Life Sciences Commons^™

High-Density Lipoprotein Antioxidant Responses To High-Intensity Interval And Steady-State Moderate-Intensity Exercise, Zacharias Papadakis, Jeffrey S. Forsse, Annie A. Bane, Taylor Kyle, Li Qian, Flor Elisa Morales Marroquín, Peter W. Grandjean

International Journal of Exercise Science: Conference Proceedings

High-intensity interval exercise (HIIE) may impart health benefits beyond what is acquired through moderate-intensity steady state exercise (SSE). Paraoxonase 1 (PON1), an antioxidant associated with high-density lipoprotein (HDL), may be altered with exercise; however, it is unclear whether HIIE provides a greater stimulus for increasing PON1 antioxidant activity than a comparable or greater amount of SSE. PURPOSE: Determine the influence of HIIE on PON1 concentration and activity relative to a comparable amount of moderate-intensity SSE and a dose that is half that of SSE. METHODS: Seventeen male participants (age 27.8 + 6.4 yr; weight 80.6 + 9.0 kg; BMI 25.1 …

Effects Of Fish Oil Supplementation On Post-Resistance Exercise Muscle Soreness In Untrained Females, Grant M. Tinsley, Joshua J. Gann, Stefan R. Huber, Paul M. La Bounty, Rodney G. Bowden, Thomas L. Andre, Paul M. Gordon, Peter W. Grandjean

International Journal of Exercise Science: Conference Proceedings

The anti-inflammatory properties of omega-3 fatty acids contained in fish oil may help alleviate symptoms of delayed onset of muscle soreness (DOMS) and improve recovery from exercise.

PURPOSE: To examine the effects of fish oil supplementation on the time-course of post-resistance exercise muscle soreness in young untrained females.

METHODS: Seventeen non-resistance trained females (age 23.6 ± 3.0 y, % fat 27.4 ± 3.2, weight 60.2 ± 9.6 kg) were randomized into one of two groups: fish oil (6 g/d; 5:1 EPA:DHA) or placebo (6 g/d corn/soy oil). After consuming the supplements for one week, participants underwent a single bout of …

Pre-Prandial Vinegar Ingestion Improves Two-Hour Glucose Control In Older, Type Ii Diabetics More Than Post-Prandial Walking, Sarah J. Taylor, Matthew J. Garver, Anna E. Ciufo, Taylor G. Flowers, Chase M. Harbach, Austin A. Ray, Cory M. Scheadler

International Journal of Exercise Science: Conference Proceedings

Background: Exercise engagement benefits diabetic patients through an insulin-like effect on muscle. Literature indicates that vinegar consumption may lower blood glucose levels. It is not currently clarified whether a relative amount of vinegar ingestion or a walking bout is more effective at controlling glucose in older, Type II diabetics during the acute phase following a meal. Purpose: The aim was to directly compare the impact of preferred-pace walking (15 min, postprandial) versus ingestion of a relative quantity of vinegar (0.3 g/kg) on two-hour glucose control. Methods: The two arms of the trial were completed in a randomized, …

Nutritional, Bone, And Physical Fitness States Of Jockeys In Chronic Repetition Of Short-Term Weight Loss, Soeun Jeon, Kyungho Cho, Gina Ok, Hyon Park

International Journal of Exercise Science: Conference Proceedings

Professional jockeys are required to fit their weight, mainly weight loss, for two game days every weekend during racing season which usually lasts 10 months a year in Korea. The repetitive routine weight loss protocol is performed for 4 to 5 days a week include two game days. This situation would have brought some negative effects on the professional jockeys' overall health and physical condition with the relation of their performance. The purpose of the present study was: 1) to examine the weight loss habits of pro-jockeys, and 2) effects of chronic short-term weight loss on nutritional status, bone health, …

C.Elegans As A Diabetes & Ischemia Model: Identification Of Genetic And Cellular Changes That Modulate The Survival Of Hyperglycemia And Oxygen-Deprivation, Anastacia M. Garcia, Mary L. Ladage, Brian K. Mcfarlin, Rajeev K. Azad, Pamela A. Padilla

International Journal of Exercise Science: Conference Proceedings

Diet represents an exogenous influence that often yields colossal effects on an individual’s phenotype, physiology, long-term health and disease risk. The overconsumption of dietary sugars for example, has contributed to significant increases in obesity and type 2 diabetes, health issues that are costly both in terms of dollars and human life. Additionally, individuals with these conditions have compromised oxygen delivery and thus, an increased vulnerability to other oxygen-deprivation related disease states, including cardiovascular disease, ischemic strokes, vascular and coronary diseases and myocardial infarction. While human and other mammalian studies have shown that individuals with type 2 diabetes have a worse …

