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https://www.readbyqxmd.com/read/29898372/forearm-flexor-injuries-among-major-league-baseball-players-epidemiology-performance-and-associated-injuries
#1
Justin L Hodgins, David P Trofa, Steve Donohue, Mark Littlefield, Michael Schuk, Christopher S Ahmad
BACKGROUND: Despite evidence highlighting the importance of the forearm flexor muscles of elite baseball players, no studies have reported on the epidemiology of flexor strains and their associated outcomes. PURPOSE: To examine the incidence, associated injuries, and outcomes associated with forearm flexor injuries among major and minor league baseball players. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Injury data attributed to forearm flexor injuries among Major League Baseball (MLB) and minor league teams between 2010 and 2014 were obtained from the professional baseball Health and Injury Tracking System...
June 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29891905/heterogeneity-of-interactions-of-microbial-communities-in-regions-of-taihu-lake-with-different-nutrient-loadings-a-network-analysis
#2
Xinyi Cao, Dayong Zhao, Huimin Xu, Rui Huang, Jin Zeng, Zhongbo Yu
To investigate the differences in the interactions of microbial communities in two regions in Taihu Lake with different nutrient loadings [Meiliang Bay (MLB) and Xukou Bay (XKB)], water samples were collected and both intra- and inter-kingdom microbial community interactions were examined with network analysis. It is demonstrated that all of the bacterioplankton, microeukaryotes and inter-kingdom communities networks in Taihu Lake were non-random. For the networks of bacterioplankton and inter-kingdom community in XKB, higher clustering coefficient and average degree but lower average path length indexes were observed, indicating the nodes in XKB were more clustered and closely connected with plenty edges than those of MLB...
June 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29861301/how-many-innings-can-we-throw-does-workload-influence-injury-risk-in-major-league-baseball-an-analysis-of-professional-starting-pitchers-between-2010-and-2015
#3
Brian M Saltzman, Benjamin C Mayo, John D Higgins, Anirudh K Gowd, Brandon C Cabarcas, Timothy S Leroux, Bryce A Basques, Gregory P Nicholson, Charles A Bush-Joseph, Anthony A Romeo, Nikhil N Verma
BACKGROUND: There has been increasing interest regarding the association between pitch counts, as well as total workload per season, and the risk of injury among Major League Baseball (MLB) starting pitchers. METHODS: We used publicly available databases to identify all MLB starting pitchers eligible for play who made at least 5 starts in seasons between 2010 and 2015. For all included pitchers, annual pitching statistics (number of starts, total season pitch counts, total season inning counts, and average pitch count per game started) and annual disabled list (DL) information (time on DL for any reason and time on DL related to upper extremity, lower extremity, or axial body injury) were collected...
May 31, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29847137/the-structure-of-lung-mimetic-multilamellar-bodies-with-lipid-compositions-relevant-in-pneumonia
#4
Dylan Steer, Sherry Leung, Hannah Meiselman, Daniel Topgaard, Cecilia Leal
The hierarchical assembly of lipids, as modulated by composition and environment, plays a significant role in the function of biological membranes and a myriad of diseases. Elevated concentrations of calcium ions and cardiolipin, an anionic tetra-alkyl lipid found in mitochondria and some bacterial cell membranes, have been implicated in pneumonia recently. However, their impact on the physicochemical properties of lipid assemblies in lungs and how it impairs alveoli function is still unknown. We use Small- and Wide- Angle X-ray Scattering (S/WAXS) and Solid-State Nuclear Magnetic Resonance (ssNMR) to probe the structure and dynamics of lung-mimetic multilamellar bodies (MLBs) in the presence of Ca2+ and cardiolipin...
