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https://www.readbyqxmd.com/read/28535098/ball-contact-injuries-in-11-national-collegiate-athletic-association-sports-the-injury-surveillance-program-2009-2010-through-2014-2015
#1
Melissa A Fraser, Dustin R Grooms, Kevin M Guskiewicz, Zachary Y Kerr
CONTEXT:   Surveillance data regarding injuries caused by ball contact in collegiate athletes have not been well examined and are mostly limited to discussions of concussions and catastrophic injuries. OBJECTIVE:   To describe the epidemiology of ball-contact injuries in 11 National Collegiate Athletic Association (NCAA) sports during the 2009-2010 through 2014-2015 academic years. DESIGN:   Descriptive epidemiology study. SETTING:   Convenience sample of NCAA programs in 11 sports (men's football, women's field hockey, women's volleyball, men's baseball, women's softball, men's and women's basketball, men's and women's lacrosse, and men's and women's soccer) during the 2009-2010 through 2014-2015 academic years...
May 23, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28530486/y-balance-test-performance-following-a-competitive-field-hockey-season-a-pretest-posttest-study
#2
Matthew C Hoch, Lauren A Welsch, Emily M Hartley, Cameron J Powden, Johanna M Hoch
CONTEXT: The Y-Balance Test (YBT) is a dynamic balance assessment used as a preseason musculoskeletal screen to determine injury risk. While the YBT has demonstrated excellent test-retest reliability, it is unknown if YBT performance changes following participation in a competitive athletic season. OBJECTIVE: Determine if a competitive athletic season affects YBT performance in field hockey players. DESIGN: Pretest-posttest. SETTING: Laboratory...
May 22, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28529463/nutrition-practices-and-knowledge-among-ncaa-division-iii-football-players
#3
Elizabeth Lea Abbey, Cynthia Joy Wright, Christina M Kirkpatrick
BACKGROUND: Participation in collegiate American football is physically demanding and may have long-term health implications, particularly in relation to cardiovascular and neurological health. National Collegiate Athletic Association (NCAA) Division III (DIII) football players are a relatively unstudied population, particularly in terms of their dietary habits and knowledge. The aim of the present study was to descriptively evaluate the dietary intake of DIII football players including a subset of linemen and assess the nutritional knowledge and sources of information of these athletes...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28515977/establishing-normative-change-values-in-visual-acuity-loss-during-the-dynamic-visual-acuity-test
#4
Chris Marquez, Monica Lininger, Scot Raab
BACKGROUND: Baseline visual acuity (VA) loss from static to dynamic head conditions assessed using the Dynamic Visual Acuity Testing (DVAT) have not been established in NCAA football players. DVAT assesses the Vestibulo-Ocular Reflex (VOR) which is measured in Logarithm of the Minimum Angle of Resolution (logMAR). Decreased VA beyond baseline measures may detect VOR impairment and impact treatment protocols and assist in return to play decisions post-concussion. HYPOTHESIS/PURPOSE: To establish normative VA mean scores during a static head posture as well as dynamically during the DVAT with a head speed of 150 deg/s in the pitch (vertical) and yaw (horizontal) planes rotating 20 degrees in each direction...
April 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28515972/determination-of-clinically-relevant-differences-in-frontal-plane-hop-tests-in-women-s-collegiate-basketball-and-soccer-players
#5
Kelly Hardesty, Eric J Hegedus, Kevin R Ford, Anh-Dung Nguyen, Jeffrey B Taylor
BACKGROUND: ACL injury prevention programs are less successful in female basketball players than in soccer players. Previous authors have identified anthropometric and biomechanical differences between the athletes and different sport-specific demands, including a higher frequency of frontal plane activities in basketball. Current injury risk screening and preventive training practices do not place a strong emphasis on frontal plane activities. The medial and lateral triple hop for distance tests may be beneficial for use in the basketball population...
April 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28502817/concussion
#6
REVIEW
William J Mullally
Concussion has been recognized as a clinical entity for more than 1000 years. Throughout the 20(th) century it was studied extensively in boxers(1,2,3) but did not pique the interest of the general population as it is the accepted goal of the boxer to inflict such an injury on their opponent. In 2002, however, the possibility that repetitive concussions could result in chronic brain damage and a progressive neurologic disorder was raised by a postmortem evaluation of a retired player in the most popular sports institution in the United States, the National Football League(4,5)...
May 11, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28480575/comprehensive-headache-experience-in-collegiate-student-athletes-an-initial-report-from-the-ncaa-headache-task-force
#7
Tad Seifert, Alicia Sufrinko, Robert Cowan, W Scott Black, Dave Watson, Bill Edwards, Scott Livingston, Keith Webster, David Akers, Mathew Lively, Anthony P Kontos
BACKGROUND: The prevalence of primary headache disorders in the general population provides a unique challenge in the evaluation of headache occurring in the context of sport. Despite a wealth of studies exploring the epidemiology of headache in the layperson, little is known about the prevalence and nature of headaches in collegiate student-athletes. These scenarios are challenging in the return to play context, as it is often unclear whether an athlete has an exacerbation of a primary headache disorder, new onset headache unrelated to trauma, or has suffered a concussive injury...
