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sports classifications

Jules Gellaerts, Evgeny Bogdanov, Farzin Dadashi, Benoit Mariani
Ski Mountaineering (SkiMo) is a fast growing sport requiring both endurance and technical skills. It involves different types of locomotion with and without the skis. The aim of this study is to develop and validate in the snowfield a novel inertial-based system for analysing cycle parameters and classifying movement in SkiMo in real-time. The study was divided into two parts, one focused on real-time parameters estimation (cadence, distance from strides, stride duration, stride length, number of strides, slope gradient, and power) and, second, on transition detection (kickturns, skin on, skin off, ski on and off backpack) in order to classify between the different types of locomotion...
March 16, 2018: Sensors
Valentina Camomilla, Elena Bergamini, Silvia Fantozzi, Giuseppe Vannozzi
Recent technological developments have led to the production of inexpensive, non-invasive, miniature magneto-inertial sensors, ideal for obtaining sport performance measures during training or competition. This systematic review evaluates current evidence and the future potential of their use in sport performance evaluation. Articles published in English (April 2017) were searched in Web-of-Science, Scopus, Pubmed, and Sport-Discus databases. A keyword search of titles, abstracts and keywords which included studies using accelerometers, gyroscopes and/or magnetometers to analyse sport motor-tasks performed by athletes (excluding risk of injury, physical activity, and energy expenditure) resulted in 2040 papers...
March 15, 2018: Sensors
Curtis L Tomasevicz, Jack W Ransone, Christopher W Bach
The requisite combination of speed, power, and strength necessary for a bobsled push athlete coupled with the difficulty in directly measuring pushing ability makes selecting effective push crews challenging. Current practices by USA Bobsled and Skeleton (USABS) utilize field combine testing to assess and identify specifically selected performance variables in an attempt to best predict push performance abilities. Combine data consisting of 11 physical performance variables were collected from 75 subjects across two winter Olympic qualification years (2009 and 2013)...
March 12, 2018: Journal of Strength and Conditioning Research
Tea Galic, Domagoj Kuncic, Tina Poklepovic Pericic, Ivan Galic, Frane Mihanovic, Josko Bozic, Mark Herceg
BACKGROUND/AIMS: The increasing popularity of participating in sports activities among children and adolescents has increased the risk of sports-retaled orofacial and dental injuries. Therefore, it is important to establish efficient preventive strategies regarding sports-related dental trauma The aim of this study was to evaluate the occurrence of sports-related dental injuries in young athletes and to compare the frequency of such injuries between high-risk and medium-risk sports, along with assessing athletes' attitudes and habits regarding mouthguard use...
March 11, 2018: Dental Traumatology: Official Publication of International Association for Dental Traumatology
Kristian Thorborg, Michael P Reiman, Adam Weir, Joanne L Kemp, Andreas Serner, Andrea Mosler, Per Hölmich
Study Design Groin pain is common in athletes participating in multidirectional sports and has traditionally been considered a difficult problem to understand, diagnose, and manage. This may be due to sparse historical focus on this complex region in sports medicine. Until recently, there was no agreement regarding terminology, definitions, and classification of groin pain in athletes. This has made clear communication between clinicians difficult, and the results of research difficult to interpret and implement into practice...
March 6, 2018: Journal of Orthopaedic and Sports Physical Therapy
Liam A Toohey, Michael K Drew, Lauren V Fortington, Caroline F Finch, Jill L Cook
BACKGROUND: Accounting for subsequent injuries is critical for sports injury epidemiology. The subsequent injury categorisation (SIC-1.0) model was developed to create a framework for accurate categorisation of subsequent injuries but its operationalisation has been challenging. OBJECTIVES: The objective of this study was to update the subsequent injury categorisation (SIC-1.0 to SIC-2.0) model to improve its utility and application to sports injury datasets, and to test its applicability to a sports injury dataset...
March 3, 2018: Sports Medicine
Gianmarco Lombardi, Anna Rita Sorbo, Gianluigi Guida, Lara La Brocca, Riccardo Fenici, Donatella Brisinda
Ventricular arrhythmias (VAs) with left bundle-branch-block and inferior axis morphology (LBBB-IA), suggestive of outflow tract (OT) origin, are a challenge in sports medicine because they can be benign or expression of a silent cardiomyopathy. Non-invasive classification is essential to plan ablation strategy if required. We aimed to evaluating magnetocardiographic (MCG) discrimination of OT-VAs site of origin (SoO). MCG and ECG data of 26 sports activity practitioners, with OT-VAs were analyzed. OT-VAs-SoO was classified with discriminant analysis (DA) of 8 MCG parameters and with invasively-validated ECG algorithms...
