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https://www.readbyqxmd.com/read/29102301/y-balance-test-performance-and-bmi-are-associated-with-ankle-sprain-injury-in-collegiate-male-athletes
#1
Emily M Hartley, Matthew C Hoch, Michelle C Boling
OBJECTIVES: To determine if static balance, dynamic balance, ankle range of motion, body mass index (BMI), or history of an ankle sprain were associated with ankle sprain injuries within male and female collegiate athletes. DESIGN: Prospective cohort. METHODS: Three hundred and eighty-four male (age=19.79±1.80 years, height=178.02±10.39cm, mass=85.71±17.59kg) and one hundred and sixty seven female (age=19.80±1.52 years, height=165.61±7...
October 25, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29075322/pulse-electromagnetic-fields-enhance-extracellular-electron-transfer-in-magnetic-bioelectrochemical-systems
#2
Huihui Zhou, Bingfeng Liu, Qisong Wang, Jianmin Sun, Guojun Xie, Nanqi Ren, Zhiyong Jason Ren, Defeng Xing
BACKGROUND: Microbial extracellular electron transfer (EET) is essential in driving the microbial interspecies interaction and redox reactions in bioelectrochemical systems (BESs). Magnetite (Fe3O4) and magnetic fields (MFs) were recently reported to promote microbial EET, but the mechanisms of MFs stimulation of EET and current generation in BESs are not known. This study investigates the behavior of current generation and EET in a state-of-the-art pulse electromagnetic field (PEMF)-assisted magnetic BES (PEMF-MBES), which was equipped with magnetic carbon particle (Fe3O4@N-mC)-coated electrodes...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28843846/sport-concussion-assessment-tool-third-edition-normative-reference-values-for-professional-rugby-union-players
#3
G W Fuller, O Govind, R Tucker, M Raftery
OBJECTIVES: To establish normative reference data for the SCAT3 in professional Rugby Union players. DESIGN: A cross sectional study in professional Rugby Union players competing in national and international professional competitions between 2015 and 2016. METHODS: The SCAT3 was administered pre-season or prior to tournaments. Data was collected electronically using a custom tablet application. SCAT3 subcomponents distributions were described and normative ranges determined using percentile cut-offs for average, unusually low/high, and extremely low/high scores...
August 2, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28540448/sensor-based-balance-measures-outperform-modified-balance-error-scoring-system-in-identifying-acute-concussion
#4
Laurie A King, Martina Mancini, Peter C Fino, James Chesnutt, Clayton W Swanson, Sheila Markwardt, Julie C Chapman
Balance assessment is an integral component of concussion evaluation and management. Although the modified balance error scoring system (mBESS) is the conventional clinical tool, objective metrics derived from wearable inertial sensors during the mBESS may increase sensitivity in detecting subtle balance deficits post-concussion. The aim of this study was to identify which stance condition and postural sway metrics obtained from an inertial sensor placed on the lumbar spine during the mBESS best discriminate athletes with acute concussion...
May 24, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28501805/neurological-tests-improve-after-olympic-style-boxing-bouts-a-pretournament-and-post-tournament-study-in-the-2016-women-s-world-boxing-championships
#5
David R Howell, William P Meehan, Michael P Loosemore, Joseph Cummiskey, Jean-Paul Grabner von Rosenberg, David McDonagh
AIM: To prospectively examine the neurocognitive, postural, dual-task and visual abilities of female Olympic-style boxers before and after participation in a tournament. METHODS: Sixty-one females completed the modified Balance Error Scoring System (mBESS), King-Devick test and 3 m timed-up-and-go test in single-task and dual-task conditions. A subset (n=31) completed the CogState computerised neurocognitive test. Initial testing was completed prior to the 2016 Women's World Boxing Championships; each participant repeated the testing protocol within a day of elimination...
September 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28492862/establishing-baseline-normative-values-for-the-child-sport-concussion-assessment-tool
#6
M Alison Brooks, Traci R Snedden, Benjamin Mixis, Scott Hetzel, Timothy A McGuine
Importance: The Child Sport Concussion Assessment Tool (SCAT3) is a postconcussion sideline assessment tool measuring symptoms, cognition, and balance in preadolescent children. Minimal normative baseline data exist to aid decision making in clinical and athletic settings. Objective: To collect normative baseline data for the Child SCAT3 in a large cohort of young athletes. Design, Setting, and Participants: A cross-sectional study was conducted from May 31 to August 12, 2014, at various sporting events (basketball, soccer, baseball, and swimming) in Central Wisconsin among children 5 to 13 years of age who were English-speaking and did not report a lower leg injury within the past 2 months or a concussion within the past month...
July 1, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28454123/sensitivity-and-specificity-of-the-modified-balance-error-scoring-system-in-concussed-collegiate-student-athletes
#7
Thomas A Buckley, Barry A Munkasy, Brandy P Clouse
OBJECTIVE: To assess the efficacy of the modified Balance Error Scoring System (mBESS) compared with the Balance Error Scoring System (BESS) in an acutely concussed population. DESIGN: Prospective observational study. SETTING: University athletic training room. PATIENTS: Thirty-five collegiate student-athletes (18 Female, 18.9 ± 0.8 year old, height: 1.71 ± 0.12 m, weight: 76.3 ± 24.1 kg) with diagnosed concussions and baseline BESS/mBESS tests...
