Sports Sciences Commons^™

Effects Of Resveratrol Supplementation On Delayed Onset Muscle Soreness And Muscle Recovery: A Systematic Review, Nurdiana Zainol Abidin, Cheong Hwa Ooi, Kazunori Nosaka, Vishanth Rathakrishnan, Siok Yee Chan, Noor Khairiah A. Karim

Research outputs 2022 to 2026

Delayed onset muscle soreness (DOMS) and impaired muscle recovery significantly affect athletes and recreational exercisers, influencing their performance and training consistency. Resveratrol, a natural polyphenol known for its anti-inflammatory and antioxidant properties, is thought to mitigate these effects, yet its effectiveness remains to be fully verified. This systematic review evaluates the impact of RES supplementation on muscle recovery in adults by examining its influence on DOMS, oxidative stress, and inflammation, along with its interactions with other supplements. Three electronic databases and one registry were searched in October 2023. A total of 10 studies met the inclusion criteria, encompassing a combined …

In Vivo Human Medial Gastrocnemius Fascicle Behaviour And Belly Gear During Submaximal Eccentric Contractions Are Not Affected By Concentric Fatiguing Exercise, Matheus Daros Pinto, Kazunori Nosaka, Anthony J. Blazevich

Research outputs 2022 to 2026

Changes in muscle geometry and belly gearing during eccentric contractions influence fibre strain and susceptibility to muscle damage. They are modulated by the interaction between connective tissues and intracellular-intrafascicular fluid pressures and external pressures from neighbouring structures. Fatiguing exercise triggers fluid shifts (muscle swelling) and muscle activation changes that may influence these modulators. Our purpose was to measure medial gastrocnemius (MG) geometric changes in vivo during eccentric contractions before and after maximal concentric muscle work to test the hypothesis that fatigue would reduce fascicle rotation and muscle gear and provoke greater fascicle strain. Submaximal eccentric plantar flexor contractions at 40% …

Exercise Professional Education, Qualifications, And Certifications: A Content Analysis Of Job Postings In The United States, Rachele Pojednic, Devin P. O’Neill, Molly G. Flanagan, Alexis Bartlett, Byron L. G. Carter, Mary A. Kennedy

Research outputs 2022 to 2026

Introduction: Growth in the field of clinical exercise science and the potential impacts on overall health and wellbeing have driven the need for qualified, clinically trained, exercise professionals. And yet, it is not well understood what specific credentials employers are seeking when hiring exercise professionals. Purpose: The purpose of the study was to examine the qualification requirements for professionals seeking employment in exercise science, exercise physiology, kinesiology or equivalent fields. Methods: Search platforms Indeed.com and USAJobs.gov were examined within a two week period in 2022. Search terms included “Exercise Physiology”, “Exercise Science”, “Exercise Professional”, “Exercise Prescription”, “Exercise Specialist”, and “Kinesiology”. …

Reduction And Recovery Of Self-Sustained Muscle Activity After Fatiguing Plantar Flexor Contractions, Anthony J. Blazevich, Ricardo N. O. Mesquita, Ronei S. Pinto, Timothy Pulverenti, Sébastien Ratel

Research outputs 2022 to 2026

Purpose: Persistent inward calcium and sodium currents (PICs) are crucial for initiation and maintenance of motoneuron firing, and thus muscular force. However, there is a lack of data describing the effects of fatiguing exercise on PIC activity in humans. We simultaneously applied tendon vibration and neuromuscular electrical stimulation (VibStim) before and after fatiguing exercise. VibStim induces self-sustained muscle activity that is proposed to result from PIC activation. Methods: Twelve men performed 5-s maximal isometric plantar flexor contractions (MVC) with 5-s rests until joint torque was reduced to 70%MVC. VibStim trials consisted of five 2-s trains of neuromuscular electrical stimulation (20 …

Barriers To Exercise In Patients With Metabolic Dysfunction-Associated Steatotic Liver Disease: A Patient Survey, Kedar Deshpande, John Olynyk, Oyekoya Ayonrinde, Kazunori Nosaka

