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https://www.readbyqxmd.com/read/28869402/the-epidemiology-of-back-neck-spine-injuries-in-national-collegiate-athletic-association-men-s-and-women-s-ice-hockey-2009-2010-to-2014-2015
#1
Alyssa B Zupon, Zachary Y Kerr, Sara L Dalton, Thomas P Dompier, Elizabeth C Gardner
This study describes the epidemiology of back/neck/spine injuries in National Collegiate Athletic Association (NCAA) men's and women's ice hockey. Data from 66 NCAA men's and 29 women's ice hockey programmes (total of 147 and 67 team-seasons, respectively) were analysed from the NCAA Injury Surveillance Program during the 2009/2010-2014/2015 academic years. In the study period, 226 and 97 back/neck/spine injuries were reported in men and women, respectively, for injury rates of 0.56 and 0.65/1000 athlete exposures...
September 4, 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28859810/global-substitution-of-hemeproteins-with-noncanonical-amino-acids-in-escherichia-coli-with-intact-cofactor-maturation-machinery
#2
Jan-Stefan Völler, Tuyet Mai Thi To, Hernan Biava, Beate Koksch, Nediljko Budisa
Global substitution of canonical amino acids (cAAs) with noncanonical (ncAAs) counterparts in proteins whose function is dependent on post-translational events such as cofactor binding is still a methodically challenging and difficult task as ncAA insertion generally interferes with the cofactor biosynthesis machinery. Here, we report a technology for the expression of fully substituted and functionally active cofactor-containing hemeproteins. The maturation process which yields an intact cofactor is timely separated from cAA→ncAA substitutions...
November 2017: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/28858056/putting-muscle-into-sports-analytics-strength-conditioning-and-ice-hockey-performance
#3
Kevin M Kniffin, Thomas Howley, Cole Bardreau
Sports analytics is best known as the field of research that focuses on discovering slight but significant improvements within competitions; however, broader sets of athlete- and team-level data from outside of competitions (e.g., strength and conditioning metrics) have been typically left out from such analyses. Given that strength and conditioning programs are perhaps the most common avenue through which people expect extra-competition progress to translate into within-competition performance, it is clear that strength and conditioning metrics warrant closer analytic attention...
August 26, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28858054/utilizing-microsensor-technology-to-quantify-match-demands-in-collegiate-women-s-volleyball
#4
Travis G Vlantes, Tucker Readdy
The purpose of this study was to quantify internal and external load demands of women's NCAA Division I collegiate volleyball competitions using microsensor technology and session rating of perceived exertion (S-RPE). Eleven collegiate volleyball players wore microsensor technology (Optimeye S5; Catapult Sports USA, Chicago, IL) during fifteen matches played throughout the 2016 season. Parameters examined include: Player load (PL), High impact load (HI PL), percentage of high impact load (% HI PL), Explosive efforts (EE) and jumps...
August 26, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28858051/long-term-changes-in-jump-performance-and-maximum-strength-in-a-cohort-of-ncaa-division-i-women-s-volleyball-athletes
#5
Ashley A Kavanaugh, Satoshi Mizuguchi, William A Sands, Michael W Ramsey, Michael H Stone
The purpose of this investigation was to quantify the magnitude of change in maximal strength and jumping abilities over approximately one, two, and three years of supervised sport and resistance training in NCAA Division I women's volleyball athletes. This was an exploratory study on a cohort of women's volleyball athletes (n=29) split into three groups based on length of time spent in a supervised resistance training program: group 1 (n=11): 0.7±0.3 yrs, group 2 (n=9): 1.6±0.2 yrs, and group 3 (n=9): 2...
August 26, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28852337/injuries-in-collegiate-wrestlers-at-an-elite-division-i-ncaa-wrestling-program-an-epidemiological-study
#6
Jesse E Otero, Christopher M Graves, Matthew J Bollier
BACKGROUND: Injury is common in the sport of wrestling. More than 6000 athletes compete in NCAA wrestling yearly. Despite this popularity, little is known about the epidemiology of wrestlers' injuries and factors affecting return to competition. We hypothesized that patterns of injury and associated factors influence return to participation. METHODS: Retrospective database review of one Division I NCAA wrestling program over nine seasons (2002 to 2011). RESULTS: From 2002 to 2011, 125 wrestlers were varsity participants at a single NCAA Division I program...
