Health and Physical Education Commons^™

Peripheral Heating With Negative Pressure Increases Arterial Blood Flow, Brigitte Fuller, Matthew Fahey, Kevin Paul Eusoof, Paige Straus, Michael Buono Facsm, Jeff Moore

International Journal of Exercise Science: Conference Proceedings

Over half (53%) of adults in the United States have some form of diabetes. Traditional treatments have been inadequate in stopping this epidemic suggesting the need for novel therapies. Peripheral heating with negative pressure has previously been shown to reduce blood glucose. The mechanisms behind this effect are unknown but may be related to changes in blood flow to the treated extremity. PURPOSE: To examine changes in flow rate (time averaged mean velocity (TAMV)), vessel cross-sectional area (CSA), and blood flow in the popliteal artery before and during peripheral heating with negative pressure applied to the feet. METHODS: …

The Relationship Between Concussion History And Sex On Lower Extremity Biomechanics During A Cutting Task, Warren O. Forbes, Jason M. Avedesian, Janet S. Dufek

International Journal of Exercise Science: Conference Proceedings

Athletes with a history of sports related concussion (SRC) have been shown to exhibit lower extremity (LE) mechanics during high impact landing tasks that are conducive to increased injury risk. The underlying cause, and extent of this phenomena is currently unknown. PURPOSE: The purpose of this study was to analyze the relationship between SRC history and sex on LE biomechanics during a land-and-cut task. METHODS: College athletes with a history of SRC and a control group of healthy athletes matched by sport, position, sex, and age were recruited for this study. Both groups were comprised of 9 males …

The Effect Of Resistance Training On Bone Mineral Density And Muscular Strength In Children With Autism Spectrum Disorder, Jodi F. Engelhardt, Stephanie S. Wang, Alvaro Leal Gomez, Monica C. Orosa, Areum K. Jensen

International Journal of Exercise Science: Conference Proceedings

Autism Spectrum Disorder (ASD) is a complex neurological disorder characterized by impaired social interaction and atypical behaviors. Children with ASD appear to have lower muscular function and low bone mineral density (BMD). Recent studies have indicated that adolescents with ASD develop obesity and bone fracture incidence at a higher rate compared to typically developing children (TDC). However, it is unclear if such weakened musculoskeletal function is a consequence of the neurological disorder state in ASD or if it is due to the limited opportunity for physical activity and exercise in the ASD population. PURPOSE: To identify the effect of progressive …

Academic Stress And Motivation For Physical Activity In College Students, Gustavo Donis-Castro, Sarah Dunn

International Journal of Exercise Science: Conference Proceedings

PURPOSE: Stress and the college experience go hand in hand. Stress has been shown to negatively impact a college student’s life and their confidence. Therefore, the purpose of this study was to assess the influence that academic stress in college students has on one's motivation to participate in physical activity (PA). METHODS: An Institutional Review Board approved Qualtrics, cross-sectional online survey was conducted during the fall 2021 term. This study utilized the 13-item Perceived Stress Inventory (PSI), and 9-item Self-Efficacy for Exercise (SEE), based on studies by Avdija, A. S. (2018) and Resnick, et al. (2000) respectively. Questions …

Anomalous Rib And Nonunion Of A First Rib Fracture Causing Thoracic Outlet Syndrome In A Football Player, Anthony Diomino, Dale Bongbong, Kenneth Vitale Md, Facsm

International Journal of Exercise Science: Conference Proceedings

HISTORY: An 18-year-old male right hand dominant football player with past medical history of complete right ACL tear presents with chronic right neck and shoulder pain for two years after a shoulder press exercise. Four months later, he fell from a fence with his right arm outstretched. One year after the initial event, during football training, he sustained a shoulder injury with a pop under his shoulder blade.