April 27, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28341642/feasibility-and-accuracy-of-teleconcussion-for-acute-evaluation-of-suspected-concussion
#8
Bert B Vargas, Morgan Shepard, Joseph G Hentz, Cherisse Kutyreff, L George Hershey, Amaal J Starling
OBJECTIVE: To assess the feasibility and accuracy of telemedical concussion evaluations (teleconcussion) for real-time athletic sideline assessment of concussion, as such assessment may address the gap in access some populations of athletes have to providers with expertise in concussion evaluation. METHODS: A cohort of 11 consecutive male collegiate football players with suspected concussion was assessed using Standardized Assessment of Concussion (SAC), King-Devick test (K-D), and modified Balance Error Scoring System (mBESS)...
April 18, 2017: Neurology
https://www.readbyqxmd.com/read/27712116/estimation-of-the-coefficient-of-variation-with-minimum-risk-a-sequential-method-for-minimizing-sampling-error-and-study-cost
#9
Bhargab Chattopadhyay, Ken Kelley
The coefficient of variation is an effect size measure with many potential uses in psychology and related disciplines. We propose a general theory for a sequential estimation of the population coefficient of variation that considers both the sampling error and the study cost, importantly without specific distributional assumptions. Fixed sample size planning methods, commonly used in psychology and related fields, cannot simultaneously minimize both the sampling error and the study cost. The sequential procedure we develop is the first sequential sampling procedure developed for estimating the coefficient of variation...
September 2016: Multivariate Behavioral Research
https://www.readbyqxmd.com/read/27428682/baseline-performance-and-psychometric-properties-of-the-child-sport-concussion-assessment-tool-3-child-scat3-in-5-to-13-year-old-athletes
#10
Lindsay D Nelson, Michelle M Loman, Ashley A LaRoche, Robyn E Furger, Michael A McCrea
OBJECTIVE: To determine the normative, baseline performance and psychometric properties of the Child Sport Concussion Assessment Tool 3 (Child-SCAT3) in 5- to 13-year-old athletes. DESIGN: Cross-sectional study. SETTING: Practice fields. PARTICIPANTS: Contact sport athletes (N = 155) 5 to 13 years old. INDEPENDENT VARIABLES: Age, gender, verbal intellectual functioning (receptive vocabulary). MAIN OUTCOME MEASURES: Child-SCAT3: self-reported and parent-reported symptoms, cognitive performance (child form of the Standardized Assessment of Concussion; SAC-C), and balance (modified Balance Error Scoring System, mBESS-C; tandem gait)...
July 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27428677/assessment-of-the-postural-stability-of-female-and-male-athletes
#11
David R Howell, Emily Hanson, Dai Sugimoto, Andrea Stracciolini, William P Meehan
OBJECTIVE: Postural stability is often affected by sport-related injuries and subsequently evaluated during postinjury examinations. Intrinsic factors, however, may also affect postural control. We sought to compare the postural control of female and male athletes as measured simultaneously by (1) the modified balance error scoring system (mBESS) and (2) a video-force plate system. DESIGN: Cross-sectional study. SETTING: Sports injury prevention center...
September 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/27266445/evaluation-of-postural-stability-in-youth-athletes-the-relationship-between-two-rating-systems
#12
David R Howell, Benjamin J Shore, Emily Hanson, William P Meehan
OBJECTIVES: The Balance Error Scoring System (BESS) has been documented as a useful way to evaluate postural control following sport-related concussions sustained by youth athletes. However, limitations have been reported with its use due to the reliance on visual observation as the primary measurement outcome. The primary purpose of this study was to examine the correlation between the modified BESS (mBESS) as rated by a clinician and a simultaneous analysis performed by an integrated video-force plate system...
September 2016: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/27032923/the-sport-concussion-assessment-tool-a-systematic-review
#13
REVIEW
Aaron M Yengo-Kahn, Andrew T Hale, Brian H Zalneraitis, Scott L Zuckerman, Allen K Sills, Gary S Solomon
OBJECTIVE Over the last 2 decades, sport-related concussion (SRC) has garnered significant attention. Even with increased awareness and athlete education, sideline recognition and real-time diagnosis remain crucial. The need for an objective and standardized assessment of concussion led to the eventual development of the Sport Concussion Assessment Tool (SCAT) during the Second International Conference on Concussion in Sport in 2004, which is now in its third iteration (SCAT3). In an effort to update our understanding of the most well-known sideline concussion assessment, the authors conducted a systematic review of the SCAT and the evidence supporting its use to date...