February 16, 2018: Journal of Electrocardiology
Philip Rosinsky, Oren Sarig, Yehuda David, Amir Oron
Mallet finger is a common injury involving the extensor mechanism of the finger. It presents as an inability to extend the distal phalanx of the digit. In the right clinical setting, a thorough examination should be performed and supplemented by adequate radiographs. The mechanism of injury is usually a direct blow to an extended finger causing hyperflexion or hyperextension of the distal phalanx. Common occurrences are in young adults during sporting activities or in minor falls or trauma in osteoporotic individuals...
February 2018: Harefuah
Dawn P Andrews, Kari B Odland-Wolf, James May, Russell Baker, Alan Nasypany
Background and Purpose: Secondary impingement syndrome (SIS) is a common complaint in the sporting population particularly among athletes engaging in overhead activities. While symptoms may be present at the shoulder with patients complaining of SIS, spinal alignment or dysfunction can influence scapular positioning and overall shoulder girdle function. As an adjunct therapy to traditional interventions for SIS, thoracic high-velocity low-amplitude (HVLA) thrusts have been utilized and correlated with patient reported decreases in pain...
February 2018: International Journal of Sports Physical Therapy
Rafael L Kons, Jonathan Ache-Dias, Daniele Detanico, Jonathan Barth, Juliano Dal Pupo
Kons, RL, Ache-Dias, J, Detanico, D, Barth, J, and Dal Pupo, J. Is vertical jump height an indicator of athletes' power output in different sports modalities? J Strength Cond Res 32(3): 708-715, 2018-This study aimed to identify whether the ratio standard is adequate for the scaling of peak power output (PPO) for body mass (BM) in athletes of different sports and to verify classification agreement for athletes involved in different sports using PPO scaled for BM and jump height (JH). One hundred and twenty-four male athletes divided into 3 different groups-combat sports, team sports, and runners-participated in this study...
March 2018: Journal of Strength and Conditioning Research
Lukas D Trachsel, Christoph P Ryffel, Stefano De Marchi, Christian Seiler, Nicolas Brugger, Prisca Eser, Matthias Wilhelm
BACKGROUND: Long-term endurance sport practice leads to eccentric left ventricular hypertrophy (LVH). We aimed to compare the new 4-tiered classification (4TC) for LVH with the established 2-tiered classification (2TC) in a cohort of normotensive non-elite endurance athletes. METHODS: Male participants of a 10-mile race were recruited and included when blood pressure (BP) was normal (<140/90 mmHg). Phenotypic characterization of LVH was based on relative wall thickness (2TC), and on LV concentricity2/3 (LV mass/end-diastolic volume [LVM/EDV]2/3) plus LVEDV index (4TC)...
2018: PloS One
Arnlaug Wangensteen, Ali Guermazi, Johannes L Tol, Frank W Roemer, Bruce Hamilton, Juan-Manuel Alonso, Rodney Whiteley, Roald Bahr
OBJECTIVES: To determine agreement between modified Peetrons, Chan acute muscle strain injury classification and British Athletics Muscle Injury Classification (BAMIC) and to investigate their associations and ability to predict time to return to sport (RTS). METHODS: Male athletes (n=176) with acute hamstring injury and MRI (1.5T) ≤5 days were followed until RTS. MRIs were scored using standardised forms. RESULTS: For MRI-positive injuries there was moderate agreement in severity grading (κ = 0...
February 19, 2018: European Radiology
Hong-Wei Xu, Xiao-Jun He, Zhong-Wei Zhang, Gang Chen
OBJECTIVE: To evaluate the outcome of Titanium Elastic intramedullary nailing(TEN) for the treatment of refracture of clavicle. METHODS: From March 2010 to March 2016, 9 cases of clavicle fracture, postoperative re-fracture (plate broken before fracture healing, plate and screw pull out or refracture after fracture union and internal fixation removal) included 6 males and 3 females with a mean age of 38.6 years old ranging from 20 to 62 years old; 3 cases were sports injury, 5 cases were traffic injury, 1 case was severe injury...