PHYSICAL EXAM: There is asymmetry of the trapezius muscles with obvious indentation of the right anterior supraclavicular region compared to the left. There is also subluxation of the right ulnar nerve at …

The Effects Of Elevation Gain On The Pack Hike Test: Implications For Interagency Hotshot Crews, Justin Demoss, Kevin Valenzuela, Kurt A. Escobar, Evan E. Schick

International Journal of Exercise Science: Conference Proceedings

It is unknown if administering a graded load carriage task, which more closely mirrors the occupational circumstances wildland firefighters are exposed to, improves the validity of the Pack Hike Test and its’ ability to differentiate between the fitness profiles amongst Interagency Hotshots (IHC) and type 2 crews. PURPOSE: The aim of the current study was to examine the performance differences and HR responses between IHC and type 2 crews when completing a maximal effort graded load carriage task. METHODS: This study compared performance outcome measures amongst two classes of hand crews, Type 1 (IHC; n=12) and Type 2 …

The Effects Of A Heel Lift On Squat Biomechanics, Lexy Clark, Miranda Moeslein, Donovyn Murray, Jared W. Coburn, Kevin Choe

International Journal of Exercise Science: Conference Proceedings

The barbell squat is an effective exercise for improving lower extremity function. During the descent of a squat, the hip and knee joints flex while the ankle joint dorsiflexes. The hip and knee joints then extend and the ankle joint plantarflexes when standing up. During the squat, some athletes use shoes with an elevated heel or other means of heel elevation to achieve lower squat depth. Research has suggested that use of heel elevation may improve range of motion (ROM) of the lower extremity joints and improve stability of the movement during deep squats, especially with an external load. PURPOSE …

The Correlations Of Lumbar Spine Trabecular Bone Score With Bone Mineral Density And Body Composition In Postmenopausal Women, Braulio Cazarez, Carolina Garcia, Maurice Cruz, Auguste Torres, Zhaojing Chen

International Journal of Exercise Science: Conference Proceedings

It is well known that postmenopausal women are more predisposed to osteopenia and osteoporosis due to estrogen deficiency. Although bone mineral density (BMD) measured by dual energy x-ray absorptiometry (DXA) is a major determinant of bone strength, many other factors contribute to the risk of fractures. Trabecular Bone Score (TBS) is a novel method to estimate the trabecular microarchitecture using the lumbar spine DXA image, which can potentially evaluate bone health at an earlier stage (Silva et al. 2014). PURPOSE: To examine the relationships between the lumbar spine TBS with BMD and body composition in postmenopausal women. METHODS: Twenty-three female …

How Does Diet Quality Predict The Performance Of Rotc Cadets On The Acft, Grant Calhoun, Sofia Harman, Annika C. Grams, Ruth Larson, Payton Price, Sara Thomasson, Kaitlyn Wabakken, Katelynn Brock, Zachary Zeigler, Anthony Acevedo

International Journal of Exercise Science: Conference Proceedings

The Army Combat Fitness Test (ACFT) is a newly developed test assessing U.S. Army soldiers' combat readiness. The Healthy Eating Index 2015 (HEI-2015) is a questionnaire established by the USDA that quantifies overall diet quality. The HEI-2015 uses a scale of 0 to 100 with higher scores aligning more with the recommendations from the Dietary Guidelines for Americans. The HEI-2015 is comprised of 13 subcategories: Total Fruits [TF], Whole Fruits [WF], Total Vegetables [TV], Greens and Beans [GB], Whole Grains [WG], Dairy [D], Total Protein foods [TP], Seafood and Plant Proteins [SPP], Fatty Acids [FA], Refined Grains [RG], Sodium [S], …

Unilateral Load Carriage In Golf Increases Frontal Plane Moment Demand At The Knee, Guanrong Cai, Jordan Cannon, Yunsheng Zou, George Salem

International Journal of Exercise Science: Conference Proceedings

Golf equipment transportation (GET) is a regular task in the sport of golf, a popular activity with more than 66 million participants globally. Unilateral GET is commonly practiced by junior and collegiate golfers, and professional caddies, who incur large walking distances daily, especially during competition. Therefore, the influence of GET on knee mechanics during gait has important implications for performance and injury risks. Furthermore, frontal-plane lower extremity (LE) demands including knee abductor moment during activities may alter knee mechanics and contribute to pain and progression of osteoarthritis (OA). Purpose: To compare the frontal-plane knee moments of two different GET methods …

Interaction Between Age And Fatigue On Antagonist Muscle Coactivation During An Acute Post-Fatigue Recovery Phase, Elizabeth Cafferty, Sara Harper, Brennan J. Thompson