Research outputs 2022 to 2026

Background: Although adequate physical activity is an essential component of treatment for metabolic dysfunction-associated stea-totic liver disease (MASLD), the majority of people with MASLD do not engage in regular exercise and lead sedentary lifestyles. We aimed to identify perceived barriers to exercise and to examine awareness about the role of exercise in the treatment of MASLD. Methods: Individuals aged 18 years and above were recruited from a hepatology outpatient clinic. MASLD severity was assessed using controlled attenuation parameter (CAP) and transient elastography (TE) determined liver stiffness measurement (LSM) for the severity of hepatic steatosis and fibrosis, respectively. An online questionnaire …

Injury In Starting And Replacement Players From Five Professional Men’S Rugby Unions, Simon P. Roberts, Keith A. Stokes, Sean Williams, Stephen W. West, Simon Kemp, Matt Cross, Isabel S. Moore, Charlotte L. Bitchell, Prabhat Mathema, Ken Quarrie, Warren Mcdonald, Lauren Fortington, Eduardo R. Rubio Del Castillo, Clint Readhead, Nicola Sewry, Éanna Falvey, Ross Tucker

Research outputs 2022 to 2026

Objectives: The aim of this study was to compare the incidence, severity, and burden of injury in starting and replacement players from professional men’s teams of five rugby unions. Methods: Match injuries of greater than 24 h time-loss (including data on the severity, match quarter, event, body region) and player minutes of match exposure data were collated for all starting and replacement players in the men’s English Premiership, Welsh Pro14 (both 2016/17–2018/19 seasons), and Australian, New Zealand, and South African Super Rugby (all 2016–2018 seasons) teams. Injury incidences and mean injury burden (incidence × days missed) were calculated, and rate …

Powerlifting Participation And Engagement Across All Ages: A Retrospective, Longitudinal, Population Analysis With Comparison To Community Strength Norms, Daniel J. Van Den Hoek, Alistair Mallard, Joel M. Garrett, Patrick L. Beaumont, Robert J. Howells, Jemima G. Spathis, Joshua Pearson, Christopher Latella

Research outputs 2022 to 2026

Background: In Australia, one-third of people ≥ 15 years perform regular resistance training and 90% of those do not meet current health guidelines. All age groups should engage in regular resistance exercise, to maintain strength and function. Objectives: To identify trends in powerlifting competition participation in Australia by sex and age group from 1968 to 2022, and to compare the strength of powerlifting competitors to population age- and sex-based normative values. Method: The number of unique participants and total competition entries for each year were analysed using Australian powerlifting competition data. Subdomains of age and sex were investigated, and mean …

Resistance Exercise Minimal Dose Strategies For Increasing Muscle Strength In The General Population: An Overview, James L. Nuzzo, Matheus Daros Pinto, Benjamin J. C. Kirk, Kazunori Nosaka

Research outputs 2022 to 2026

Many individuals do not participate in resistance exercise, with perceived lack of time being a key barrier. Minimal dose strategies, which generally reduce weekly exercise volumes to less than recommended guidelines, might improve muscle strength with minimal time investment. However, minimal dose strategies and their effects on muscle strength are still unclear. Here our aims are to define and characterize minimal dose resistance exercise strategies and summarize their effects on muscle strength in individuals who are not currently engaged in resistance exercise. The minimal dose strategies overviewed were: “Weekend Warrior,” single-set resistance exercise, resistance exercise “snacking,” practicing the strength test, …

Resistance Training Effects On Pubertal Children With A Risk Of Developing Pediatric Dynapenia, Cassio V. Victora Ruas, Sébastien Ratel, Kazunori Nosaka, Gabriela Castellano, Ronei S. Pinto

Research outputs 2022 to 2026

Purpose: Many modern-day children are at risk of pediatric dynapenia (muscle weakness). We examined the effects of a 12-week resistance training (RT) program on neuromuscular function and body composition parameters in pubertal children with a risk of dynapenia. Methods: Twelve children (13.4 ± 0.9 y) with dynapenia performed a progressive RT program consisting of knee extension and flexion, bench press, abdominal crunch, back extension, lateral pull-down, elbow flexion, and upright row (1–2 sets of 10–15 repetitions/exercise) twice/week for 12 weeks. Outcome measures included one-repetition maximum (1-RM) strength, maximal voluntary isometric contraction (MVIC) torque, rate of torque development (RTD), electromyographic (EMG) …

