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https://www.readbyqxmd.com/read/28530452/overground-propulsion-kinematics-and-acceleration-in-elite-wheelchair-rugby
#1
David S Haydon, Ross A Pinder, Paul N Grimshaw, William S P Robertson
PURPOSE: Maximal acceleration from standstill has been identified as a key performance indicator in wheelchair rugby; however, the impact of classification and kinematic variables on performance has received limited attention. This study aimed to investigate kinematic variables during maximal acceleration, with level of activity limitation accounted for using sport classification scores. METHODS: 25 elite wheelchair rugby players were analysed in high-, mid-, and low-point groups based on their sporting classification score, which reflects the combined trunk, arm, and hand function, before completing five 5m sprints from a stationary position...
May 22, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28500002/cross-label-suppression-a-discriminative-and-fast-dictionary-learning-with-group-regularization
#2
Xiudong Wang, Yuantao Gu
This paper addresses image classification through learning a compact and discriminative dictionary efficiently. Given a structured dictionary with each atom (columns in the dictionary matrix) related to some label, we propose crosslabel suppression constraint to enlarge the difference among representations for different classes. Meanwhile, we introduce group regularization to enforce representations to preserve label properties of original samples, meaning the representations for the same class are encouraged to be similar...
May 10, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28479281/explaining-match-outcome-and-ladder-position-in-the-national-rugby-league-using-team-performance-indicators
#3
Carl T Woods, Wade Sinclair, Sam Robertson
OBJECTIVES: To examine the extent at which match outcome and ladder position could be explained using team performance indicators in the National Rugby League (NRL). METHODS: The dataset consisted of 13 performance indicators acquired from each NRL team across the 2016 season (n=376 observations). Data was sorted according to apriori match outcome (win/loss) and ladder position (one to 16). Given the binary and categorical nature of the response variables, two analysis approaches were used; a conditional interference classification tree and ordinal regression...
April 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28475400/trends-in-sports-related-concussion-diagnoses-in-the-usa-a-population-based-analysis-using-a-private-payor-database
#4
Kelms Amoo-Achampong, Samuel Rosas, Nicholas Schmoke, Yves-Dany Accilien, Benedict U Nwachukwu, Frank McCormick
OBJECTIVE: To describe recent epidemiological trends in concussion diagnosis within the United States (US) population. METHODS: We conducted a retrospective review of PearlDiver, a private-payor insurance database. Our search included International Classification of Disease, Ninth Revision codes for sports-related concussions spanning 2010 through 2014. Overall study population included patients aged 5 to 39 with subgroup analysis performed on Cohort A (Youth), children and adolescents aged 5 to 19, and Cohort B (Adults), adults aged 20 to 39...
May 17, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28451607/outcomes-after-arthroscopic-bankart-repair-in-adolescent-athletes-participating-in-collision-and-contact-sports
#5
Michael G Saper, Charles Milchteim, Robert L Zondervan, James R Andrews, Roger V Ostrander
BACKGROUND: Literature on arthroscopic stabilization in adolescent patients participating in collision and contact sports is limited, as most studies include adolescents within a larger sample group comprised primarily of adults. PURPOSE: To review the outcomes of arthroscopic Bankart repair for anterior shoulder instability in an adolescent population participating in collision and contact sports. STUDY DESIGN: Case series; Level of evidence, 4...
March 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28447871/the-effects-of-specialization-and-sex-on-anterior-y-balance-performance-in-high-school-athletes
#6
Madeline M Miller, Jessica L Trapp, Eric G Post, Stephanie M Trigsted, Timothy A McGuine, M Alison Brooks, David R Bell
BACKGROUND: Sport specialization and movement asymmetry have been separately discussed as potential risk factors for lower extremity injury. Early specialization may lead to the development of movement asymmetries that can predispose an athlete to injury, but this has not been thoroughly examined. HYPOTHESIS: Athletes rated as specialized would exhibit greater between-limb anterior reach asymmetry and decreased anterior reach distance on the Y-balance test (YBT) as compared with nonspecialized high school athletes, and these differences would not be dependent on sex...
April 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28435339/compulsive-exercise-links-risks-and-challenges-facedent
#7
REVIEW
Mia Beck Lichtenstein, Cecilie Juul Hinze, Bolette Emborg, Freja Thomsen, Simone Daugaard Hemmingsen
Compulsive exercise is a condition described since 1970s. It is characterized by a craving for physical training, resulting in uncontrollable excessive exercise behavior with harmful consequences, such as injuries and impaired social relations. It has not been accepted as a mental disorder in either International Classification of Diseases or Diagnostic and Statistical Manual of Mental Disorders. The aim of this literature review was to critically examine the research on links (comorbidity), risks (negative consequences), and challenges faced (problems in a treatment context)...