May 30, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29799269/career-length-and-performance-among-professional-baseball-players-returning-to-play-after-hip-arthroscopy
#5
Salvatore J Frangiamore, Sandeep Mannava, Karen K Briggs, Shannen McNamara, Marc J Philippon
BACKGROUND: Hip arthroscopy has been shown to be effective for management of symptomatic femoroacetabular impingement (FAI) in professional athletes; however, it is unclear how hip arthroscopy affects career length and performance when professional baseball players return to play. PURPOSE: To determine the career length, performance, and return-to-play rates of professional baseball players after undergoing arthroscopy for symptomatic FAI. STUDY DESIGN: Case series; Level of evidence, 4...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29792776/prevalence-of-inadequate-immunity-to-measles-mumps-rubella-and-varicella-in-mlb-and-nba-athletes
#6
Justin J Conway, Brett G Toresdahl, Daphne I Ling, Nicole T Boniquit, Lisa R Callahan, James J Kinderknecht
BACKGROUND: Multiple outbreaks of vaccine-preventable viral diseases have occurred in professional sports in recent years. Currently, there is no established protocol for vaccination or immunity screening for professional athletes. HYPOTHESIS: There are significant differences in the prevalence of inadequate immunity dependent on age, sport, country of birth, and participation in collegiate sports. STUDY DESIGN: Cross-sectional cohort study...
May 1, 2018: Sports Health
https://www.readbyqxmd.com/read/29768041/getting-hit-by-pitch-in-professional-baseball-analysis-of-injury-patterns-risk-factors-concussions-and-days-missed-for-batters
#7
Christopher L Camp, Dean Wang, Alec S Sinatro, John D'Angelo, Struan H Coleman, Joshua S Dines, Stephen Fealy, Stan Conte
BACKGROUND: Although batters are frequently hit by pitch (HBP) in baseball, the effect of HBP injuries remains undefined in the literature. PURPOSE: To determine the effect of HBP injuries in terms of time out of play, injury patterns resulting in the greatest time out of play, and the value of protective gear such as helmets and elbow pads. STUDY DESIGN: Descriptive laboratory study. METHODS: Based on the Major League Baseball (MLB) Health and Injury Tracking System, all injuries to batters HBP during the 2011-2015 MLB and Minor League Baseball (MiLB) seasons were identified and analyzed...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29768026/return-to-play-and-performance-outcomes-of-professional-athletes-in-north-america-after-hip-arthroscopy-from-1999-to-2016
#8
Michael S Schallmo, Thomas H Fitzpatrick, Hunter B Yancey, Alejandro Marquez-Lara, T David Luo, Allston J Stubbs
BACKGROUND: The effect of hip arthroscopy on athletic performance compared with preinjury levels for professional athletes in different sports remains unknown. In addition, while return rates have been reported for professional baseball, football, and hockey players, return rates have not been reported for professional basketball players. HYPOTHESIS: Professional athletes in 4 major North American sports would be able to return to their sport and preoperative level of performance at a high rate after arthroscopic hip surgery...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29752207/a-cross-sport-comparison-of-performance-based-outcomes-of-professional-athletes-following-primary-microfracture-of-the-knee
#9
Michael S Schallmo, Sameer K Singh, Kathryn A Barth, Ryan D Freshman, Harry T Mai, Wellington K Hsu
BACKGROUND: The purpose of this study was to compare performance-based outcomes among professional athletes in four major North American sports following microfracture to treat symptomatic chondral defects of the knee. METHODS: Major League Baseball (MLB), National Basketball Association (NBA), National Football League (NFL), and National Hockey League (NHL) athletes who underwent primary unilateral microfracture of the knee were identified through a previously reported protocol based on public sources...
May 8, 2018: Knee
https://www.readbyqxmd.com/read/29732908/airway-anomalies-in-patients-with-22q11-2-deletion-syndrome-a-5-year-review
#10
Joel W Jones, Meghan Tracy, Mollie Perryman, Jill M Arganbright
OBJECTIVES: To characterize the frequency of airway anomalies in patients with 22q11.2 deletion syndrome (22q11DS). METHODS: Retrospective review of patients with 22q11DS who had undergone microlaryngoscopy/bronchoscopy (MLB) for aerodigestive symptoms at a tertiary care children's hospital from 2011 to 2016. RESULTS: Thirty patients underwent an MLB due to the following indications: aspiration (11), stridor (10), chronic respiratory failure due to ventilator dependence (8), and difficult intubation (1)...