2017: Iowa Orthopaedic Journal
https://www.readbyqxmd.com/read/28840153/lower-quarter-y-balance-test-scores-and-lower-extremity-injury-in-ncaa-division-i-athletes
#7
Wilson C Lai, Dean Wang, James B Chen, Jeremy Vail, Caitlin M Rugg, Sharon L Hame
BACKGROUND: Functional movement tests that are predictive of injury risk in National Collegiate Athletic Association (NCAA) athletes are useful tools for sports medicine professionals. The Lower Quarter Y-Balance Test (YBT-LQ) measures single-leg balance and reach distances in 3 directions. PURPOSE: To assess whether the YBT-LQ predicts the laterality and risk of sports-related lower extremity (LE) injury in NCAA athletes. STUDY DESIGN: Case-control study; Level of evidence, 3...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28825605/effect-of-carbohydrate-caffeine-and-carbohydrate-caffeine-mouth-rinsing-on-intermittent-running-performance-in-collegiate-male-lacrosse-athletes
#8
Patrick Dolan, Kyle E Witherbee, Kimi M Peterson, Chad M Kerksick
Dolan, P, Witherbee, KE, Peterson, KM, and Kerksick, CM. Effect of carbohydrate, caffeine, and carbohydrate + caffeine mouth rinsing on intermittent running performance in collegiate male lacrosse athletes. J Strength Cond Res 31(9): 2473-2479, 2017-Recently, an interest has developed in the potential to rinse the oral cavity with key nutrients to impact various types of exercise and presumably sporting performance. Although multiple studies examining carbohydrate mouth rinsing have been completed, conflicting evidence surrounding caffeine mouth rinsing persists, and no research has explored its ability to impact high-intensity, intermittent running performance...
September 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28820856/perceived-wellness-associated-with-practice-and-competition-in-ncaa-division-i-football-players
#9
Aaron D Wellman, Sam C Coad, Patrick J Flynn, Ty K Siam, Christopher P McLellan
The present study assessed the influence of movement demands resulting from weekly practice sessions and games, on perceived wellness measurements taken post-game (Sunday) and 48 hours pre-game (Thursday) throughout the in-season period in National Collegiate Athletic Association (NCAA) division I football players. Thirty players were monitored using GPS receivers (Catapult Innovations OptimEye S5, Melbourne, Australia) during 12 games and 24 in-season practices. Movement variables included low-intensity distance, medium-intensity distance, high-intensity distance, sprint distance, total distance, player load, and acceleration and deceleration distance...
August 15, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28817506/maximum-distance-and-high-speed-distance-demands-by-position-in-ncaa-division-i-collegiate-football-games
#10
Gabriel J Sanders, Brad Roll, Corey A Peacock
The purpose of the study was to quantify the average and maximum distances traveled by NCAA division I football athletes during competitive games. Utilizing global positioning system (GPS) devices (Catapult Sports), total and low, moderate and high speed distances were quantified by each position. Understanding maximal workloads can enhance conditioning practice periodization protocols. A total of 40 football athletes were included in the analysis. For the data to be included, athletes were required to participate in ≥ 75% of the offensive or defensive snaps for any given game...
July 5, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28817504/movement-demands-and-perceived-wellness-associated-with-pre-season-training-camp-in-ncaa-division-i-college-football-players
#11
Aaron D Wellman, Sam C Coad, Patrick J Flynn, Christopher P McLellan, Mike Climstein
The aims of the present study were to examine the movement demands of pre-season practice in National Collegiate Athletic Association (NCAA) division I college football players using portable global positioning system (GPS) technology and to assess perceived wellness associated with pre-season practice to determine if GPS-derived variables from the preceding day influence perceived wellness the following day. Twenty-nine players were monitored using GPS receivers (Catapult Innovations, Melbourne, Australia) during 20 pre-season practices...
July 5, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28812036/incidence-of-sports-related-concussion-among-ncaa-women-s-ice-hockey-athletes
#12
Emily M Brook, Emily Kroshus, Caroline H Hu, Marissa Gedman, Jamie E Collins, Elizabeth G Matzkin
BACKGROUND: There are limited data on the incidence of concussion and concussion symptom nondisclosure among collegiate women's ice hockey athletes. PURPOSE: To determine the incidence of sports-related concussion (SRC) in National Collegiate Athletic Association (NCAA) women's ice hockey athletes. STUDY DESIGN: Descriptive epidemiology study. METHODS: An anonymous online survey was completed by 459 NCAA women's ice hockey athletes...
July 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28811750/availability-of-a-sports-dietitian-may-lead-to-improved-performance-and-recovery-of-ncaa-division-i-baseball-athletes
#13
Michael V Hull, Jonathan Neddo, Andrew R Jagim, Jonathan M Oliver, Mike Greenwood, Margaret T Jones
BACKGROUND: The purpose was to survey dietary habits (DH) and nutrient timing (NT) practices of baseball student-athletes (mean ± SD; 20.7 ± 1.4 yr.) from three NCAA Division I institutions, and examine the effect of a sports dietitian (SD) in regard to nutrition practices. METHODS: Descriptive statistics and Pearson X(2) analyses were run. Responses on 10 DH and 5 NT items differed (p ≤ 0.10) between athletes who sought dietary planning from a SD (n = 36) versus those who consulted a strength and conditioning coach (SCC, n = 42)...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28809560/recombinant-macrocyclic-lanthipeptides-incorporating-non-canonical-amino-acids
#14
Claudio Zambaldo, Xiaozhou Luo, Angad P Mehta, Peter G Schultz
Nisin is a complex lanthipeptide that has broad spectrum antibacterial activity. In efforts to broaden the structural diversity of this ribosomally synthesized lantibiotic, we now report the recombinant expression of Nisin variants that incorporate noncanonical amino acids (ncAAs) at discrete positions. This is achieved by expressing the nisA structural gene, cyclase (nisC) and dehydratase (nisB), together with an orthogonal nonsense suppressor tRNA/aminoacyl-tRNA synthetase pair in Escherichia coli. A number of ncAAs with novel chemical reactivity were genetically incorporated into NisA, including an α-chloroacetamide-containing ncAA that allowed for the expression of Nisin variants with novel macrocyclic topologies...
