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Simon Steib, Peter Zahn, Christine Zu Eulenburg, Klaus Pfeifer, Astrid Zech
BACKGROUND: Female handball athletes are at a particular risk of sustaining lower extremity injuries. The study examines time-dependent adaptations of static and dynamic balance as potential injury risk factors to a specific warm-up program focusing on neuromuscular control. METHODS: Fourty one (24.0 ± 5.9 years) female handball athletes were randomized to an intervention or control group. The intervention group implemented a 15-min specific neuromuscular warm-up program, three times per week for eleven weeks, whereas the control group continued with their regular warm-up...
2016: BMC Sports Science, Medicine and Rehabilitation
Naruto Yoshida, Shun Kunugi, Sonoko Mashimo, Yoshihiro Okuma, Akihiko Masunari, Shogo Miyazaki, Tatsuya Hisajima, Shumpei Miyakawa
BACKGROUND: The purpose of this study is to examine the effects of different strike forms, during cutting, on knee joint angle and lower limb muscle activity. METHODS: Surface electromyography was used to measure muscle activity in individuals performing cutting manoeuvres involving either rearfoot strikes (RFS) or forefoot strikes (FFS). Three-dimensional motion analysis was used to calculate changes in knee angles, during cutting, and to determine the relationship between muscle activity and knee joint angle...
December 2016: Sports Medicine—Open
Jaroslaw Krzywanski, Tomasz Mikulski, Hubert Krysztofiak, Marcel Mlynczak, Ewa Gaczynska, Andrzej Ziemba
Vitamin D does not only influence the musculoskeletal health and mineral homeostasis but it also affects cardiovascular, endocrine, nervous, immune and mental functions, thus it is of considerable importance for both physically active people and elite athletes. However, vitamin D deficiency is common worldwide and results from inadequate endogenous skin synthesis (insufficient ultraviolet B exposure) and diet. To improve the vitamin D status elite athletes often travel to lower latitude during winter. The aim of the study was to evaluate the seasonal vitamin D status in Polish elite athletes according to the sun exposure and oral supplementation...
2016: PloS One
Carl T Woods, Sam Robertson, Neil French Collier
This study investigated the evolution of game-play manifested via team performance indicator characteristics in the Australian Football League (AFL) from the 2001 to 2015 seasons. The mean values for 18 performance indicators were collated for every AFL team over 15-seasons. A multivariate analysis was used to uncover temporal trends in the dataset. Compared to the 2004 season, the 2005 to 2010 seasons were characterised by large growth in the counts of handballs (d = 0.83; 90% CI = 0.22-1.43), disposals (d = 1...
October 12, 2016: Journal of Sports Sciences
A Dello Iacono, A Eliakim, J Padulo, L Laver, S Ben-Zaken, Y Meckel
The aim of this study was to investigate the influence of physical contact on neuromuscular impairments and inflammatory response during handball small-sided games. Using a counterbalanced design, 12 elite male junior handball players were divided into two groups: contact (C-SSG) and no-contact (NC-SSG), performing both contact and no-contact small-sided games, in reverse order on two training sessions separated by 5 days. The methodology and rules were identical for the two SSG regimens, with the only difference being the inclusion or prohibition of upper body use for physical contacts...
September 30, 2016: Scandinavian Journal of Medicine & Science in Sports
S O'Connor, M Downey, K Moran
The initial step in developing injury prevention strategies is to establish the epidemiology of injury. However there has been no published research on injury in Gaelic handball. This study describes the epidemiology of injury in 75 Gaelic handball players utilising a retrospective questionnaire. 88% of participants reported one or more injuries. Injuries to the upper limb were prevalent (52.9%), followed by the lower limb (30.3%). The shoulder (17.6%), finger (10.5%) and ankle (9.8%) were the primary sites of injury...