May 7, 2017: Headache
https://www.readbyqxmd.com/read/28473995/concussion-management-plan-compliance-a-study-of-ncaa-power-5-conference-schools
#8
Thomas A Buckley, Christine M Baugh, William P Meehan, Melissa S DiFabio
BACKGROUND: In response to concerns over concussions and repeated head impacts that occur during sports, the National Collegiate Athletic Association (NCAA) mandated that all member institutions enact a concussion management plan (CMP). Although institutional and health care provider self-reports have been investigated, compliance with NCAA protocol recommendations has not been examined. PURPOSE: To examine the CMPs from the 65 institutions within the NCAA Power 5 conferences for compliance with the NCAA 2015 concussion guidelines...
April 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28467580/how-to-avoid-negative-appendectomies-can-us-achieve-this
#9
Kinyas Kartal, Pınar Yazıcı, Taner Mehmet Ünlü, Mehmet Uludağ, Mehmet Mihmanlı
BACKGROUND: Clinical diagnosis of acute appendicitis is based primarily on symptoms and physical findings. However, diagnosis of appendicitis is not always straightforward. The aim of this study was to demonstrate the diagnostic effectiveness of ultrasonography (US) in these cases in combination with white blood cell count (WBC) and C-reactive protein (CRP) level. METHODS: Retrospective analysis of data collected on 470 consecutive patients who underwent appendectomy at the same institution between January 2014 and January 2016 was conducted...
March 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28452636/mental-health-services-in-ncaa-division-i-athletics-a-survey-of-head-atcs
#10
Laura E Sudano, Christopher M Miles
BACKGROUND: There is a growing awareness of the importance of mental health care in National Collegiate Athletic Association (NCAA) student-athletes; however, there is a lack of literature on mental health resources in collegiate settings. Identifying current practices can set the stage to improve the delivery of care. HYPOTHESIS: There is great variability in resources and current practices and no "standard of care" exists. STUDY DESIGN: Observational, quantitative...
May 2017: Sports Health
https://www.readbyqxmd.com/read/28441037/preseason-anxiety-and-depressive-symptoms-and-prospective-injury-risk-in-collegiate-athletes
#11
Hongmei Li, Jennifer J Moreland, Corinne Peek-Asa, Jingzhen Yang
BACKGROUND: Psychological risk factors are increasingly recognized as important in sport-related injury prevention. Understanding how these psychological factors may affect the risk of injuries could help design effective prevention programs. PURPOSE: To determine the effect of reported preseason anxiety and depressive symptoms on the risk of injuries during a prospective season in a cohort of collegiate athletes. STUDY DESIGN: Cohort study; Level of evidence, 2...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28426514/comparison-of-the-hang-high-pull-and-loaded-jump-squat-for-the-development-of-vertical-jump-and-isometric-force-time-characteristics
#12
Dustin J Oranchuk, Tracey L Robinson, Zachary J Switaj, Eric J Drinkwater
Weightlifting movements have high skill demands and require expert coaching. Loaded jumps have a comparably lower skill demand, but may be similarly effective for improving explosive performance. The purpose of this study was to compare vertical jump performance, isometric force, and rate of force development (RFD) following a ten-week intervention employing the hang high-pull (hang-pull) or trap-bar jump squat (jump-squat). Eighteen NCAA Division II swimmers (8 males, 10 females) with at least one year of resistance training experience volunteered to participate...
April 15, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28426511/an-evaluation-of-time-trial-based-predictions-of-v-combining-dot-above-o2max-and-recommended-training-paces-for-collegiate-and-recreational-runners
#13
E M Scudamore, V W Barry, J M Coons
The purpose of the current study was to determine the accuracy of Jack Daniels' VDOT Running Calculator for the prediction of V[Combining Dot Above]O2max, and recommendations of interval and training paces (pIN & pTH) in samples of NCAA Division 1 track athletes (ATH, n = 11) and recreational runners (REC; n = 9). Predicted variable data were obtained using results from indoor 5km time-trials. Data from the VDOT calculator was compared to laboratory tested V[Combining Dot Above]O2max, pace at V[Combining Dot Above]O2max (V[Combining Dot Above]O2maxpace), and lactate threshold pace (LTpace)...