May 1, 2018: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29718915/are-canadian-born-major-league-baseball-players-more-likely-to-bat-left-handed-a-partial-test-of-the-hockey-influence-on-batting-hypothesis
#11
John Cairney, Daniele Chirico, Yao-Chuen Li, Emily Bremer, Jeffrey D Graham
It has been suggested that Canadian-born Major League Baseball (MLB) players are more likely to bat left-handed, possibly owing to the fact that they learn to play ice hockey before baseball, and that there is no clear hand-preference when shooting with a hockey stick; approximately half of all ice hockey players shoot left. We constructed a database on active (i.e., October, 2016) MLB players from four countries/regions based on place of birth (Canada, United States of America [USA], Dominican Republic and South Asia [i...
2018: PloS One
https://www.readbyqxmd.com/read/29693581/a-low-ambiguity-signal-waveform-for-pseudolite-positioning-systems-based-on-chirp
#12
Qing Liu, Zhigang Huang, Yanhong Kou, Jinling Wang
Signal modulation is an essential design factor of a positioning system, which directly impacts the system’s potential performance. Chirp compressions have been widely applied in the fields of communication, radar, and indoor positioning owing to their high compression gain and good resistance to narrowband interferences and multipath fading. Based on linear chirp, we present a modulation method named chirped pseudo-noise (ChPN). The mathematical model of the ChPN signal is provided with its auto-correlation function (ACF) and the power spectrum density (PSD) derived...
April 25, 2018: Sensors
https://www.readbyqxmd.com/read/29680328/epidemiology-of-ulnar-collateral-ligament-reconstruction-in-major-and-minor-league-baseball-pitchers-comprehensive-report-of-1429-cases
#13
Christopher L Camp, Stan Conte, John D'Angelo, Stephen A Fealy
BACKGROUND: The primary purpose of this work is to provide an epidemiologic report on every known ulnar collateral ligament (UCL) reconstruction performed in professional baseball with a special focus on outcomes and survivorship. METHODS: Three resources, including the Major League Baseball (MLB) injury tracking system, were combined and cross-referenced to identify all known professional baseball pitchers who had ever undergone UCL reconstruction from 1974 to 2016...
May 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29629813/summative-report-on-time-out-of-play-for-major-and-minor-league-baseball-an-analysis-of-49-955-injuries-from-2011-through-2016
#14
Christopher L Camp, Joshua S Dines, Jelle P van der List, Stan Conte, Justin Conway, David W Altchek, Struan H Coleman, Andrew D Pearle
BACKGROUND: Recent epidemiologic reports have demonstrated rising injury rates in Major League Baseball (MLB) and Minor League Baseball (MiLB). Although several studies have recently been published on specific injuries, the majority of injuries have not yet been formally studied. PURPOSE: The purpose of this study is to (1) generate a summative analysis of all injuries that occur in MLB and MiLB, (2) identify the 50 most common injuries, and (3) generate focused reports and fact sheets on the characteristics of each of those diagnoses...
June 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29628818/efficacy-of-newer-molecules-bioagents-and-botanicals-against-maydis-leaf-blight-and-banded-leaf-and-sheath-blight-of-maize
#15
Vinod Kumar Malik, Manjeet Singh, Karambir Singh Hooda, Naresh Kumar Yadav, Prashant Kumar Chauhan
Maize ( Zea mays L.; 2N=20) is major staple food crop grown worldwide adapted to several biotic and abiotic stresses. Maydis leaf blight (MLB) and banded leaf and sheath blight (BLSB) are serious foliar fungal diseases may cause up to 40% and 100% grain yield loss, respectively. The present studies were undertaken to work out the efficacy of chemicals, botanicals and bioagents for the management of MLB and BLSB under field condition for two seasons Kharif 2014 and 2015. Five molecules (propiconazole 25 EC, hexaconazole 25 EC, carbendazim 50 WP, mancozeb 75 WP and carbedazim 12 WP + mancozeb 63 WP), two bioagents i...
