Neuroscience and Neurobiology Commons^™

Perceptual Fatigability And Neuromuscular Responses During A Sustained, Isometric Forearm Flexion Muscle Action Anchored To A Constant Level Of Perceived Exertion, Robert W. Smith, John Paul V. Anders, Tyler J. Neltner, Jocelyn E. Arnett, Joshua L. Keller, Terry J. Housh, Richard J. Schmidt, Glen O. Johnson

Journal for Sports Neuroscience

Objective: The purpose of the present study was to examine the fatigue-induced changes in torque, and the electromyographic (EMG) and mechanomyographic (MMG) responses during a sustained submaximal, isometric forearm flexion muscle action anchored to a constant rating of perceived exertion (RPE). Methods: Eleven women (mean ± SD: age = 20.5 ± 1.9 yrs.; height = 169.9 ± 6.6 cm; body mass = 73.2 ± 15.9 kg) performed 2, 3s forearm flexion maximal voluntary isometric contractions (MVIC) before a sustained isometric muscle action anchored to RPE = 7 until task failure (defined as torque that would require RPE > 7, or the …

Assessing A Novel Adaptation To Cci Devices To Model Human Mild Traumatic Brain Injury, William R. Kochen, Kristen Craven, Rachel E. Barkey, Jane M. Flinn, David D. Cerri

Journal for Sports Neuroscience

Background: Traumatic Brain Injuries (TBIs) are a health crisis with over a million people suffering injuries each year in the United States. The majority of TBIs are mild injuries which often produce no period of unconsciousness and no gross damage to the brain or skull. A range of TBI animal models exist but many produce injuries too severe to characterize as mild. One TBI induction method commonly used is Controlled Cortical Impact (CCI) devices.

New Method: The purpose of this study is to assess a novel adaptation to CCI devices that allows for the induction of mild injuries that …

Validation Of A Single Channel Eeg For The Athlete: A Machine Learning Protocol To Accurately Detect Sleep Stages, Kayla Thompson, Kamil Celoch, Frankie Pizzo, Ana I. Fins, Jaime Tartar

Journal for Sports Neuroscience

There is a large and growing movement towards the use of wearable technologies for sleep assessment. This trend is largely due to the desire for comfortable, burden free, and inexpensive technology. In tandem, given the competitive nature of professional athletes enduring high training load, sleep is often jeopardized which can result in adverse outcomes. Wearable devices hold the promise of increasing the ease of monitoring sleep in athletes which can inform health and recovery status, as well as aid performance optimization. However, wearable devices typically lack sufficient validity to assess sleep – and especially sleep stages. To address this concern, …

Proceedings From The Second Annual Society For Neurosports Conference, William R. Kochen

Journal for Sports Neuroscience

Proceedings from the Second Annual Society for NeuroSports Conference

Muscular Performance And Neuromuscular Fatigue Are Not Sex-Dependent During Low-Load Fatiguing Bilateral Leg Extension Exercise, Taylor K. Dinyer, Evangeline P. Soucie, Pasquale J. Succi, Caleb C. Voskuil, M. Travis Byrd, Haley C. Bergstrom

Journal for Sports Neuroscience

Purpose. This study examined the sex-related differences in muscular performance and neuromuscular (electromyographic [EMG] and mechanomyographic [MMG] amplitude [AMP] and mean power frequency [MPF]) responses during fatiguing leg extension repetitions performed at the critical load (CL). Methods. Eleven men and nine women completed one-repetition maximum (1RM) testing, repetitions to failure at 50, 60, 70, and 80% 1RM to determine CL, and repetitions to failure at CL, on separate days. The EMG and MMG, AMP and MPF signals and number of repetitions completed were recorded. Results. There were no sex-dependent responses in the %1RM that corresponded to, the number of repetitions …

Creatine Supplementation On Cognitive Performance Following Exercise In Female Muay Thai Athletes, Lawert A.M. Pires, Scott C. Forbes, Darren G. Candow, Marco Machado

Journal for Sports Neuroscience

BACKGROUND: Creatine supplementation has some beneficial effects on cognitive processing in healthy adults, including athletes; however the effects on cognitive function following exhaustive exercise in athletes is unknown. Therefore, the purpose was to determine the effects of 28 days of creatine supplementation on tasks of cognitive performance immediately following exhaustive exercise in Muay Thai female athletes compared to placebo. METHODS: Using a repeated measures, double-blind, placebo controlled design, 26 female Muay Thai athletes (age: 26 ± 5 years; body mass: 65.1 ± 6.6 kg; height: 162 ± 5 cm; training experience: 2.6 ± 0.6 years) were randomized to supplement with …

Creatine And Cognitive Functioning: What Is The Role Of Exercise Frequency?, Jonathan B. Banks, Jose Antonio, Amanda S. Holtzman, Mykola Marang, Catherine Weber, Alexsandra Alvarez-Beaton, Aysha Patel, Jaime Tartar

Journal for Sports Neuroscience

Creatine consumption appears to have a positive impact on cognitive function in different populations but the effects of creatine in a young, healthy population are mixed. Additionally, exercise appears to benefit cognitive processes in young and older adults. The present study explored the ways in which exercise frequency may moderate the effect of creatine consumption on working memory, sustained attention, mind wandering, and speed of processing, in a young, healthy, adult population. Forty-two individuals were randomly assigned to a creatine condition (n = 20) or a control condition (n = 22). For each session, participants completed the Symmetry …

An Objective Method To Assess And Recommend Exertion And Exercise Targets For Return To Play Post Concussion, Joseph F. Clark Phd Atc, Robert E. Mangine Pt Med Atc, Kimberly A. Hasselfeld Ms, Violet T. Schramm, Angelo J. Colosimo Md, Aaron Kuehn-Himmler At Ms, Gerald M. Holloway Ms Atc, Faniel Fosselman Do Mba, Jon Vincent, Nicole Giordano, Jon G. Divine Md Ms

Journal for Sports Neuroscience

Introduction.

Concussions are of significant concern for athletic trainers, and there is a critical need to objectively and safely allow an athlete to return to play. In sports the objective is return as safely and soon as possible. Exertion is a consideration regarding progressing an athlete back to play. The ability to exert in cardiovascular and strength and conditioning contexts are two critical steps in most return to play protocols. Being able to make objective recommendations is urgently needed, as trial and error leads to unnecessary risk of eliciting symptoms and/or causing setbacks.

Objective.

The object of this paper is …

Survey Of Prevention And Intervention Strategies Reducing Return To Play Post-Concussion In Division 1 Football, Joseph F. Clark, Enna Selmanovic, Kip Drewry, Jon Vincent, Aaron Himmler, Bob Mangine, Kim Hasselfeld, Jane Khoury, David Polanski, Jon Divine

Journal for Sports Neuroscience

Abstract.

Introduction

Sports related concussion, also considered mTBI, has remained in the public eye due to heightened fear concerning playing football and other collision based sports. Concussion prevention, as well as rehabilitating the brain after a concussion, is a high priority for many sports medical practitioners as well as for athletes. For these reasons, researchers associated with the American Athletic Conference (AAC) have surveyed concussion incidence in football. One of the AAC teams engaged in regular neurovisual training (NVT) and concluded this training program is associated with faster return to play post-injury in this observational cohort study.

Methods

The …