International Journal of Exercise Science: Conference Proceedings

PURPOSE: This study investigated the age-related changes in antagonist muscle coactivation of the biceps femoris (BF) during an acute recovery period following a leg extensor fatiguing protocol. METHODS: Twenty-three young (mean±SD: age=25.1±3.0 years) and twenty-three old men (age=71.5±3.9 years) participated. Surface electromyography (sEMG) was recorded from the BF muscles for antagonist muscle coactivation. Testing involved participants performing leg extension isometric maximal voluntary contractions (MVCs) and isokinetic MVCs at 240°·s-1 at baseline (Pre) and again after the fatigue protocol at 0 (Post0), 7 (Post7), 15 (Post15), and 30 (Post30) minutes post fatigue. Root mean square (RMS) values were computed …

10-Year Weight Change And Biological Aging In A Random Sample Of 3,059 U.S. Adults, Joshua Brockbank, Larry A. Tucker

International Journal of Exercise Science: Conference Proceedings

Telomeres play a key role in the protection of chromosomes. A good index of biological aging is the length of telomeres. Telomeres gradually shorten over time. Hence, they are strongly related to chronological age. Lifestyle is also an important factor influencing telomere length. PURPOSE: This investigation was designed to study the relationship between 10-yr weight change and leukocyte telomere length (LTL) in a large sample of 3,059 randomly selected U.S. adults, 35-70 years old. METHODS: NHANES (National Health and Nutrition Examination Survey) data were used with a cross-sectional design to determine the relationship between percent weight change and LTL. Percent …

Impacts Of A Novel Non-Stimulant-Based Ergogenic Supplement Blend On Maximal Oxygen Uptake And Time To Fatigue: A Pilot Study, Michiel P. Breen, Jason M. Cholewa, Steven B. Machek

International Journal of Exercise Science: Conference Proceedings

CrossFit athletes are frequently subjected to high-intensity training sessions that demand commensurately robust muscular and cardiovascular endurance capacities. Despite the propensity of research investigating the role of aerobically-associated ergogenic aids, few have elucidated their combination in highly trained athletic populations. PURPOSE: to evaluate the preliminary efficacy of a novel supplement comprising several empirically-supported ingredients and their potential ability to impact the aerobic performance in experienced CrossFit athletes. METHODS: Six experienced CrossFit athletes (3M/3F; aged 41±13y; training 5±1 times/week) ingested 2.0mL daily of a novel supplement proprietary formulation (Flow, Cerus, Vero Bleach, FL) containing Beetroot (Beta Vulgaris), Ashwagandha (Withania Somnifera), Arjuna …

Snapping Triceps Syndrome: A Rare Cause Of Medial Elbow Pain, Dale Bongbong, Kevin Gilbert Ms, Kenneth Vitale Md, Fascm, Jennifer Tram Md

International Journal of Exercise Science: Conference Proceedings

PURPOSE: Snapping medial triceps is a relatively rare cause of medial elbow pain that occurs when the tricep tendon dislocates over the medial or lateral epicondyle. Physical exams usually demonstrate intermittent medial elbow pain with extreme elbow flexion or extension, however dynamic diagnostic studies allow for direct visualization of the dislocating tricep. This case report adds to the sparse literature on snapping medial triceps. METHODS: We report a rare occurrence of snapping medial triceps in a young female who initially presented with pain at the posteromedial right elbow with extreme flexion and extension. Intermittent snapping of the medial elbow was …

Vigorous Physical Activity And The Length Of Telomeres Across Levels Of Bmi In 4,458 U.S. Adults, Christina M. Blackmon, Larry A. Tucker

International Journal of Exercise Science: Conference Proceedings

Telomere length is an index of cellular aging. Longer telomeres are predictive of longer life. Healthy lifestyles are associated with longer telomeres. PURPOSE: This study focused on the relationship between time spent in vigorous physical activity (PA) and leukocyte telomere length (LTL) in 4,458 randomly selected U.S. adults, 20-69 years old. METHODS: The association was studied using data collected as part of the National Health and Nutrition Examination Survey (NHANES) and a cross-sectional design. Vigorous physical activity was indexed by calculating total time spent jogging or running per week (Jog/Run/Wk). Weekly jog/run time was calculated by multiplying days of jog/run …

Strength Training And Biological Aging: Telomere Evidence From A National Sample Of 4,813 U.S. Adults, Carson J. Bates, Larry A. Tucker