August 15, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28777247/a-comparison-of-pre-season-and-in-season-practice-and-game-loads-in-ncaa-division-i-football-players
#15
Aaron D Wellman, Sam C Coad, Patrick J Flynn, Ty K Siam, Christopher P McLellan
The aim of the present study was to quantify the individual practice and game loads throughout an NCAA division I football season to determine if significant differences exist between the practice loads associated with pre-season training camp and those undertaken during the in-season period. Thirty-one NCAA division I football players were monitored using GPS and IA (MinimaxX S5; Catapult Innovations, Melbourne, Australia) during 22 pre-season practices, 36 in-season practices, and 12 competitions. The season was divided into four distinct phases for data analysis: pre-season week 1 (pre-season1), pre-season week 2 (pre-season2), pre-season week 3 (pre-season3), and 12 in-season weeks...
July 31, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28758722/streptomyces-albus-a-new-cell-factory-for-non-canonical-amino-acids-incorporation-into-ribosomally-synthesized-natural-products
#16
Mariia Lopatniuk, Maksym Myronovskyi, Andriy Luzhetskyy
The incorporation of noncanonical amino acids (ncAAs) with different side chains into a peptide is a promising technique for changing the functional properties of that peptide. Of particular interest is the incorporation of ncAAs into peptide-derived natural products to optimize their biophysical properties for medical and industrial applications. Here, we present the first instance of ncAA incorporation into the natural product cinnamycin in streptomycetes using the orthogonal pyrrolysyl-tRNA synthetase/tRNA(Pyl) pair from Methanosarcina barkeri...
August 16, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28745561/epidemiology-of-hip-flexor-and-hip-adductor-strains-in-national-collegiate-athletic-association-athletes-2009-2010-2014-2015
#17
Timothy G Eckard, Darin A Padua, Thomas P Dompier, Sara L Dalton, Kristian Thorborg, Zachary Y Kerr
BACKGROUND: Little research has examined the rates and patterns of hip flexor or hip adductor strains in student-athletes in the National Collegiate Athletic Association (NCAA). PURPOSE: To describe the epidemiology of hip flexor and adductor strains in NCAA athletes during the 2009/2010-2014/2015 academic years. STUDY DESIGN: Descriptive epidemiology study. METHODS: Rates and patterns of hip flexor and adductor strains in collegiate sports were examined in a convenience sample of NCAA varsity teams from 25 sports...
July 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28739836/psychological-impact-of-electrocardiogram-screening-in-national-collegiate-athletic-association-athletes
#18
Irfan M Asif, Scott Annett, Joseph A Ewing, Ramy Abdelfattah, Brittan Sutphin, Kyle Conley, Justin Rothmier, Kimberly G Harmon, Jonathan A Drezner
PURPOSE: Determine the psychological impact of false-positive ECG screening in National Collegiate Athletic Association (NCAA) athletes. METHODS: Athletes representing seven NCAA institutions received a standardised history, physical examination and ECG interpreted using the 2013 Seattle Criteria. Assessments of health attitudes, anxiety and impact of screening on sport were conducted using validated prescreen and postscreen measurements. RESULTS: 1192 student-athletes participated (55...
July 24, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28723820/the-effects-of-cardiovascular-fitness-and-body-composition-on-maximal-core-temperature-in-collegiate-football-players-during-pre-season
#19
JoAnna M McClelland, Sandra Fowkes Godek, Pamela S Chlad, Deborah L Feairheller, Katherine E Morrison
This study evaluated the effects of BMI and aerobic fitness (VO2max) on maximal core temperature values (Tcmax) in 17 NCAA Division III football players during pre-season. The subjects included nine backs (BKs) and eight linemen (LM). VO2max testing was performed one week prior to pre-season. Core temperature was monitored via ingestible sensor every 10 min during practices on day 4(D1), day 5(D2), day 7(D3), and post-acclimatization on day 14(D4). Wet bulb globe temperature (WBGT) was recorded on each collection day...
July 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28723815/effect-of-energy-drink-consumption-on-power-and-velocity-of-selected-sport-performance-activities
#20
Bert H Jacobson, Garrett M Hester, Ty B Palmer, Kathryn Williams, Zachary K Pope, John H Sellers, Eric C Conchola, Conrad Woolsey, Carlos Estrada
Energy drinks comprise a multibillion dollar market focused on younger, active and competitive individuals. Marketing includes claims of improved alertness and performance. The purpose of this study was to assess power (W) and velocity (m·s) of a simulated, isolated forehand stroke (FHS) and a counter movement vertical jump (CVJ) before and after ingestion of a commercially available energy shot (ES) or a placebo (PL). Healthy college-aged male and female (N=36) volunteers were randomly placed in the ES or PL...
July 17, 2017: Journal of Strength and Conditioning Research
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