2017: Psychology Research and Behavior Management
https://www.readbyqxmd.com/read/28416353/eating-disorders-and-weight-control-behaviors-change-over-a-collegiate-sport-season
#8
Alexandra Thompson, Trent Petrie, Carlin Anderson
OBJECTIVES: Determine whether the prevalence of eating disorder classifications (i.e., clinical eating disorder, subclinical eating disorder, and asymptomatic) and pathogenic weight control behaviors (e.g., bingeing, vomiting) change over a five-month sport season. DESIGN: Longitudinal study. METHODS: Female collegiate gymnasts and swimmers (N=325) completed the Questionnaire for Eating Disorder Diagnoses as well as six items from the Bulimia Test-Revised at Time 1 (two weeks into the beginning of their athletic season) and Time 2 (final two weeks of the athletic season); data collections were separated by five months...
March 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28359131/-sports-injuries-and-illnesses-of-the-german-national-team-during-the-2016-olympic-summer-games-in-rio-de-janeiro
#9
Casper Grim, Thilo Hotfiel, Martin Engelhardt, Syndey Plewinski, Olav Spahl, Bernd Wolfarth
Background This article aims to survey and describe the injuries and illnesses of the German Team during the 2016 Olympic Games in Rio de Janeiro. Methods Through an electronic documentation system, injuries and illnesses requiring treatment were recorded and evaluated. An injury or illness was defined as any physical symptom that required medical attention and impaired participation in training and/or competition. The classification distinguished between type of injury (acute or overload), region and type of illness (infections, skin, allergy, etc...
January 2017: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/28355979/longitudinal-monitoring-of-patients-with-chronic-low-back-pain-during-physical-therapy-treatment-using-the-start-back-screening-tool
#10
Flávia Cordeiro Medeiros, Leonardo Oliveira Pena Costa, Marco Aurélio Nemitalla Added, Evelyn Cassia Salomão, Lucíola da Cunha Menezes Costa
Study Design Preplanned secondary analysis of a randomized clinical trial. Background The STarT Back Screening Tool (SBST) was developed to screen and to classify patients with low back pain into subgroups for the risk of having a poor prognosis. However, this classification at baseline does not take into account variables that can influence the prognosis during treatment or over time. Objectives (1) To investigate the changes in risk subgroup measured by the SBST over a period of 6 months, and (2) to assess the long-term predictive ability of the SBST when administered at different time points...
May 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28344740/orchard-sports-injury-classification-system-10-1-plus-an-end-user-study
#11
Ashley K Crossway, Kenneth E Games, Lindsey E Eberman, Neil Fleming
The purpose of this study was to establish the level of ease of use and effectiveness of the Orchard Sport Injury Classification System (OSICS) 10.1 Plus for recording injuries and interventions. Three hundred and forty-two (males=148, females=192, no response=2; age=30.9±9.5y; experience=9.1±10.5y) athletic trainers (ATs) in the United States completed the survey. Participants were primarily employed in the secondary school (n=135) or collegiate setting (n=171). Participants entered system includes the OSICS 10...
2017: International Journal of Exercise Science
https://www.readbyqxmd.com/read/28338226/exploring-and-modelling-impacts-of-third-molar-experience-on-quality-of-life-a-real-time-qualitative-study-using-twitter
#12
Kamal Hanna, Paul Sambrook, Jason M Armfield, David S Brennan
OBJECTIVES: This study had two objectives: (i) to explore and model domains describing the real-time impact of third molars (TMs) on quality of life (QoL); and (ii) to assess the percentage coverage, in some generic health-related quality of life (HRQoL) and oral health-related quality of life (OHRQoL) instruments, of the TM QoL domains identified in this study. METHODOLOGY: A global cross-sectional sample of tweets containing 'wisdom tooth' over a 1-week period retrieved 3,537 tweets...
March 24, 2017: International Dental Journal
https://www.readbyqxmd.com/read/28334382/concussion-like-symptom-reporting-in-non-concussed-collegiate-athletes
#13
Breton M Asken, Aliyah R Snyder, James R Clugston, Leslie S Gaynor, Molly J Sullan, Russell M Bauer
Objective: Non-concussed individuals may report a variety of concussion-like symptoms even in the absence of a diagnosed brain injury. Previous studies described concussion-like symptom reporting in adolescent athletes. This study provides complementary data on concussion-like symptoms in collegiate athletes. Methods: We analyzed baseline symptom scales from 738 collegiate athletes (452 men and 286 women) who completed either the Sport Concussion Assessment Tool, 3 Symptom Evaluation (S3SE; n = 377) or the Post-Concussion Scale (PCS; n = 361) and determined if subjects met criteria for diagnosis of International Classification of Diseases 10th Revision (ICD-10) postconcussional syndrome...