2016: Irish Medical Journal
Fabian Steinberg, Nils Henrik Pixa, Michael Doppelmayr
Mirror training therapy is a promising tool to initiate neural plasticity and facilitate the recovery process of motor skills after diseases such as stroke or hemiparesis by improving the intermanual transfer of fine motor skills in healthy people as well as in patients. This study evaluated whether these augmented performance improvements by mirror visual feedback (MVF) could be used for learning a sport-specific skill and if the effects are modulated by skill level. A sample of 39 young, healthy, and experienced basketball and handball players and 41 novices performed a stationary basketball dribble task at a mirror box in a standing position and received either MVF or direct feedback...
2016: Neural Plasticity
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
Naryana Cristina Mascarin, Claudio Andre Barbosa de Lira, Rodrigo Luiz Vancini, Alberto de Castro Pochini, Antonio Carlos da Silva, Marilia Dos Santos Andrade
CONTEXT: Imbalance in shoulder rotator muscles has been considered a risk factor for injuries in handball. Strength training programs (STP) may play an important preventive role. OBJECTIVE: To verify the effects of an STP by using elastic band on shoulder muscles and ball throwing speed. DESIGN: Randomized and prospective controlled trial. SETTING: Exercise Physiology Laboratory. PARTICIPANTS: Thirty nine female handball players were randomly assigned to experimental (EG, n=21, 15...
August 24, 2016: Journal of Sport Rehabilitation
Mateja Petrović, Sebastian Kühl, Martina Šlaj, Thomas Connert, Andreas Filippi
Handball has developed into a much faster and high-impact sport over the past few years because of rule changes. Fast sports with close body contact are especially prone to orofacial trauma. Handball belongs to a category of sports with medium risk for dental trauma. Even so, there is only little literature on this subject. The aim of this study was to examine the prevalence and the type of injuries, especially the occurrence of orofacial trauma, habits of wearing mouthguards, as well as degree of familiarity with the tooth rescue box...
2016: Swiss Dental Journal
Elsa Kristiansen, Trine Stensrud
OBJECTIVE: The aim of the present study was to examine how six young female handball players (aged 13-14 years) perceived the transition from primary school to a sport-specialised secondary school. METHODS: Physical and physiological data as well as data from questionnaires were collected at baseline and after the first year at the sport school, and qualitative interviews were performed retrospectively after the first year at school. RESULTS: Evidence of competition-related stressors, organisational stressors (sport and school balance) and personal stressors (social life and sport balance, lack of sleep and severe injuries) was found...
September 6, 2016: British Journal of Sports Medicine
Volker Kast, Christian Leukel
Thousands of hours of physical practice substantially change the way movements are performed. The mechanisms underlying altered behavior in highly-trained individuals are so far little understood. We studied experts (handballers) and untrained individuals (novices) in visuomotor adaptation of free throws, where subjects had to adapt their throwing direction to a visual displacement induced by prismatic glasses. Before visual displacement, experts expressed lower variability of motor errors than novices. Experts adapted and de-adapted slower, and also forgot the adaptation slower than novices...
2016: PloS One
Marek Popowczak, Andrzej Rokita, Artur Struzik, Ireneusz Cichy, Andrzej Dudkowski, Paweł Chmura
An important role in handball and basketball is played by ability to accelerate and ability to repeat multiple sprints. The aim of the study was to assess level of ability in multi-directional sprinting and running time over the first 5 m of the 30 m sprint in 93 basketball and handball players (46 boys and 47 girls) aged 14 to 15 years. The attempts were also made to find the relationships between the time of a 5-m run to evaluate initial acceleration phase and multi-directional sprinting evaluated using Five-Time Shuttle Run To Gates Test Statistical analysis revealed no important differences in times of 5-m runs and times of multi-directional sprinting between groups with different ages, genders, and sports specialties...
October 2016: Perceptual and Motor Skills
Esther Ubago-Guisado, Jorge García-Unanue, Jorge López-Fernández, Javier Sánchez-Sánchez, Leonor Gallardo
The aim of this cross-sectional study was to compare bone mass in young female athletes playing ball games on different types of playing surfaces. About 120 girls, 9-13 years of age (10.6 ± 1.5 years old Tanner I-III) were recruited and divided into prepubertal and pubertal groups. The sample represented 3 groups of athletes: soccer (N = 40), basketball (N = 40), and handball (N = 40); and 6 different playing surfaces (soccer - ground, soccer - artificial turf, basketball - synthetic, basketball - parquet, handball - synthetic, and handball - smooth concrete)...