Can The Cross-Education Of Strength Attenuate The Impact Of Detraining After A Period Of Strength Training? A Quasi-Randomized Trial, Grant S. Rowe, Anthony J. Blazevich, Janet L. Taylor, Timothy Pulverenti, G. Gregory Haff

Research outputs 2022 to 2026

Purpose: Unilateral strength training may attenuate the decline in muscle strength and size in homologous, contralateral muscles. This study aimed to determine whether the cross-education of strength could specifically attenuate the effects of detraining immediately after a short (prehabilitation-type) period of strength training. Methods: Twenty-six strength-trained participants were assigned to either four weeks of unilateral strength training of the stronger arm (UNI) or detraining (Detrain). Motor evoked potential (MEP) and cortical silent period (cSP) responses, muscle cross-sectional area (CSAFlexor; peripheral quantitative computed tomography) and maximal strength, rate of force development (RFD) and muscle activation (EMG) were examined in both elbow …

Confronting Cte: A Blog Dedicated To Increasing Awareness In Chronic Traumatic Encephalopathy, Caden Shea

Honors Program Theses

The variation on a creative thesis that I formed was a website and blog that utilized research about Chronic Traumatic Encephalopathy and how it affects athletes of all kinds, specifically athletes in the National Football League. The reason that I chose this topic is because the field that I hope to go into is that of sports journalism. One of the biggest problems facing sports leagues all over the world is the issue of safety. One of the biggest safety concerns in sports is that of head injuries, and one of the most prominent head injuries is CTE. I chose …

Herniated Nucleus Pulposus Radiculopathy In Athletes, Elizabeth G. Massel

Capstone Showcase

Herniated nucleus pulposus (HNP), commonly referred to as intervertebral disc (IVD) herniation, is the second most common cause of neck and back pain, and most common cause of radiculopathy. The purpose of this CME article is to provide guidance on the medical management and secondary prevention of HNP in athletic populations, and highlight the pathophysiological process of mechanical overload putting athletes at a proportionately higher risk of the disease. It will address the unique pathophysiology of overuse-related HNP, as opposed to underuse, with the mechanical overload on vertebral discs associated with many sports. It will also review, with more emphasis …

The Role Of Age As A Risk Factor For Pickleball-Related Injuries, Ches Jones, Bart Hammig

Health, Human Performance and Recreation Faculty Publications and Presentations

Pickleball is a popular sport that includes players from many different demographics. The popularity has resulted in not only increases in participation but also in activity related injuries. The purpose of this study was to identify risk factors along with potential mechanisms for injuries related to pickleball and identify effective countermeasures. Methods included the identification of pickleball related injuries from a US National Emergency Room database (NEISS). A narrative section of the database was used to identify and categorize potential mechanisms of injury. Results indicated that the types and mechanisms of injury relate to three specific age groups: younger, middle …

Bone Stress Injuries, Risk Of Low Energy Availability, Disordered Eating, Menstrual Dysfunction, Training Volume, And Exercise Dependence In Female Trail Runners, Saleen Zarate, Kelly Pritchett, Robert Pritchett, Namrita Kumar Brooke

All Master's Theses

ABSTRACT

BONE STRESS INJURIES, RISK OF LOW ENERGY AVAILABILITY, DISORDERED EATING, MENSTRUAL DYSFUNCTION, TRAINING VOLUME, AND EXERCISE DEPENDENCE IN FEMALE TRAIL RUNNERS

by

Saleen Zarate

June 2024

Problematic LEA can lead to REDs, which results in negative health outcomes such as impaired bone health. Trail runners may engage in a higher volume of training and may be at risk for LEA, MD, DE, and EXD, which may further increase the risk for bone stress injuries. This study aimed to explore and compare the prevalence of self-reported SFs between competitive and recreational female trail runners. Specifically, we aimed to examine risk …

Does The Size-Weight Illusion Exist During Deadlift?, Dakota Kerbow, Luke Mallory, Robin Dorociak, Peter Jang, Andrew Meszaros

