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https://www.readbyqxmd.com/read/29045058/loop-mediated-isothermal-amplification-lamp-as-an-alternative-to-pcr-a-rapid-on-site-detection-of-gene-doping
#1
Olivier Salamin, Tiia Kuuranne, Martial Saugy, Nicolas Leuenberger
Innovation in medical research has been diverted at multiple occasions to enhance human performance. The predicted great progress in gene therapy has raised some concerns regarding its misuse in the world of sports (gene doping) for several years now. Even though there is no evidence that gene doping has ever been used in sports, the continuous improvement of gene therapy techniques increases the likelihood of abuse. Therefore, since 2004, efforts have been invested by the anti-doping community and WADA for the development of detection methods...
October 17, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/29044223/modulating-hemispheric-lateralization-by-brain-stimulation-yields-gain-in-mental-and-physical-activity
#2
Catharina Zich, Siobhán Harty, Cornelia Kranczioch, Karen L Mansfield, Francesco Sella, Stefan Debener, Roi Cohen Kadosh
Imagery plays an important role in our life. Motor imagery is the mental simulation of a motor act without overt motor output. Previous studies have documented the effect of motor imagery practice. However, its translational potential for patients as well as for athletes, musicians and other groups, depends largely on the transfer from mental practice to overt physical performance. We used bilateral transcranial direct current stimulation (tDCS) over sensorimotor areas to modulate neural lateralization patterns induced by unilateral mental motor imagery and the performance of a physical motor task...
October 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29043566/clinical-evaluation-and-physical-exam-findings-in-patients-with-anterior-shoulder-instability
#3
REVIEW
Vincent A Lizzio, Fabien Meta, Mohsin Fidai, Eric C Makhni
PURPOSE OF REVIEW: The goal of this paper is to provide an overview in evaluating the patient with suspected or known anteroinferior glenohumeral instability. RECENT FINDINGS: There is a high rate of recurrent subluxations or dislocations in young patients with history of anterior shoulder dislocation, and recurrent instability will increase likelihood of further damage to the glenohumeral joint. Proper identification and treatment of anterior shoulder instability can dramatically reduce the rate of recurrent dislocation and prevent subsequent complications...
October 17, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29039763/design-of-a-wireless-sensor-system-with-the-algorithms-of-heart-rate-and-agility-index-for-athlete-evaluation
#4
Meina Li, Youn Tae Kim
Athlete evaluation systems can effectively monitor daily training and boost performance to reduce injuries. Conventional heart-rate measurement systems can be easily affected by artifact movement, especially in the case of athletes. Significant noise can be generated owing to high-intensity activities. To improve the comfort for athletes and the accuracy of monitoring, we have proposed to combine robust heart rate and agility index monitoring algorithms into a small, light, and single node. A band-pass-filter-based R-wave detection algorithm was developed...
October 17, 2017: Sensors
https://www.readbyqxmd.com/read/29037636/effects-of-kinesio-taping-%C3%A2-on-knee-function-and-pain-in-athletes-with-patellofemoral-pain-syndrome
#5
Elaheh Aghapour, Fahimeh Kamali, Ehsan Sinaei
OBJECTIVE: To compare the knee performance and pain in athletes with patellofemoral pain syndrome (PFPS) before and after applying Kinesio Tape(®) (KT) on vastus medialis obliquus (VMO) muscle. PARTICIPANTS: Fifteen participants (10 females, five males) with unilateral PFPS were examined and compared under taped and untaped conditions. INTERVENTION: VMO of the involved leg was taped from origin to insertion, with 75% of KT's maximal length tension...
October 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29037635/the-immediate-effect-of-talocrural-joint-manipulation-on-functional-performance-of-15-40-years-old-athletes-with-chronic-ankle-instability-a-double-blind-randomized-clinical-trial
#6
Fahimeh Kamali, Ehsan Sinaei, Sara Bahadorian
OBJECTIVE: To evaluate the immediate effect of talocrural joint manipulation (TCJM) on functional performance of athletes with chronic ankle instability (CAI). PARTICIPANTS: Forty athletes (18males, 22females) with CAI divided into TCJM group (n = 20) and sham manipulation group (n = 20). INTERVENTION: TCJM was performed as a quick thrust on the involved talus, in the posterior direction. Sham manipulation was maintaining the same position, without any thrust...
October 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29037617/the-effects-of-preventive-rubber-band-training-on-shoulder-joint-imbalance-and-throwing-performance-in-handball-players-a-randomized-and-prospective-study
#7
Naryana Cristina Mascarin, Claudio Andre Barbosa de Lira, Rodrigo Luiz Vancini, Antonio Carlos da Silva, Marilia Santos Andrade
OBJECTIVES: To investigate the effects of a strength training program (STP) using rubber band exercises. METHODS: Twenty-five athletes were divided into two groups: muscular imbalance in the dominant (D) and in the non-dominant (ND) upper limbs. Each group was subdivided into experimental and control groups. Experimental groups performed eighteen sessions of STP. Athletes were submitted to ball throwing and isokinetic strength tests to assess the muscular strength of the shoulder rotator muscles and conventional and functional balance ratios...
