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https://www.readbyqxmd.com/read/27903779/exercise-physiology-and-sports-science-must-be-considered-in-evolutionary-theories-regarding-human-performance-a-reply-to-postma-2016
#1
James M Smoliga, Gerald S Zavorsky
No abstract text is available yet for this article.
November 2016: Biology Letters
https://www.readbyqxmd.com/read/27900880/associations-of-nicotinamide-n-methyltransferase-gene-single-nucleotide-polymorphisms-with-sport-performance-and-relative-maximal-oxygen-uptake
#2
Jiang-Hua Li, Wei Chen, Xiao-Juan Zhu, Ya-Jun Lin, Li-Qiang Qiu, Can-Xin Cai, Ya-Hui Wang, Qun Xiong, Fei Chen, Li-Hui Chen
To observe the associations between single nucleotide polymorphisms (SNPs) of nicotinamide N-methyltransferase (NNMT) gene and sport performance and to analyse genotype associations of the associated SNPs with sport performance and relative maximal oxygen uptake ([Formula: see text]). Participants were selected from 685 Chinese Han male college students. The completion times of a 1000-m run and a 50-m run were used to reflect sport performance, respectively. Nineteen tagSNPs were genotyped with Polymerase chain reaction-ligase detection reaction...
November 30, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27900339/an-ecological-study-of-anterior-cruciate-ligament-reconstruction-part-1-clinical-tests-do-not-correlate-with-return-to-sport-outcomes
#3
Timothy M McGrath, Gordon Waddington, Jennie M Scarvell, Nick Ball, Rob Creer, Kevin Woods, Damian Smith, Roger Adams
BACKGROUND: Additional high-quality prospective studies are needed to better define the objective criteria used in relation to return-to-sport decisions after synthetic (ligament advanced reinforcement system [LARS]) and autograft (hamstring tendon [2ST/2GR]) anterior cruciate ligament (ACL) reconstruction in active populations. PURPOSE: To prospectively investigate and describe the recovery of objective clinical outcomes after autograft (2ST/2GR) and synthetic (LARS) ACL reconstructions, as well as to investigate the relationship between these clinimetric test outcomes and return-to-sport activity (Tegner activity scale [TAS] score) at 12 and 24 months postoperatively...
November 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27900193/exertional-rhabdomyolysis-physiological-response-or-manifestation-of-an-underlying-myopathy
#4
Renata S Scalco, Marc Snoeck, Ros Quinlivan, Susan Treves, Pascal Laforét, Heinz Jungbluth, Nicol C Voermans
Exertional rhabdomyolysis is characterised by muscle breakdown associated with strenuous exercise or normal exercise under extreme circumstances. Key features are severe muscle pain and sudden transient elevation of serum creatine kinase (CK) levels with or without associated myoglobinuria. Mild cases may remain unnoticed or undiagnosed. Exertional rhabdomyolysis is well described among athletes and military personnel, but may occur in anybody exposed to unaccustomed exercise. In contrast, exertional rhabdomyolysis may be the first manifestation of a genetic muscle disease that lowers the exercise threshold for developing muscle breakdown...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27900182/concussion-reporting-behaviours-of-community-college-student-athletes-and-limits-of-transferring-concussion-knowledge-during-the-stress-of-competition
#5
Nancy Resendes Chinn, Paul Porter
: Concussion education for student-athletes is mandated by several states and is becoming an integral component of concussion management programmes; however, little is known about student-athlete concussion knowledge and self-reporting of suspected concussion. This study explored to what extent collegiate student-athletes are knowledgeable on the topic of concussion, the relationship between having concussion knowledge and reporting behaviours, and factors contributing to not reporting when education has been provided...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27893369/customized-body-mapping-to-facilitate-the-ergonomic-design-of-sportswear
#6
Mingliang Cao, Yi Li, Yueping Guo, Lei Yao, Zhigeng Pan
A successful high-performance sportswear design that considers human factors should result in a significant increase in thermal comfort and reduce energy loss. The authors describe a body-mapping approach that facilitates the effective ergonomic design of sportswear. Their general framework can be customized based on the functional requirements of various sports and sportswear, the desired combination and selection of mapping areas for the human body, and customized quantitative data distribution of target physiological indicators...
November 2016: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/27889869/left-ventricular-speckle-tracking-derived-cardiac-strain-and-cardiac-twist-mechanics-in-athletes-a-systematic-review-and-meta-analysis-of-controlled-studies
#7
REVIEW
Alexander Beaumont, Fergal Grace, Joanna Richards, John Hough, David Oxborough, Nicholas Sculthorpe
BACKGROUND: The athlete's heart is associated with physiological remodeling as a consequence of repetitive cardiac loading. The effect of exercise training on left ventricular (LV) cardiac strain and twist mechanics are equivocal, and no meta-analysis has been conducted to date. OBJECTIVE: The objective of this systematic review and meta-analysis was to review the literature pertaining to the effect of different forms of athletic training on cardiac strain and twist mechanics and determine the influence of traditional and contemporary sporting classifications on cardiac strain and twist mechanics...