March 10, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28286964/factors-impacting-participation-in-sports-for-children-with-limb-absence-a-qualitative-study
#14
Batoul Sayed Ahmed, Marena Lamy, Debra Cameron, Lisa Artero, Sandra Ramdial, Matthew Leineweber, Jan Andrysek
BACKGROUND: Individuals with limb absence benefit from participating in sports. While barriers and facilitators affecting sport participation are well documented for adults, they have not been explored for children with limb absence. PURPOSE: To identify the perceived factors impacting participation in sports according to children with limb absence and their parents. METHODS: This study uses a descriptive qualitative study design. Nineteen participants, consisting of children and their parents, were recruited from an outpatient hospital clinic for semi-structured interviews...
March 12, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28278378/subsequent-injuries-are-more-common-than-injury-recurrences
#15
Caroline F Finch, Jill Cook, Breanne E Kunstler, Muhammad Akram, John Orchard
BACKGROUND: It is known that some people can, and do, sustain >1 injury over a playing season. However, there is currently little high-quality epidemiological evidence about the risk of, and relationships between, multiple and subsequent injuries. PURPOSE: To describe the subsequent injuries sustained by Australian Football League (AFL) players over 1 season, including their most common injury diagnoses. STUDY DESIGN: Cohort study; Level of evidence, 3...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28276909/how-should-we-categorise-self-reported-data-on-subsequent-injuries
#16
Philip von Rosen, Annette Heijne
Classifying subsequent injuries is of high importance in injury epidemiology since a previous injury has been reported to increase the risk of a new injury or increase the risk of a more severe injury. Multiple reports have shown that self-reported data provide an extensive view of an injury problem and add valuable information to the understanding of the athlete's health. The purpose of this study was to display a method that can be used to facilitate classification of subsequent injuries and to discuss challenges faced when categorising subsequent injuries based on self-reported data...
March 5, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28269683/classification-of-squat-quality-with-inertial-measurement-units-in-the-single-leg-squat-mobility-test
#17
Rezvan Kianifar, Alex Lee, Sachin Raina, Dana Kulic
Many assessment and diagnosis protocols in rehabilitation, orthopedic surgery and sports medicine rely on mobility tests like the Single Leg Squat (SLS). In this study, a set of three Inertial Measurement Units (IMUs) were used to estimate the joint pose during SLS and to classify the SLS as poor, moderate or good. An Extended Kalman Filter pose estimation method was used to estimate kinematic joint variables, and time domain features were generated based on these variables. The most important features were then selected and used to train Support Vector Machine (SVM), Linear Multinomial Logistic Regression, and Decision Tree classifiers...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269329/vo2-estimation-using-6-axis-motion-sensor-with-sports-activity-classification
#18
Takashi Nagata, Naoteru Nakamura, Masato Miyatake, Akira Yuuki, Hiroyuki Yomo, Takashi Kawabata, Shinsuke Hara
In this paper, we focus on oxygen consumption (VO2) estimation using 6-axis motion sensor (3-axis accelerometer and 3-axis gyroscope) for people playing sports with diverse intensities. The VO2 estimated with a small motion sensor can be used to calculate the energy expenditure, however, its accuracy depends on the intensities of various types of activities. In order to achieve high accuracy over a wide range of intensities, we employ an estimation framework that first classifies activities with a simple machine-learning based classification algorithm...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28251560/scaphoid-fractures-in-the-athlete
#19
REVIEW
Mark J Winston, Andrew J Weiland
Scaphoid fractures are a common wrist injury, especially in athletes. Clinicians should have a high index of suspicion for a scaphoid fracture in any patient complaining of radial-sided wrist pain after a fall on an outstretched hand. Advanced imaging, including CT and MRI scans, may be useful in diagnosis and classification of fracture patterns. Treatment varies based on the fracture location, stability of the fracture, and predictability of the fracture to heal. Treatment involves either non-operative management with a thumb spica cast or brace, or operative fixation with a headless compression screw, k-wires, or scaphoid-specific plates...
March 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28241132/validation-of-the-german-version-of-the-commitment-to-exercise-scale
#20
Almut Zeeck, Sabine Schlegel, Katrin E Giel, Florian Junne, Christine Kopp, Andreas Joos, Caroline Davis, Armin Hartmann
Pathological forms of exercising are a topic of debate in terms of classification, etiology, and treatment. Validated instruments are a precondition for research in this field. The aim of this study was to validate the German version of the Commitment to Exercise Scale (CES-de). A confirmatory factor analysis was conducted using data from a large community sample (n = 571). In a second study, 100 eating disordered patients, 107 elite athletes and 100 individuals engaged in leisure time sporting activities were compared to assess discriminant validity and psychological correlates...
2017: Psychopathology
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