Student-Faculty Research - College of Physical Therapy

Purpose:

to assess whether the SWI exists during deadlift (whole body loading), and identify the mechanical factors that explain or overcome the illusion

Fatigue Changes Biomechanical Variables In Drop Vertical Jump Performance In Competitive Basketball Players, Isabella Bruno, Caroline Linardos, Michala Rennels, Kristina Williams, Robin Dorociak, Jaydee Romick, Jason Brumitt

Student-Faculty Research - College of Physical Therapy

The drop vertical jump (DVJ) has been used as a tool to identify athletes at risk for injury. Initial studies have suggested an association between biomechanical variables and injury (1); however, subsequent research has demonstrated no relationship (2-4). Evaluating variables in fatigued athletes may help clinicians identify athletes at risk. Advances in motion capture technology now allow for assessment of variables after a fatigue protocol.

Prediction Of Recurrent Lateral Ankle Sprain And Ankle Pain Using Applied Care Strategies And Patient-Reported Outcomes, Ryan S. Mccann, Elisabeth Ohrnberger, Kyle B. Kosik, Phillip A. Gribble

Rehabilitation Sciences Faculty Publications

Context

Patients with lateral ankle sprains (LASs) often have deficient patient-reported outcomes (PROs) at return to activity (RTA), potentially increasing risk for recurrent LAS and ankle pain. Additionally, applied care strategies are known to correct impairments, but their ability to mitigate risk for long-term consequences remains unknown.

Objective

To determine if applied care strategies and PRO scores at RTA and 6 months after RTA predict recurrent LAS and ankle pain 12 months after an acute LAS. DESIGN: Prospective cohort study.

Setting

Online survey.

Patients or Other Participants

We enrolled 63 individuals within 1 week of sustaining an acute LAS.

Main …

The Impact Of Different Forms Of Physical Activity On An Athlete's Memory., Hannah Lebeck

Williams Honors College, Honors Research Projects

Memory is an integral part of human life, needed for all aspects of daily living, especially for college students. Previous research has shown a plethora of benefits to several systems of the body for those who participate in chronic aerobic activity. This research has shown chronic aerobic physical activity to provide an enhanced memory through numerous physiological adaptations. Studies on chronic anaerobic activity and its effect on the brain are minimal, demanding more research be done. PURPOSE: Determine the effect of aerobic and anaerobic exercise on memory and cognitive function in different classifications of collegiate athletes. METHODS: Study to consist …

Running Economy Changes Alter Predicted Running Speed And Performance In Collegiate Runners, Oluchi Ibe, Robert Musci, Jenevieve L. Roper

Health and Human Sciences Faculty Works

The goal of the study was to determine the effect of altering running strategy on predicted running performance in distance runners through application of a novel prediction model. Fifteen male (n = 10; Age: 22.2 ± 4.9 years; Height: 177.7 ± 7.4 cm; Mass: 68.6 ± 6.7 kg) and female (n = 5; Age: 21.8 ± 4.1 years; Height: 167.4 ± 7.8 cm; Mass: 59.3 ± 8.1 kg) long distance runners were recruited to participate in the study. Participants’ oxygen consumption (VO2) and carbon dioxide (VCO2) were measured by a metabolic cart using a face mask. After a brief warm-up, …

Associations Between Urine Specific Gravity And Race/Ethnicity At The Population Level: Implications For Hydration Status Categorization, Ian P. Winter, Brain K. Ferguson, Patrick B. Wilson

Exercise Science Faculty Publications

Objective

We aimed to evaluate how urine specific gravity (USG) and rates of supposed hypohydration vary by race/ethnicity, and to examine how adjustment for several important factors impacts estimated USG.

Methods

Using the National Health and Nutrition Examination Survey, this cross‐sectional study evaluated a total of 4195 (2098 female, 2097 male) Americans and categorized them as supposedly hypohydrated (USG≥1.020) or not using spot urine samples. USG and prevalence of supposed hypohydration were compared across racial/ethnic groups, separately by gender. The analyses considered the impact of urine creatinine, body composition, age, dietary nutrients, and physical activity.

Results

Differences in supposed hypohydration …