Consumption Of A High-Fat Meal Alters Post-Prandial Sirt Mrna Expression In Blood Leukocytes, Jill N. Sampson, Andrea L. Henning, Eric A. Prado, Adam Venable, Pamela Padilla, Brian K. Mcfarlin

International Journal of Exercise Science: Conference Proceedings

Introduction. Sirtuins (SIRT) are protein deacetylases, hypothesized to regulate the transcription of various genes involved in the prevention of atherogenesis and diet induced obesity. Previous research from our laboratory has demonstrated that consumption of a single, high-fat meal increases various CVD risk factors for up to 5-h post-prandial. Given the importance of SIRT to metabolic disorders, it is reasonable to speculate that a single, high-fat meal also disrupts SIRT. Methods. The purpose of this study was to determine the effect of a high-fat meal (75% of daily kcals & 80% of daily fat needs), on SIRT mRNA expression in blood …

Effects Of Nutrition Education On Dietary Intake Quality And Nutrition Knowledge In Professional Soccer Players – A Pilot Study, Brittany Wise, Randahl Capurro, Donovan Fogt

International Journal of Exercise Science: Conference Proceedings

Background and Aims: Nutrition is an important factor for optimal performance of professional athletes. Several studies have demonstrated that elite athletes, especially soccer players, don’t eat enough or a high quality diet. Research shows that a diet with 65-70% of calories from carbohydrates, 20-35% calories from fat and approximately 12% of calories from protein out of an approximate 5,000 kcal diet will show improvements in performance of athletes training at high intensities. This pilot study aimed to test the impact of a targeted nutrition education program on dietary intake quality and nutrition knowledge in professional soccer players.

Methods: We initially …

Effects Of Vaporized Nicotine On Resting Metabolic Rate And Physical Work Capacity, Michael A. Levi, Steven P. Stelly, Natalie Hines, Loren Koehler, Aida Nasirian, Javier Torres, Marsyl Cotton, William H. Cooke, Donovan L. Fogt, Caroline A. Rickards

International Journal of Exercise Science: Conference Proceedings

Download PDF

3b-Hydroxy-5a-Androst-1-En-17-One Increases Testosterone Bioavailability Through Downregulation Of Sex Hormone Binding Globulin Protein, Lisa T. Jansen, Jorge Granados, Halie Harton, Matthew R. Kuennen

International Journal of Exercise Science: Conference Proceedings

Download PDF

The Effect Of Exercise Intensity On Postprandial Blood Lipids In Physically-Inactive Men, Laurel A. Littlefield Ph.D., Zacharias Papadakis M.S., Katie M. Rogers B.S., Jose Moncada-Jiminez Ph.D., J. Kyle Taylor Ph.D., Peter W. Grandjean Ph.D., Facsm

International Journal of Exercise Science: Conference Proceedings

Download PDF

The Effects Of Vespa Amino Acid Mixture On Cycling Performance During A 20k Time Trial, Sebastian Haynes, Adam Parker

International Journal of Exercise Science: Conference Proceedings

The effects of Vespa Amino Acid Mixture on cycling performance during a 20k time trial.

Sebastian Haynes and Adam Parker, Ph.D.

Department of Kinesiology

Angelo State University, San Angelo, TX

Category: Undergraduate

Mentor: Adam Parker (adam.parker@angelo.edu)

Abstract

Vespa amino acid mixture (VAAM) is a nutritional supplement derived from the Asian Mandarin Wasp (Vespa Mandarina). VAAM has been shown to enhance lipolysis in rat adipocytes and is purported to improve endurance performance via enhanced fat metabolism. The purpose of this study was to examine the effects VAAM on cycling performance during a 20k time trial. 10 trained, male cyclists …

Validity Of A Nutrition Knowledge Questionnaire For Adults With Intellectual Disability, Brooke Marie Bouza

International Journal of Exercise Science: Conference Proceedings

Nutrition professionals consider individuals with intellectual disabilities to be nutritionally vulnerable or at risk for becoming overweight or obese. Presently there is limited empirical evidence regarding the nutritional habits and education of individuals with intellectual disabilities. Currently the Special Olympics Healthy Athletes program has become the largest global public health organization dedicated to serving people with intellectual disabilities. In 2012, Special Olympics Texas provided nearly 1,600 health screenings to athletes. The screenings provide surveillance information for public health organizations in the use of health planning, prevention, and promotion. The purpose of this study was to examine the validity of a …

Measuring The Effects Of Pre-Workout Supplementation On Resting Metabolic Rate, R. Harper, V. Sodhi, A. Torre, M. Lafferty

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.