August 26, 2016: Journal of Sports Sciences
Thomas Muehlbauer, Jan Pabst, Urs Granacher, Dirk Büsch
The primary purpose of this study was to examine concurrent validity of the jump-and-reach (JaR) test using the Vertec system and a criterion device (i.e., Optojump system). In separate sub-analyses, we investigated the influence of gym floor condition and athletes' sex on the validity of vertical jump height. Four hundred and forty sub-elite adolescent female (n = 222, mean age: 14 ± 1 years, age range: 13-15 years) and male (n = 218, mean age: 15 ± 1 years, age range: 14-16 years) handball players performed the JaR test in gyms with region or point elastic floors...
August 18, 2016: Journal of Strength and Conditioning Research
Jonathan M Vigdorchik, Jeffrey J Nepple, Nima Eftekhary, Michael Leunig, John C Clohisy
BACKGROUND: Male athletes participating in certain elite sporting activities may be at an increased risk for development of hip osteoarthritis (OA) later in life. However, the strength of the association of participation in sporting activities with the increased risk of hip OA has not been well summarized. PURPOSE: To investigate the association of certain high-impact sporting activities with the risk of development of hip OA in elite athletes by conducting a systematic review of the available literature...
July 29, 2016: American Journal of Sports Medicine
Toshiya Nonoyama, Yoshihiro Shimazaki, Haruo Nakagaki, Shinpei Tsuge
AIM: Students often injure their teeth during participation in school-based sports clubs. This study examined the frequencies and types of dental injuries sustained at school sports clubs and compared the risk of dental injury among different sports. METHODS: Based on injury statistics from the Japan Sport Council of the junior high schools and high schools in seven prefectures during fiscal year 2006, the risk of dental injury was estimated using a rate ratio (RR) by calculating the ratio of occurrence of dental injury under various circumstances...
July 24, 2016: International Dental Journal
C Kajetanek, M Thaunat, T Guimaraes, O Carnesecchi, M Daggett, B Sonnery-Cottet
Sinding-Larsen-Johansson (SLJ) syndrome is a type of osteochondrosis of the distal pole of the patella most often caused by repeated microtrauma. Here, we describe the case of a professional athlete with painful SLJ syndrome treated arthroscopically. A 29-year-old male professional handball player presented with anterior knee pain that persisted after 4 months of an eccentric rehabilitation protocol and platelet-rich plasma injections. Despite this conservative treatment, the patient could not participate in his sport...
September 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
Fabian Helm, Mathias Reiser, Jörn Munzert
In our everyday environments, we are constantly having to adapt our behavior to changing conditions. Hence, processing information is a fundamental cognitive activity, especially the linking together of perceptual and action processes. In this context, expertise research in the sport domain has concentrated on arguing that superior processing performance is driven by an advantage to be found in anticipatory processes (see Williams et al., 2011, for a review). This has resulted in less attention being paid to the benefits coming from basic internal perceptual-motor processing...
2016: Frontiers in Psychology
Dello Iacono Antonio, Domenico Martone, Mirjana Milic, Padulo Johnny
This study aimed to assess the chronic effects of vertical and horizontal drop-jump-based protocols on neuromuscular explosive abilities such as jumping, sprinting, and change of direction (COD). Eighteen elite male handball players (age 23.4 ± 4.6 years; height 192.5 ± 3.7 cm; weight 87.8 ± 7.4 kg) were assigned to either vertical drop jump (VDJ) or horizontal drop jump (HDJ) group training twice a week for 10 weeks. Participants performed 5-8 sets × 6-10 repetitions of vertical-alternate (VDJ) or horizontal-alternate (HDJ) one-leg drop-jumps, landing from the top of a platform 25 cm in height...
July 7, 2016: Journal of Strength and Conditioning Research
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