International Journal of Exercise Science: Conference Proceedings

Telomere length is an index of biological aging. As humans age, their telomeres become progressively shorter. Additionally, healthy lifestyle practices are associated with longer telomeres and unhealthy habits predict shorter telomeres. PURPOSE: This study evaluated the association between weekly time spent strength training (ST) and leukocyte telomere length (LTL) in 4,813 randomly selected U.S. adults, 20-69 years old. METHODS: Data collected as part of the National Health and Nutrition Examination Survey (NHANES) was employed to answer the research question using a cross-sectional design. The findings are generalizable to the U.S. adult population. Time spent ST per wk was calculated by …

The Effect Of Quercetin On Bone Turnover Markers, Inflammatory Markers, And Bone Mineral Density In Postmenopausal Women: A Double-Blind Placebo-Controlled Investigation, Alyssa R. Bailly, Garrett M. Hester, Robert J. Buresh, Michaela M. Alesi, Jeremy B. Ducharme, Christine M. Mermier, Trisha A. Vandusseldorp

International Journal of Exercise Science: Conference Proceedings

Maintaining optimal bone health prevents major bone disorders (e.g., osteoporosis) and prolongs longevity. Quercetin is a plant-based flavonoid that is suggested to have anti-inflammatory effects and may improve bone health. PURPOSE: To investigate the effects of quercetin supplementation over 90-days on prominent bone turnover markers (BTMs), inflammatory markers, bone mineral density (BMD), body composition, and physical functioning in postmenopausal women. METHODS: Thirty-three healthy, nonosteoporotic, postmenopausal women (59.2±7.0 years) participated in a double-blind, placebo-controlled investigation. Participants were randomized into one of two supplement groups: 1) 500 mg of quercetin (QUE) once daily or 2) 500 mg of methylcellulose (placebo; …

Validity Of A Novel Sensor For Noninvasive Measurement Of Core Body Temperature In Humans During Exercise, Colin Atkins, Grace Handler, Casandra Mendez, Alvin Molina, Lauryn Outlaw, Matthew G. Becker, Matthew M. Schubert

International Journal of Exercise Science: Conference Proceedings

The measurement of core body temperature during exercise can be useful for athletic performance and the prevention of heat-related illness. Non-invasive sensors have been developed for the measurement of core body temperature, but more data on their validity and reliability is needed before they can be recommended for widespread adoption. PURPOSE: The purpose of the present study was to evaluate a noninvasive core temperature sensor (T_Core) during exercise compared to an ingestible thermistor (T_Pill). METHODS: Twenty men and women (25 ± 4 years) participated in this study. Participants completed 20 minutes of exercise at 60% age-predicted …

Handgrip, Pinch Grip, And Reaction Time Of Firefighters And Police Officers, Zarmina Amin, Galilea Gutierrez, Yangmi Kang, Larissa True

International Journal of Exercise Science: Conference Proceedings

Handgrip strength (HGS) and pinch grip strength are related to proper hand function. Quick and accurate reaction to stimuli is critical to perceptual-motor abilities. Firefighters (FF) and police officers (PO) are routinely involved in high-intensity emergency tasks that require HGS, pinch grip strength, and reaction time (RT). PURPOSE: The purpose was to examine differences in bimanual HGS, bimanual pinch grip strength, and dominant hand RT between FF and PO in the Southwest. METHODS: Anthropometric measures of the hand were taken. HGS was measured using a hand dynamometer. Tip, key and palmar pinch grip strength were measured using a …

Heart Rate Variability Threshold Evaluation During Arm And Leg Cycling, Kaylee Allen, Nicolas Clark, David H. Fukuda Ph.D.

International Journal of Exercise Science: Conference Proceedings

Background: The Heart Rate Variability Threshold (HRVT) is a point of deflection in heart rate variability assessed during incremental exercise to exhaustion. This threshold is thought to represent a shift in the autonomic balance. Purpose: The purpose of this study was to evaluate (HRVT) during arm (AC) and leg cycling (LC). Methods: There were twenty-three participants (age: 23.3±4.7 years; height: 168.6±7.5 cm; weight 66.8±8.9 kg). Participants completed two graded exercise tests, one for AC and one for LC on different days. They wore a heart rate monitor which recorded R-R intervals. The test performed was a graded exercise test to …