October 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29037118/pre-season-dietary-intake-of-professional-soccer-players
#8
Raquel Raizel, Allan da Mata Godois, Audrey Yule Coqueiro, Fabrício Azevedo Voltarelli, Carlos Alexandre Fett, Julio Tirapegui, Fabricio Cesar de Paula Ravagnani, Christianne de Faria Coelho-Ravagnani
BACKGROUND: Despite the well-documented importance of nutrition in optimizing performance and health, the dietary intake of soccer players has attracted little attention. AIM: We aimed to assess the pre-season dietary intake of professional soccer players and its adequacy in macro and micronutrients. METHODS: The pre-season dietary intake of 19 male athletes was assessed using a semi-structured 3-day food record. To determine dietary adequacy and excess, energy and macronutrient intake were compared with the Brazilian dietary reference values for athletes, and micronutrients were compared with the Estimated Average Requirement - EAR (minimum recommendation) and Tolerable Upper Intake Level - UL (maximum recommendation)...
January 1, 2017: Nutrition and Health
https://www.readbyqxmd.com/read/29035985/qt-corrections-for-long-qt-risk-assessment-implications-for-the-preparticipation-examination
#9
David Hadley, David Hsu, David Pickham, Jonathan A Drezner, Victor F Froelicher
BACKGROUND: Because sudden cardiac death (SCD) in the young mainly occur in individuals with structurally normal hearts, improved screening techniques for detecting inherited arrhythmic diseases are needed. The QT interval is an important screening measurement; however, the criteria for detecting an abnormal QT interval are based on Bazett formula and older populations. OBJECTIVE: To define the normal upper limits for QT interval from the electrocardiograms (ECGs) of healthy young individuals, compare the major correction formula and propose new QT interval thresholds for detecting those at risk of SCD...
October 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29035981/clinical-utility-of-oculomotor-and-electrophysiological-measures-in-identifying-concussion-history
#10
Patrick S Ledwidge, Jessie N Patterson, Dennis L Molfese, Julie A Honaker
OBJECTIVE: To examine whether oculomotor and electrophysiological measures improve the clinical performance of the typical concussion protocol for classifying collegiate athletes with a history of concussion. DESIGN: Cross-sectional. SETTING: University Athletic Medicine and Research Facility. PARTICIPANTS: Forty-five varsity collegiate athletes. INDEPENDENT VARIABLES: Collegiate varsity athletes with or without a history of a diagnosed concussion...
October 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29035615/improving-mobility-performance-in-wheelchair-basketball
#11
Thom T J Veeger, Annemarie M H De Witte, Monique A M Berger, Rienk M A Van Der Slikke, Dirkjan H E J Veeger, Marco J M Hoozemans
OBJECTIVE: This study aimed to investigate which characteristics of athlete, wheelchair and athlete-wheelchair interface are the best predictors of wheelchair basketball mobility performance. DESIGN: Sixty experienced wheelchair basketball players performed a wheelchair mobility performance test to assess their mobility performance. To determine which variables were the best predictors of mobility performance, forward stepwise linear regression analyses were performed on a set of 33 characteristics, including ten athlete, nineteen wheelchair and four athlete-wheelchair interface characteristics...
October 16, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29035607/accuracy-of-w-recovery-kinetics-in-high-performance-cyclists-modelling-intermittent-work-capacity
#12
Jason C Bartram, Dominic Thewlis, David T Martin, Kevin I Norton
PURPOSE: With knowledge of an individual's critical power (CP) and W' the SKIBA 2 model provides a framework with which to track W' balance during intermittent high intensity work bouts. There are fears the time constant controlling the recovery rate of W' (τW') may require refinement to enable effective use in an elite population. METHODS: Four elite endurance cyclists completed an array of intermittent exercise protocols to volitional exhaustion. Each protocol lasted approximately 3...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29035603/competition-level-not-associated-with-diet-quality-in-marching-artists
#13
Colleen R McConnell, Alyssa McPherson, Kathleen Woolf
Marching artists are a unique group of athletes whose performance can be influenced by nutrition. Because physical demands are thought to be moderate to high, adequate energy and a variety of nutrient-dense foods are needed. The purpose of this study was to examine diet quality, physical activity, and eating behavior of marching artists across elite and non-elite competition levels. This cross-sectional analysis used the validated National Cancer Institute Diet History Questionnaire II, International Physical Activity Questionnaire, and Eating Behavior Patterns Questionnaire...
