anxiety-and-depression-in-young-athletes-using-the-hospital-anxiety-and-depression-scale
#13
Stephanie Weber, Christian Puta, Melanie Lesinski, Brunhild Gabriel, Thomas Steidten, Karl-Jürgen Bär, Marco Herbsleb, Urs Granacher, Holger H W Gabriel
Elite young athletes have to cope with multiple psychological demands such as training volume, mental and physical fatigue, spatial separation of family and friends or time management problems may lead to reduced mental and physical recovery. While normative data regarding symptoms of anxiety and depression for the general population is available (Hinz and Brähler, 2011), hardly any information exists for adolescents in general and young athletes in particular. Therefore, the aim of this study was to assess overall symptoms of anxiety and depression in young athletes as well as possible sex differences...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29525640/the-association-of-visually-assessed-quality-of-movement-during-jump-landing-with-ankle-dorsiflexion-range-of-motion-and-hip-abductor-muscle-strength-among-healthy-female-athletes
#14
Alon Rabin, Ofira Einstein, Zvi Kozol
OBJECTIVE: To explore the association between ankle dorsiflexion (DF) range of motion (ROM), and hip abductor muscle strength, to visually-assessed quality of movement during jump-landing. DESIGN: Cross-sectional. SETTING: Gymnasium of participating teams. PARTICIPANTS: 37 female volleyball players. MAIN OUTCOME MEASURES: Quality of movement in the frontal-plane, sagittal-plane, and overall (both planes) was visually rated as "good/moderate" or "poor"...
January 17, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29523911/a-new-anatomical-insight-into-the-aetiology-of-lateral-trunk-of-suprascapular-nerve-neuropathy-isolated-infraspinatus-atrophy
#15
Anna Fabis-Strobin, Miroslaw Topol, Jaroslaw Fabis, Kryspin Niedzielski, Michal Podgorski, Lukasz Strobin, Michal Polguj
INTRODUCTION: Although the pathomechanism of isolated infraspinatus atrophy (ISA) in throwing sports is known to be traction, it is unclear why only some players are affected. One likely explanation is that the infraspinatus pulling force exerted by its contracture generate the compressive resultant component force (Fn) compressing the lateral trunk of the suprascapular nerve (LTSN) against the edge of scapular spine. This paper makes two key assumptions (1) the course of LTSN in relation to the scapular spine, defined as the suprascapular-scapular spine angle (SSSA) is the key individual anatomical feature influencing the Fn magnitude, and thus potentially ISA development (2) SSSA is correlated with scapular notch type...
March 9, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29512844/experience-modulates-motor-imagery-based-brain-activity
#16
Sarah N Kraeutner, Sean R McWhinney, Jack P Solomon, Lori Dithurbide, Shaun G Boe
Whether or not brain activation during motor imagery (MI) the mental rehearsal of movement, is modulated by experience (i.e., skilled performance, achieved through long-term practice) remains unclear. Specifically, MI is generally associated with diffuse activation patterns that closely resemble novice physical performance, which may be attributable to a lack of experience with the task being imagined vs. being a distinguishing feature of MI. We sought to examine how experience modulates brain activity driven via MI, implementing a within- and between-group design to manipulate experience across tasks as well as expertise of the participants...
March 7, 2018: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29493073/type-1-diabetes-sport-practiced-and-ankle-joint-mobility-in-young-patients-what-is-the-relationship
#17
Piergiorgio Francia, Sonia Toni, Giulia Iannone, Giuseppe Seghieri, Barbara Piccini, Alessandro Vittori, Ugo Santosuosso, Emilio Casalini, Massimo Gulisano
BACKGROUND/OBJECTIVE: It is known that patients with diabetes can develop limited joint mobility (LJM) and that this can depend on the metabolic control maintained and the duration of the disease. The aims of this study were to verify the presence of ankle joint mobility (AJM) deficits in both plantar and dorsiflexion in young type 1 diabetic patients (T1D) considering also the possible role of sport practiced as a further factor, able to modify AJM. METHODS: AJM was evaluated by an inclinometer in 82 T1D patients (M/F: 48/34), mean age 12...
March 1, 2018: Pediatric Diabetes
https://www.readbyqxmd.com/read/29489724/examination-of-coach-and-player-perceptions-of-recovery-and-exertion
#18
Justin A Kraft, Matthew L Laurent, James Matthew Green, Jessica Helm, Cooper Roberts, Swan Holt
Monitoring training and recovery are essential for exercise programming. Athletes can validly assess training load (TL) via the session rating of perceived exertion (SRPE) technique. However, it is unclear if coaches can successfully use this model. PURPOSE: This study compared coach and athlete perceptions of effort and recovery and evaluated the efficacy of perceptually-based TL monitoring. METHODS: Participants included 56 athletes (Women's volleyball, soccer, and basketball and Men's basketball) and their coaches (n = 4)...
February 27, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29478378/the-effects-of-3-month-skill-based-and-plyometric-conditioning-on-fitness-parameters-in-junior-female-volleyball-players
#19
Kemal Idrizovic, Bahri Gjinovci, Damir Sekulic, Ognjen Uljevic, Paulo Vicente João, Miodrag Spasic, Tine Sattler
PURPOSE: This study compared the effects of skill-based and plyometric conditioning (both performed in addition to regular volleyball training twice a week for 12 wk) on fitness parameters in female junior volleyball players. METHODS: The participants [n = 47; age: 16.6 (0.6) y; mass: 59.4 (8.1) kg; height: 175.1 (3.0) cm] were randomized into a plyometric (n = 13), a skill-based (n = 17), and a control (n = 17) groups. The variables included body height, body mass, calf girth, calf skinfold, corrected calf girth, countermovement jump, 20-m-sprint, medicine ball toss, and sit-and-reach test...
February 24, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/29466076/the-effects-of-rigid-scapular-taping-on-the-subacromial-space-in-athletes-with-and-without-rotator-cuff-tendinopathy-a-randomized-controlled-study
#20
Hio Teng Leong, Siu Ngor Fu
CONTEXT: Reduction of the subacromial space (SAS) during arm elevation may contribute to rotator cuff tendinopathy. The effects of scapular taping on the SAS in athletes with and without RC tendinopathy is unknown. OBJECTIVES: To investigate the immediate effects of scapular taping on the SAS in athletes with and without RC tendinopathy. DESIGN: Randomized-controlled with repeated measures. SETTING: University laboratory...
February 21, 2018: Journal of Sport Rehabilitation
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