November 26, 2016: Sports Medicine
https://www.readbyqxmd.com/read/27881009/late-cardiac-effect-of-anthracycline-therapy-in-physically-active-breast-cancer-survivors-a-prospective-study
#8
A C Nagy, P GulAcsi-BArdos, Z CserEp, L Hangody, T Forster
The late-onset cardiotoxic effect of anthracycline is known, however the early detection and prevention of subclinical myocardial damage has not been fully understood yet. Besides medical therapy regular physical activities may also play a role in the prevention and reduction of side effects of chemotherapy. The aim of our present study was to detect the effect of regular physical activities on the diastolic function and on the symptoms of late heart failure in case of anthracycline chemotherapy. The prospective study included 55 female patients (age 31-65 year, average 49...
November 24, 2016: Neoplasma
https://www.readbyqxmd.com/read/27867415/prior-acute-mental-exertion-in-exercise-and-sport
#9
REVIEW
Fernando Lopes E Silva-Júnior, Patrick Emanuel, Jordan Sousa, Matheus Silva, Silmar Teixeira, Flávio Pires, Sérgio Machado, Oscar Arias-Carrion
INTRODUCTION: Mental exertion is a psychophysiological state caused by sustained and prolonged cognitive activity. The understanding of the possible effects of acute mental exertion on physical performance, and their physiological and psychological responses are of great importance for the performance of different occupations, such as military, construction workers, athletes (professional or recreational) or simply practicing regular exercise, since these occupations often combine physical and mental tasks while performing their activities...
2016: Clinical Practice and Epidemiology in Mental Health: CP & EMH
https://www.readbyqxmd.com/read/27861847/structural-and-functional-characteristics-of-the-thoracolumbar-multifidus-muscle-in-horses
#10
J A García Liñeiro, G H Graziotti, J M Rodríguez Menéndez, C M Ríos, N O Affricano, C L Victorica
The multifidus muscle fascicles of horses attach to vertebral spinous processes after crossing between one to six metameres. The fascicles within one or two metameres are difficult to distinguish in horses. A vertebral motion segment is anatomically formed by two adjacent vertebrae and the interposed soft tissue structures, and excessive mobility of a vertebral motion segment frequently causes osteoarthropathies in sport horses. The importance of the equine multifidus muscle as a vertebral motion segment stabilizer has been demonstrated; however, there is scant documentation of the structure and function of this muscle...
November 11, 2016: Journal of Anatomy
https://www.readbyqxmd.com/read/27856133/have-prohibition-policies-made-the-wrong-decision-a-critical-review-of-studies-investigating-the-effects-of-dmaa
#11
Matthew Dunn
In June 2012 DMAA (1,3-dimethylamylamine), an ephedrine-like vasoconstricting substance which had been included in many popular sports supplements, became a scheduled substance in Australia, following bans in several other countries. The underlying rationale for this ban was that DMAA use is unsafe. This paper aimed to critically review the available evidence on the acute and/or long-term harms of DMAA. Using five research databases (PubMed, Embase, ProQuest Health and Medical Complete, and Web of Science) and the key terms 'methylhexaneamine', 'DMAA', 'dimethylamylamine', '1,3-dimethylpentylamine' and '2-amino-4-methylhexane', 842 articles were identified once duplicates removed...
November 14, 2016: International Journal on Drug Policy
https://www.readbyqxmd.com/read/27844139/-cardiovascular-prevention-and-regular-physical-exercise-activity-and-training-as-the-true-polypill
#12
H Löllgen, N Bachl
Guidelines for cardiovascular prevention need to be regularly revised and updated. With respect to physical activity and exercise, many studies with practical relevance have been published in recent years. They are concerned with the evidence of physical activity for prevention of many diseases and the spectrum of indications for applying physical activity for prevention, therapy and rehabilitation. Training recommendations have been developed for the prevention of various diseases according to the FITT rule, which stands for frequency, intensity, time (of session) and type of sports followed by a progression in the amount of training...
December 2016: Herz
https://www.readbyqxmd.com/read/27832594/high-frequency-neuromuscular-electrical-stimulation-modulates-interhemispheric-inhibition-in-healthy-humans
#13
Nicolas Gueugneau, Sidney Grosprêtre, Paul J Stapley, Romuald Lepers
High frequency neuromuscular electrical stimulation (HF NMES) induces muscular contractions through neural mechanisms that partially match physiological motor control. Indeed, a portion of the contraction arises from central mechanisms, whereby spinal motoneurons are recruited through the evoked sensory volley. However, the involvement of supraspinal centers of motor control during such a stimulation remained poorly understood. Therefore, we tested whether a single HF NMES session applied to the upper limb influences interhemispheric inhibition (IHI) from left to right motor cortex (M1)...
