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Kyle S Beyer, David H Fukuda, Michael J Redd, Jeffrey R Stout, Jay R Hoffman
Beyer, KS, Fukuda, DH, Redd, MJ, Stout, JR, and Hoffman, JR. Player selection bias in National Football League draftees. J Strength Cond Res 30(11): 2965-2971, 2016-Relative age effects (RAEs) have been studied as a potential factor associated with player selection bias in numerous sports. However, little research has examined the role of RAEs among National Football League (NFL) draftees. The purpose of the current study was to determine the existence of RAEs in NFL draftees from the last 10 NFL drafts. Draftee birth dates were collected and divided into calendar and scholastic quarters (SQ1-SQ4)...
November 2016: Journal of Strength and Conditioning Research
Paul J Tofari, Stuart J Cormack, Tammie R Ebert, A Scott Gardner, Justin G Kemp
Talent identification (TID) and talent development (TDE) programmes in track sprint cycling use ergometer- and track-based tests to select junior athletes and assess their development. The purpose of this study was to assess which tests are best at monitoring TID and TDE. Ten male participants (16.2 ± 1.1 year; 178.5 ± 6.0 cm and 73.6 ± 7.6 kg) were selected into the national TID squad based on initial testing. These tests consisted of two 6-s maximal sprints on a custom-built ergometer and 4 maximal track-based tests (2 rolling and 2 standing starts) using 2 gear ratios...
October 25, 2016: Journal of Sports Sciences
Kristen L Kucera, Karen G Roos, Jennifer M Hootman, Hester J Lipscomb, John M Dement, Barbara A Silverstein
BACKGROUND: Little is known about the work-related injury and illnesses experienced by certified athletic trainers (AT). METHODS: The incidence and characteristics of injury/illness claims filed in two workers' compensation systems were described from 2001 to 2011. Yearly populations at risk were estimated from National Athletic Trainers' Association membership statistics. Incidence rate ratios (IRR) were reported by job setting. RESULTS: Claims were predominantly for traumatic injuries and disorders (82...
October 24, 2016: American Journal of Industrial Medicine
Dominic Micklewright, Sue Kegerreis, John Raglin, Florentina Hettinga
The extent to which athletic pacing decisions are made consciously or subconsciously is a prevailing issue. In this article we discuss why the one-dimensional conscious-subconscious debate that has reigned in the pacing literature has suppressed our understanding of the multidimensional processes that occur in pacing decisions. How do we make our decisions in real-life competitive situations? What information do we use and how do we respond to opponents? These are questions that need to be explored and better understood, using smartly designed experiments...
October 25, 2016: Sports Medicine
Pedro Passos, Duarte Araújo, Keith Davids
An evolutionary psycho-biological perspective on competitiveness dynamics is presented, focusing on continuous behavioral co-adaptations to constraints that arise in performance environments. We suggest that an athlete's behavioral dynamics are constrained by circumstances of competing for the availability of resources, which once obtained offer possibilities for performance success. This defines the influence of the athlete-environment relationship on competitiveness. Constraining factors in performance include proximity to target areas in team sports and the number of other competitors in a location...
2016: Frontiers in Psychology
Michael V Hull, Andrew R Jagim, Jonathan M Oliver, Mike Greenwood, Deanna R Busteed, Margaret T Jones
BACKGROUND: Limited research exists on the effect of a sports dietitian (SD) on athletes' dietary habits and nutrient periodization, which is the deliberate manipulation of macronutrient intake to match training goals. Further, the difference in dietary habits between men and women collegiate athletes has been understudied. A survey questionnaire examining dietary habits and practices was administered to athletes at two universities that employed a full time SD. Not all athletes used the SD as their primary source for nutritional guidance...
2016: Journal of the International Society of Sports Nutrition
Cortie J Rolison, Milton Kyle Smoot
A 19-year-old golfer presented to the sports clinic with a 2-week history of dominant-hand pain after several months of daily golf. He had a metacarpal stress fracture. This case discusses the athlete's return-to-play timeline as well as reviews the current limited literature guiding return to play in grip athletes.