April 2018: Plant Pathology Journal
https://www.readbyqxmd.com/read/29601208/performance-and-return-to-sport-after-tommy-john-surgery-among-major-league-baseball-position-players
#16
Robert A Jack, Matthew B Burn, Kyle R Sochacki, Patrick C McCulloch, David M Lintner, Joshua D Harris
BACKGROUND: The anterior bundle of the medial ulnar collateral ligament (UCL) is the primary restraint to valgus stress at the elbow and is often injured among overhead throwing athletes. Despite prevention strategies, injuries to the elbow UCL are on the rise. PURPOSE: To determine (1) the return-to-sport (RTS) rate of Major League Baseball (MLB) position players after elbow medial UCL reconstruction, (2) postoperative career length and games per season, (3) pre- and postoperative performance, (4) postoperative performance versus matched control players, and (5) whether position players changed positions after UCL reconstruction...
June 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29559548/are-the-surface-areas-of-the-gills-and-body-involved-with-changing-metabolic-scaling-with-temperature
#17
Ge Li, Xiao Lv, Jing Zhou, Cong Shen, Danyang Xia, Hang Xie, Yiping Luo
The metabolic-level boundaries (MLB) hypothesis proposes that metabolic level mediates the relative influence of surface area (SA)- versus volume-related metabolic processes on the body-mass scaling of metabolic rate in organisms. The variation in the scaling of SA may affect how metabolic level affects the metabolic scaling exponent. This study aimed to determine the influence of increasing metabolic level at a higher temperature on the metabolic scaling exponent of the goldfish and determine the link between metabolic scaling exponents and SA parameters of both gills and body...
April 20, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29543498/effect-of-predraft-ulnar-collateral-ligament-reconstruction-on-future-performance-in-professional-baseball-a-matched-cohort-comparison
#18
Christopher L Camp, Stan Conte, John D'Angelo, Stephen A Fealy, Christopher S Ahmad
BACKGROUND: In recent years, there has been a dramatic rise in the annual number of ulnar collateral ligament (UCL) reconstructions performed in amateur baseball pitchers. Accordingly, increasing numbers of players are entering professional baseball having already undergone the procedure; however, the effect of prior UCL reconstruction on future success remains unknown. PURPOSE: (1) To provide an epidemiologic report on baseball players who undergo UCL reconstruction before being selected in the Major League Baseball (MLB) Draft, (2) to define the outcomes in terms of statistical performance, and (3) to compare these results with those of matched controls (ie, non-UCL reconstruction)...
May 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29489442/the-long-shadow-of-rivalry-rivalry-motivates-performance-today-and-tomorrow
#19
Brian E Pike, Gavin J Kilduff, Adam D Galinsky
Research has established that competing head to head against a rival boosts motivation and performance. The present research investigated whether rivalry can affect performance over time and in contests without rivals. We examined the long-term effects of rivalry through archival analyses of postseason performance in multiple high-stakes sports contexts: National Collegiate Athletic Association (NCAA) Division I Men's Basketball and the major U.S. professional sports leagues: National Basketball Association (NBA), National Football League (NFL), Major League Baseball (MLB), and National Hockey League (NHL)...
May 2018: Psychological Science
https://www.readbyqxmd.com/read/29482860/performance-return-to-play-and-career-longevity-after-ulnar-collateral-ligament-reconstruction-in-professional-catchers
#20
Nathan E Marshall, Toufic R Jildeh, Kelechi R Okoroha, Fabien Meta, Vincent A Lizzio, Vasilios Moutzouros, Eric C Makhni
PURPOSE: The purpose of our study was to evaluate return to play and postinjury performance of professional catchers who sustained an ulnar collateral ligament (UCL) rupture requiring surgical reconstruction. We looked to evaluate these players to determine the rate of return to play, the level of return to play, and career longevity after surgery as well as how statistical performance is affected by reconstruction. METHODS: Twenty-five professional catchers who underwent UCL reconstruction between 1985 and 2015 were identified and compared with an age-, position-, and competition-matched control group...
February 23, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
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