April 2016: Neurosurgical Focus
https://www.readbyqxmd.com/read/26962759/confidence-intervals-for-population-reliability-coefficients-evaluation-of-methods-recommendations-and-software-for-composite-measures
#14
Ken Kelley, Sunthud Pornprasertmanit
A composite score is the sum of a set of components. For example, a total test score can be defined as the sum of the individual items. The reliability of composite scores is of interest in a wide variety of contexts due to their widespread use and applicability to many disciplines. The psychometric literature has devoted considerable time to discussing how to best estimate the population reliability value. However, all point estimates of a reliability coefficient fail to convey the uncertainty associated with the estimate as it estimates the population value...
March 2016: Psychological Methods
https://www.readbyqxmd.com/read/26911999/examination-of-age-related-differences-on-clinical-tests-of-postural-stability
#15
Erin O Breen, David R Howell, Andrea Stracciolini, Corey Dawkins, William P Meehan
BACKGROUND: The modified Balance Error Scoring System (mBESS) and Y-Balance Test are common clinical measurements of postural control, but little is known about the effect of age on performance of these tasks. The purpose of this study was to examine how healthy child and adolescent athletes perform on 2 common clinical measurements of postural control. HYPOTHESIS: Younger athletes would demonstrate poorer postural control compared with older athletes. STUDY DESIGN: Cross-sectional study...
May 2016: Sports Health
https://www.readbyqxmd.com/read/26885560/vestibular-dysfunction-after-subconcussive-head-impact
#16
Sungjae Hwang, Lei Ma, Keisuke Kawata, Ryan Tierney, John J Jeka
Current thinking views mild head impact (i.e., subconcussion) as an underrecognized phenomenon that has the ability to cause significant current and future detrimental neurological effects. Repeated mild impacts to the head, however, often display no observable behavioral deficits based on standard clinical tests, which may lack sensitivity. The current study investigates the effects of subconcussive impacts from soccer heading with innovative measures of vestibular function and walking stability in a pre- 0-2 h, post- 24 h post-heading repeated measures design...
January 1, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/26863482/normative-values-for-a-video-force-plate-assessment-of-postural-control-in-athletic-children
#17
David R Howell, William P Meehan
The objective of this study was to provide normative data for young athletes during the three stances of the modified Balance Error Scoring System (mBESS) using an objective video-force plate system. Postural control was measured in 398 athletes between 8 and 18 years of age during the three stances of the mBESS using a video-force plate rating system. Girls exhibited better postural control than boys during each stance of the mBESS. Age was not significantly associated with postural control. We provide normative data for a video-force plate assessment of postural stability in pediatric athletes during the three stances of the mBESS...
July 2016: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/26771426/sample-size-planning-for-the-squared-multiple-correlation-coefficient-accuracy-in-parameter-estimation-via-narrow-confidence-intervals
#18
Ken Kelley
Methods of sample size planning are developed from the accuracy in parameter approach in the multiple regression context in order to obtain a sufficiently narrow confidence interval for the population squared multiple correlation coefficient when regressors are random. Approximate and exact methods are developed that provide necessary sample size so that the expected width of the confidence interval will be sufficiently narrow. Modifications of these methods are then developed so that necessary sample size will lead to sufficiently narrow confidence intervals with no less than some desired degree of assurance...
October 2008: Multivariate Behavioral Research
https://www.readbyqxmd.com/read/25159392/excitation-emission-matrix-fluorescence-coupled-to-chemometrics-for-the-exploration-of-essential-oils
#19
William Mbogning Feudjio, Hassen Ghalila, Mama Nsangou, Yvon G Mbesse Kongbonga, Youssef Majdi
Excitation-emission matrix fluorescence (EEMF) coupled to chemometrics was used to explore essential oils (EOs). The spectrofluorometer was designed with basic and inexpensive materials and was accompanied by appropriate tools for data pre-treatment. Excitation wavelengths varied between 320 nm and 600 nm while emission wavelengths were from 340 nm to 700 nm. Excitation-emission matrix (EEM) spectra of EOs presented different features, revealing the presence of varying fluorophores. EOs from the same species but from different origins presented almost the same spectra, showing the possibility that EEM spectra could be used as additional parameters in the standardisation of EOs...
December 2014: Talanta
https://www.readbyqxmd.com/read/24206726/classification-of-vegetable-oils-based-on-their-concentration-of-saturated-fatty-acids-using-laser-induced-breakdown-spectroscopy-libs
#20
Yvon G Mbesse Kongbonga, Hassen Ghalila, Marthe Boyomo Onana, Zohra Ben Lakhdar
Spectrochemical analyses of organic liquid media such as vegetable oils and sweetened water were performed with the use of LIBS. The aim of this work is to study, on the basis of spectral analyses by LIBS technique of "Swan band" of C2 emitted by different vegetable oils in liquid phase, the characteristics of each organic media. Furthermore this paper proposes, as a classification, a single parameter that could be used to determine the concentration of saturated fatty acids of vegetable oils. A Nd:YAG operating at λ=532 nm and an energies per pulse of 30 mJ was focused onto the surface of the liquid in ambient air...
March 15, 2014: Food Chemistry
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