April 15, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28423285/the-epidemiology-of-high-ankle-sprains-in-national-collegiate-athletic-association-sports
#14
Timothy C Mauntel, Erik A Wikstrom, Karen G Roos, Aristarque Djoko, Thomas P Dompier, Zachary Y Kerr
BACKGROUND: Ankle sprains are among the most common injuries experienced by collegiate athletes. The type of ankle sprain is rarely differentiated in epidemiological studies. This differentiation is necessary, as each ankle sprain type has a unique injury mechanism and recovery period. High ankle sprains commonly result in long recovery periods. Thus, a further examination of the epidemiology of high ankle sprains is warranted. PURPOSE: To describe the epidemiology of high ankle sprains in National Collegiate Athletic Association (NCAA) sports during the 2009/2010-2014/2015 academic years...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28422586/the-reactive-strength-index-reflects-vertical-stiffness-during-drop-jumps
#15
Kristof Kipp, Michael T Kiely, Matthew D Giordanelli, Philip J Malloy, Christopher F Geiser
The reactive strength index (RSI) is often used to quantify drop jump (DJ) performance; however, not much is known about the biomechanical determinants of the RSI. The purpose of this study was to investigate the correlations between the RSI and several biomechanical variables calculated from DJ performed with different initial drop heights. Twelve, male NCAA DI basketball players performed DJ from drop heights of 30, 45, and 60 cm. Force plates were used to calculate DJ performance parameters (i.e., DJ height, contact time, and RSI) and DJ biomechanical variables (i...
April 19, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28413876/generation-of-an-orthogonal-protein-protein-interface-with-a-noncanonical-amino-acid
#16
Minseob Koh, Fariborz Nasertorabi, Gye Won Han, Raymond C Stevens, Peter G Schultz
We have engineered the protein interface of the Escherichia coli chorismate mutase (EcCM) homodimer to be dependent on incorporation of a noncanonical amino acid (ncAA) at residue 72. The large hydrophobic amino acid p-benzoyl phenylalanine (pBzF) was substituted for Tyr72, which led to a catalytically inactive protein. A library of five residues (Leu25', Arg29', Leu76, Ile80' and Asp83') surrounding pBzF72 was generated and subjected to a growth based selection in a chorismate mutase deficient strain. An EcCM variant (Phe25', pBzF72, Thr76, Gly80' and Tyr83') forms a stable homodimer, has catalytic activity similar to the wild type enzyme, and unfolds with a Tm of 53 °C...
April 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28393012/the-effect-of-repetitive-subconcussive-collisions-on-brain-integrity-in-collegiate-football-players-over-a-single-football-season-a-multi-modal-neuroimaging-study
#17
Semyon M Slobounov, Alexa Walter, Hans C Breiter, David C Zhu, Xiaoxiao Bai, Tim Bream, Peter Seidenberg, Xianglun Mao, Brian Johnson, Thomas M Talavage
The cumulative effect of repetitive subconcussive collisions on the structural and functional integrity of the brain remains largely unknown. Athletes in collision sports, like football, experience a large number of impacts across a single season of play. The majority of these impacts, however, are generally overlooked, and their long-term consequences remain poorly understood. This study sought to examine the effects of repetitive collisions across a single competitive season in NCAA Football Bowl Subdivision athletes using advanced neuroimaging approaches...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28383282/epidemiology-of-quadriceps-strains-in-national-collegiate-athletic-association-athletes-2009-2010-through-2014-2015
#18
Timothy G Eckard, Zachary Y Kerr, Darin A Padua, Aristarque Djoko, Thomas P Dompier
CONTEXT:   Few researchers have examined the rates and patterns of quadriceps strains in student-athletes in the National Collegiate Athletic Association (NCAA). OBJECTIVE:   To describe the epidemiology of quadriceps strains in 25 NCAA sports during the 2009-2010 through 2014-2015 academic years. DESIGN:   Descriptive epidemiology study. SETTING:   Convenience sample of NCAA programs from 25 sports during the 2009-2010 through 2014-2015 academic years...
May 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28383180/two-tier-screening-platform-for-directed-evolution-of-aminoacyl-trna-synthetases-with-enhanced-stop-codon-suppression-efficiency
#19
Andrew E Owens, Katherine T Grasso, Christine A Ziegler, Rudi Fasan
Genetic code expansion via amber stop suppression provides a powerful tool for introducing non-proteinogenic functionalities into proteins for a broad range of applications. Here, we report the implementation of a versatile platform for the development of engineered aminoacyl-tRNA synthetases with enhanced efficiency in mediating ncAA incorporation via amber stop codon suppression. This system integrates a white/blue colony screen with a plate-based colorimetric assay, thereby combining high-throughput capabilities with reliable and quantitative measurement of AARS-dependent ncAA incorporation efficiency...
April 6, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28371162/protein-crosslinking-by-genetically-encoded-noncanonical-amino-acids-with-reactive-aryl-carbamate-side-chains
#20
Weimin Xuan, Sida Shao, Peter G Schultz
The use of genetically encoded noncanonical amino acids (ncAAs) to construct crosslinks within or between proteins has emerged as a useful method to enhance protein stability, investigate protein-protein interactions, and improve the pharmacological properties of proteins. We report ncAAs with aryl carbamate side chains (PheK and FPheK) that can react with proximal nucleophilic residues to form intra- or intermolecular protein crosslinks. We evolved a pyrrolysyl-tRNA synthetase that incorporates site-specifically PheK and FPheK into proteins in both E...
April 3, 2017: Angewandte Chemie
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