October 16, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29035596/the-elevated-track-in-pole-vault-an-advantage-during-run-up
#14
Johan Cassirame, Hervé Sanchez, Jean Benoit Morin
Approach speed is a major determinant of pole-vault performance. Athletic jump events such as long jump, triple jump and pole vault can utilise an elevated track for the runway. Feedback from athletes indicates a benefit of using an elevated track on their results. However, there is no evidence that elevated tracks do increase athletes' performance. PURPOSE: The aim of this study is to investigate the potential advantage of using an elevated track during elite pole-vault competitions on run-up speed parameters...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29035595/the-influence-of-physical-qualities-on-activity-profiles-of-female-australian-football-match-play
#15
Georgia M Black, Tim J Gabbett, Rich D Johnston, Michael H Cole, Geraldine Naughton, Brian Dawson
PURPOSE: The rapid transition of female Australian football players from amateur to semi-elite competitions has the potential for athletes to be underprepared for match-play. To gain an understanding the match demands of female football, the aims of this study were three-fold: (1) to highlight the physical qualities that discriminate selected and non-selected female Australian Football players, (2) to investigate activity profiles of female Australian Football players, and (3) to gain an understanding of the influence of physical qualities on running performance in female Australian Football match-play...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29035592/returners-exhibit-greater-jumping-performance-improvements-during-a-peaking-phase-compared-to-new-players-on-a-volleyball-team
#16
Caleb D Bazyler, Satoshi Mizuguchi, Ashley A Kavanaugh, John J McMahon, Paul Comfort, Michael H Stone
PURPOSE: To determine if jumping performance changes during a peaking phase differed between returners and new players in a female collegiate volleyball team and to determine which variables best explained the variation in performance changes. METHODS: Fourteen volleyball players were divided into two groups: returners (n=7) and new players (n=7) who completed a 5-week peaking phase prior to conference championships. Players were tested at baseline prior to the pre-season on measures of vastus lateralis cross-sectional area using ultrasonography, estimated back squat one repetition maximum (1-RM), and countermovement jump height (JH) and relative peak power (PPa) on a force platform...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29035590/the-impact-of-different-competitive-environments-on-pacing-and-performance
#17
Marco J Konings, Florentina J Hettinga
PURPOSE: In real-life competitive situations, athletes are required to continuously make decisions about how and when to invest their available energy resources. This study attempted to identify how different competitive environments invite elite short-track speed skaters to modify their pacing behaviour during head-to-head competition. METHODS: Lap times of elite 500, 1000 and 1500 m short-track speed skating competitions between 2011-2016 (n=34095 races) were collected...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29035582/video-feedback-and-2-dimensional-landing-kinematics-in-elite-female-handball-players
#18
Anne Benjaminse, Wytze Postma, Ina Janssen, Egbert Otten
CONTEXT: In team handball, an anterior cruciate ligament injury often occurs during landing after a jump shot. Many intervention programs try to reduce the injury rate by instructing athletes to land more safely. Video is an effective way to provide feedback, but little is known about its influence on landing technique in sport-specific situations. OBJECTIVE: To test the effectiveness of a video-overlay feedback method on landing technique in elite handball players...
October 16, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/29034991/concept-analysis-role-ambiguity-in-senior-nursing-students
#19
Beth Kalkman
Role ambiguity is a lack of clarity or uncertainty related to one's position or role. Role ambiguity has been documented in the literature in relationship to athletics, industry, business, education, and nursing. However, a concept analysis has not been performed. Therefore, the process of concept analysis outlined by Walker and Avant is now used to look at the concept of role ambiguity and its relevance to senior nursing students' socialization and education into the profession of nursing. Attributes, antecedents, consequences, and empiric referents are discussed and theories commonly associated with role ambiguity are presented...
October 16, 2017: Nursing Forum
https://www.readbyqxmd.com/read/29033847/a-monetary-reward-alters-pacing-but-not-performance-in-competitive-cyclists
#20
Sabrina Skorski, Kevin G Thompson, Richard J Keegan, Tim Meyer, Chris R Abbiss
Money has frequently been used as an extrinsic motivator since it is assumed that humans are willing to invest more effort for financial reward. However, the influence of a monetary reward on pacing and performance in trained athletes is not well-understood. Therefore, the aim of this study was to analyse the influence of a monetary reward in well-trained cyclists on their pacing and performance during short and long cycling time trials (TT). Twentythree cyclists (6 ♀, 17 ♂) completed 4 self-paced time trials (TTs, 2 short: 4 km and 6 min; 2 long: 20 km and 30 min); in a randomized order...
2017: Frontiers in Physiology
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