October 24, 2016: Sports Health
Heinz Lohrer, Tanja Nauck, Vasileios Korakakis, Nikos Malliaropoulos
BACKGROUND: The FASH (Functional Assessment Scale for Acute Hamstring Injuries) questionnaire has been recently developed as a disease-specific self-administered questionnaire for use in Greek, English, and German languages. Its psychometric qualities (validity and reliability) were tested only in Greek-speaking patients mainly representing track and field athletes. As hamstring injuries represent the most common football injury, we tested the validity and reliability of the FASH-G (G = German version) questionnaire in German-speaking footballers suffering from acute hamstring injuries...
October 24, 2016: Journal of Orthopaedic Surgery and Research
Fabian Sanchis-Gomar, Carme Perez-Quilis, Giuseppe Lippi, Gianfranco Cervellin, Roman Leischik, Herbert Löllgen, Enrique Serrano-Ostáriz, Alejandro Lucia
Atrial fibrillation (AF) is the most common heart arrhythmia, the risk of which typically increases with age. This condition is commonly associated with major cardiovascular diseases and structural heart damage, while it is rarely observed in healthy young people. However, increasing evidence indicates that paroxysmal AF can also onset in young or middle-aged and otherwise healthy endurance athletes (e.g., cyclists, runners and cross-country skiers). Here we review the topic of AF associated with strenuous endurance exercise (SEE), for example cycling, running and cross-country skiing, especially at a competitive level, and we propose the definition of a new syndrome based on the accumulating data in the literature: SEE-related AF under the acronym of 'PAFIYAMA' ('paroxysmal AF in young and middle-aged athletes')...
October 19, 2016: International Journal of Cardiology
Benedict U Nwachukwu, Pramod B Voleti, Brenda Chang, Patricia Berkanish, Gregory T Mahony, Riley J Williams, David W Altchek, Answorth A Allen
PURPOSE: To investigate differences between sport types for patient-reported outcome after anterior cruciate ligament reconstruction (ACLR). METHODS: Included patients were enrolled as part of a prospective institutional ACL registry. Inclusion criteria were preoperative self-identification as a competitive athlete, maximum score on the preoperative Marx Activity Scale, and minimum 2-year follow-up. Demographic, intraoperative, and outcome data were extracted from the registry...
October 20, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
Giorgio Cozzi, Veronica Guastalla, Egidio Barbi
No abstract text is available yet for this article.
November 2016: Annals of Emergency Medicine
Muath M Altarawneh, Aaron Petersen, Robert Smith, David M Rouffet, Francois Billaut, Ben D Perry, Victoria L Wyckelsma, Antony Tobin, Michael J McKenna
PURPOSE: Salbutamol inhalation is permissible by WADA in athletic competition for asthma management and affects potassium regulation, which is vital for muscle function. Salbutamol effects on arterial potassium concentration ([K(+)]a) during and after high-intensity continuous exercise (HIcont) and intermittent exercise comprising repeated, brief sprints (HIint), and on performance during HIint are unknown and were investigated. METHODS: Seven recreationally active men participated in a double-blind, randomised, cross-over design, inhaling 1000 µg salbutamol or placebo...
October 22, 2016: European Journal of Applied Physiology
Takuya Sekiguchi, Yoshihiro Hagiwara, Haruki Momma, Masahiro Tsuchiya, Kaoru Kuroki, Kenji Kanazawa, Yutaka Yabe, Masashi Koide, Nobuyuki Itaya, Eiji Itoi, Ryoichi Nagatomi
PURPOSE: Serious arm injuries in youth baseball players have been increasing. Though a breakage in the kinetic chain could affect arm injuries, an association between arm injuries and insufficient support of the trunk and lower extremities is not well understood. The purpose of this study was to investigate the association of low back and knee pain with elbow and/or shoulder complaints among youth baseball players. METHODS: A self-administered questionnaire and document informed consent were mailed to youth athletes belonging to the Miyagi Amateur Sports Association...