October 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
K Bušková, D Kuběnová, M Tuček
Fractures of the fifth metatarsal base are among the most common fractures of the foot. They are typically caused by indirect violence during sports activities. This region is also a site where stress fractures occur frequently. Diagnosis is based on the patients medical history, clinical examination and imaging methods. The fundamental imaging method is radiography of the foot in three views. MRI is used primarily for early diagnosis of stress fractures. CT examination is beneficial mainly in complex foot injuries, in order to rule out associated fractures...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
Stephen Mark Hadlow, Derek Panchuk, David Lindsay Mann, Marc Ronald Portus, Bruce Abernethy
OBJECTIVES: To overview a framework that provides a theoretically-grounded approach to predicting the types of modified perceptual training tasks that will stimulate transfer of improved perceptual skills to sport performance environments. Modified perceptual training (MPT) collectively describes on- or off-field sports training tasks that are specifically designed to develop visual and perceptual-cognitive skill. Traditional training approaches in sport include sports vision training and perceptual-cognitive training, while recently, new technologies have enabled a broad range of additional MPT tools to become available to coaches and athletes...
February 3, 2018: Journal of Science and Medicine in Sport
Ted Polglaze, Cruz Hogan, Brian Dawson, Alec Buttfield, Cristian Osgnach, Leanne Lester, Peter Peeling
PURPOSE: To assess the efficacy of critical metabolic power derived from variable-speed movement for classifying intensity in team sport activity. METHODS: Elite male hockey players (n = 12) completed a series of time trials (100 yd, 400 yd, 1500 yd) and a 3-min all-out test to derive both critical speed (CS) and critical power (CP). Heart rate (HR), blood lactate (BLa) and rating of perceived exertion (RPE) were measured during each protocol. Participants (n = 10) then played 2 competitive hockey matches...
February 9, 2018: Medicine and Science in Sports and Exercise
Rienk M A van der Slikke, Annemarie M H de Witte, Monique A M Berger, Daan J J Bregman, Dirk Jan H E J Veeger
PURPOSE: The purpose of this study was to provide insight in the effect of wheelchair settings on wheelchair mobility performance. METHODS: Twenty elite wheelchair basketball athletes of low (n=10) and high classification (n=10), were tested in a wheelchair basketball directed field test. Athletes performed the test in their own wheelchair, which was modified for five additional conditions regarding seat height (high - low), mass (central - distributed) and grip...
February 12, 2018: International Journal of Sports Physiology and Performance
Enrico Spinas, Antonello Mameli, Luca Giannetti
Background: Traumatic dental injuries (TDIs) represent 18-30% of all oral pathologies and a considerable number of these are sports related. It is very important to treat sports-related injuries and prevent complications. However, very few studies investigate the most expedient therapeutic strategies for the treatment of dental trauma correlated to sports. Objective: The aim of this work was to focus on the average recovery time for different lesions, to assess adequate times for each athlete, to identify any association with complications and to investigate whether or not the use of mouth-guards interfered with a full recovery to normal health...
2018: Open Dentistry Journal
Brian E Menaker, Adam E Barry, Steven M Howell
Sporting events in the U.S., particularly college football games, provide an opportunity for high-risk alcohol consumption that can result in alcohol-related consequences and associated public safety issues. Policy implication and predicting alcohol-related misconduct at college football games has become a concern for university administrators. To address this issue, we explored the extent to which the profile of a game or opponent-whether that be operationalized by classification (e.g., in-state opponent, conference opponent) or opponent quality (e...
February 8, 2018: Journal of Primary Prevention
Mohammad Qasem, Keith George, John Somauroo, Lynsey Forsythe, Benjamin Brown, David Oxborough
Our objective was to assess the influence of different levels of exposure to dynamic training on right ventricular (RV) structure, function and mechanics in elite male athletes. We recruited 492 male elite athletes aged between 18 and 30 years old. Athletes were grouped according to their sporting discipline using the Mitchell Classification as Low Dynamic (LD), Moderate Dynamic (MD) or High Dynamic (HD). All participants underwent 2D, Doppler, tissue Doppler and strain (ε) echocardiography with a focused and comprehensive assessment of the right heart...
February 7, 2018: International Journal of Cardiovascular Imaging
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