November 9, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/27821615/features-for-muscle-fatigue-computed-from-electromyogram-and-mechanomyogram-a-new-one
#14
Şükrü Okkesim, Kezban Coşkun
Muscle fatigue produces negative effects in the performance and it may lead to a muscle failure. This problem makes the quantitative grading of muscle fatigue a necessity in ergonomic and physiological research. Moreover, the quantitative grading of muscle fatigue is needed to increase work and sport productivity and prevent several accidents that result from muscle fatigue. Even though there are many studies for this aim, there is no quantitative criterion for the evaluation of muscle fatigue. The main reason is that muscle fatigue is a complex physiological situation that is dependent on several parameters...
November 7, 2016: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/27808056/-mountain-medicine-an-introduction-i
#15
Kasper Fjellhaugen Hjuler, Bjørn Bay
Tourism to high-altitude areas is increasingly popular even from low-lying regions such as Denmark. Mountain sports include skiing, mountaineering, and ski touring. The young, elderly and at-risk individuals with pre-existing illnesses engage in recreational mountain activities. Thus, risk assessment and counselling regarding altitude exposure is increasingly relevant to all healthcare providers. In this first article of two in a review series, we summarize the state of the art of altitude physiology, alpine dangers and avalanches, and medical aspects of the increased UV-exposure at altitude...
October 31, 2016: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/27806014/a-performance-analysis-of-a-stand-up-paddle-board-marathon-race
#16
AProf Ben Schram, Prof Wayne Hing, AProf Mike Climstein, AProf James Furness
Stand up paddle boarding (SUP) is a rapidly growing sport and recreational activity in which little scientific research exists. A review of the literature failed to identify a single article pertaining to the physiological demands of SUP competition. The purpose of this study was to conduct a performance analysis of a national level SUP marathon race. Ten elite SUP athletes (6 male, 4 female) were recruited from the Stand Up Paddle Surfing Association of Australia to have their race performance in the Australian Titles analyzed...
October 28, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27806004/the-validity-and-contributing-physiological-factors-to-30-15-intermittent-fitness-test-performance-in-rugby-league
#17
Tannath J Scott, Grant M Duthie, Jace A Delaney, Colin E Sanctuary, David A Ballard, Jeremy A Hickmans, Ben J Dascombe
This study examined the validity of the 30-15 Intermittent Fitness Test (30-15IFT) within rugby league. Sixty-three Australian elite and junior-elite rugby league players (22.5 ± 4.5 yr, 96.1. kg ± 9.5 kg, Σ7 skinfolds: 71.0 ± 18.7 mm) from a professional club participated in this study. Players were assessed for anthropometry (body mass, Σ7 skinfolds, lean mass index), prolonged high-intensity intermittent running (PHIR; measured by 30-15IFT), predicted aerobic capacity (MSFT) and power (AAS), speed (40 m sprint), repeated sprint and change of direction (COD - 505 agility test) ability prior to and following an 11 week pre-season training period...
October 27, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27766157/the-physiological-musculoskeletal-and-psychological-effects-of-stand-up-paddle-boarding
#18
Ben Schram, Wayne Hing, Mike Climstein
BACKGROUND: Stand up paddle boarding (SUP) is a rapidly growing sport and recreational activity where anecdotal evidence exists for its proposed health, fitness and injury rehabilitation benefits. While limited scientific evidence exists to substantiate these claims, previous studies have shown that high levels of fitness, strength and balance exists amongst participants of this sport. The purpose of this study was to conduct a training intervention on a group of previously untrained individuals to ascertain the potential of SUP on various health parameters...
2016: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27763581/match-analysis-of-an-elite-beach-soccer-team
#19
Rosario Scarfone, Antonio Ammendolia
BACKGROUND: The aim of this study was to investigate the physiological demands and technical-tactical performances of field players in Italian elite beach soccer team. METHODS: Three official matches of the Italian First Division beach soccer tournament were analyzed to evaluate the heart rate (HR) and time-motion analysis considering: standing, walking, jogging, running and sprinting, and technical-tactical aspects. Repeated-measures ANOVAs were used to determine the effects of time on the physiological measures and time motion analysis...
October 20, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27751193/the-role-of-echocardiography-in-the-evaluation-of-cardiac-re-modelling-and-differentiation-between-physiological-and-pathological-hypertrophy-in-teenagers-engaged-in-competitive-amateur-sports
#20
Ljiljana S Sulovic, Meho Mahmutovic, Snezana Lazic, Nenad Sulovic
: Aims "Athlete's heart" is a cardiac adaptation to long-term intensive training. The aims of this study were to show the prevalence of left ventricular hypertrophy in teenagers who participate in sports, to define the different types of cardiac re-modelling, and to differentiate between physiological and pathological hypertrophy. METHOD: Echocardiographic measurements were obtained by M-mode, two dimensional, and Doppler techniques of participants from sports and control groups...
October 18, 2016: Cardiology in the Young
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