October 22, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Meredith McGinley, Kathleen M Rospenda, Li Liu, Judith A Richman
Collegiate extracurricular activities, despite their benefits, may place students at an increased risk for experiencing harassment. This study utilizes multiple waves of data from an online longitudinal survey to examine how participation in college activities (intramural sports, fraternities/sororities, school clubs) relates to experiences of sexual and generalized harassment and outcomes (psychological distress, heavy alcohol use) among undergraduates (N = 1852, 58.6% female, 57.4% White) in the Midwestern United States...
October 20, 2016: Journal of Adolescence
Bernard X W Liew, Susan Morris, Justin W L Keogh, Brendyn Appleby, Kevin Netto
BACKGROUND: In recent years, athletes have ventured into ultra-endurance and adventure racing events, which tests their ability to race, navigate, and survive. These events often require race participants to carry some form of load, to bear equipment for navigation and survival purposes. Previous studies have reported specific alterations in biomechanics when running with load which potentially influence running performance and injury risk. We hypothesize that a biomechanically informed neuromuscular training program would optimize running mechanics during load carriage to a greater extent than a generic strength training program...
October 22, 2016: BMC Musculoskeletal Disorders
Per Martin Arvidsson, Johannes Töger, Marcus Carlsson, Katarina Steding-Ehrenborg, Gianni Pedrizzetti, Einar Heiberg, Hakan Arheden
Intracardiac blood flow is driven by hemodynamic forces that are exchanged between the blood and myocardium. Previous studies have been limited to 2D measurements or investigated only LV forces. Right ventricular forces and their mechanistic contribution to asymmetric redirection of flow in the RV have not been measured. We therefore aimed to quantify three-dimensional hemodynamic forces in both ventricles in a cohort of healthy subjects, using magnetic resonance imaging 4D flow measurements. 25 controls,14 elite endurance athletes, and two patients with left ventricular dyssynchrony were included...
October 21, 2016: American Journal of Physiology. Heart and Circulatory Physiology
Mair Underwood
BACKGROUND: As a result of the mainstreaming of bodybuilding, the majority of image and performance enhancing drug (IPED) users are now not athletes or competitive bodybuilders, but recreational bodybuilders. Previous approaches provide little insight into how the shift from competitive to recreational contexts impacts the use of IPEDs. METHODS: In this study an online ethnographic approach is used to explore the social lives of IPEDs in a recreational context. The study focusses on the Zyzz fandom, an international online community of thousands of recreational bodybuilders who idolise the alleged IPED user Zyzz...
October 18, 2016: International Journal on Drug Policy
Aaron Manzanares, Ruperto Menayo, Francisco Segado
In a sport conditioned by natural elements such as sailing, visual perception is a key factor for the performance. The research has shown that the visual behaviour of athletes at different skill levels varies, which may cause differences in the performance achieved. The aim of this research was to examine the visual behaviour of sailors from different ranking positions at the start of a race in a simulated situation. Twenty junior sailors (N=10 top and N=10 bottom ranking) participated in the study. The visual behaviour was recorded at the start of a sailing simulation...
October 21, 2016: Motor Control
David Geard, Peter Reaburn, Amanda Rebar, Rylee Dionigi
Global population aging has raised academic interest in successful aging to a public policy priority. Currently there is no consensus regarding the definition of successful aging. However, a synthesis of research shows successful aging can be defined as a late-life process of change characterized by high physical, psychological, cognitive, and social functioning. Masters athletes systematically train for, and compete in, organized forms of team and individual sport specifically designed for older adults. Masters athletes are often proposed as exemplars of successful aging...
October 21, 2016: Journal of Aging and Physical Activity
David Herzig, Moreno Testorelli, Daniela Schäfer Olstad, Daniel Erlacher, Peter Achermann, Prisca Eser, Matthias Wilhelm
BACKGROUND/AIM: There is increasing popularity for athletes to use heart rate variability (HRV) to tailor training. A time-efficient method is HRV assessment during deep sleep. The aim was to validate the selection of deep sleep segments identified by RR-intervals with simultaneous electroencephalography (EEG) recordings and to compare HRV parameters of these segments with those of standard morning supine measurements. METHODS: In 11 world class alpine- skiers, RR-intervals were monitored during ten nights and simultaneous EEGs were recorded in 2-4 nights...
September 26, 2016: International Journal of Sports Physiology and Performance
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