Creatine Kinase, Lactate Dehydrogenase, And Myoglobin Responses Following Repeated Wingate Anaerobic Tests Versus Barbell Back Squats: A Pilot Study, Jocarol E. Shields, Matt S. Stock, Micheal J. Luera, Ibrahim K. Munayer, John C. Young

International Journal of Exercise Science: Conference Proceedings

The results from many previous studies have demonstrated that muscle damage and delayed onset muscle soreness are due primarily to high force, eccentric muscle actions. However, the majority of investigators have examined these responses following single-joint, isokinetic assessments. The purpose of this study was to examine creatine kinase (CK), lactate dehydrogenase (LDH), and myoglobin responses following repeated Wingate anaerobic tests versus multiple sets of the barbell back squat exercise. Six recreationally resistance-trained men (mean ± SD age = 23 ± 2 years, body mass = 88.0 ± 17.8 kg, one repetition-maximum [1RM] back squat = 150.0 ± 28.3 kg) volunteered …

3-Hydroxy-5alpha-Androst-1-En-17-One Enhances Muscular Gains But Impairs The Cardio-Metabolic Health Of Resistance Trained Males., Jorge Granados, Trevor Gillum, Cammie Hodges, Matthew Kuennen

International Journal of Exercise Science: Conference Proceedings

No abstract provided.

The Influence Of Dietary Sugars And Acute Exercise On Postprandial Triglyceride And Glucose Concentration, James R. Rowe, Kyle Biggerstaff, Vic Ben-Ezra, Nancy Dimarco

International Journal of Exercise Science: Conference Proceedings

Purpose: Examine the effects of prior aerobic exercise on postprandial triglyceride (PPTG) and glucose concentration following a mixed liquid meal (LM) made with either glucose or fructose sugars. Methods: Sedentary pre-menopausal women (n=16; age=28.2±6.1yrs; Wt. = 61.2±10.5kg; BMI= 23.2±2.9 kg/m2; VO2 max =30.8±4.2 ml/kg/min) completed four trials in random order: 1) Control-Fructose, 2) Control-Glucose, 3) Exercise-Fructose, 4) Exercise-Glucose. Exercise consisted of treadmill walking at 65% VO2 max expending 500 calories. Control consisted of resting in the laboratory for approximately 1 hour. Trials were completed 15 hours prior to the LM. The morning after each trial, a fasting (12hr) blood sample …

Vitamin D Deficiency In Tamu Female Basketball Players And Supplement Effectiveness, Melissa Bellows, Jon Tanguay, Stephen F. Crouse, Diana Harbourt

International Journal of Exercise Science: Conference Proceedings

Purpose:

Vitamin D deficiency has been defined by the Institute of Medicine (IOM) as a level of serum 25-OH vitamin D less than 20 ng/mL. The Endocrine Society went on to further define vitamin D insufficiency as a level between 21 and 29 ng/mL. Research suggests that vitamin D deficiency could increase fracture risk in athletes, especially females who are naturally prone to deficiency.

Methods: Eight female athletes from the Texas A&M women’s basketball team

(21 ± 1yrs; 88 ± 18 kg; 179 ± 16.5cm; BMI 26 ± 3 kg/m²; black female) were identified to have low vitamin …

High On Grass? Influence Of Terrain On Human Walking Economy., Lindsay M. Wohlers, Kenneth P. Clark, Laurence J. Ryan, Peter G. Weyand

International Journal of Exercise Science: Conference Proceedings

Introduction: The metabolic energy cost of human walking has been extensively studied. However, the influence of terrain on the metabolic costs incurred across commonly encountered surfaces is not well understood. Objective: Our objective was to test whether the metabolic cost of walking would vary between treadmill, asphalt, and grass surfaces. We hypothesized that the metabolic energy cost of walking would not differ between the three common level walking conditions: (standard) commercial treadmill, firm asphalt and well-groomed grass field. Methods: Five subjects walked on a level treadmill at speeds ranging from 0.4 m·s^-1 to 1.9 m·s^-1. Indirect calorimetry …

Effects Of Capsaicin And Evodiamine Ingestion On Energy Expenditure And Fat Oxidation At Rest And After Moderately-Intense Exercise In Young Men, Neil A. Schwarz, Mike Spillane, Paul La Bounty, Pete Grandjean, Brian Leutholtz, Darryn S. Willoughby

International Journal of Exercise Science: Conference Proceedings

Capsaicin and evodiamine are two thermogenic agents each recognized for their ability to stimulate the sympathetic nervous system and are thus found in many dietary supplements. Therefore, the purpose of this study was to observe the effects that capsaicin and evodiamine have on hemodynamics, energy expenditure, and markers of lipid oxidation while at rest and after a single bout of moderate-intensity exercise in young men. In a randomized, cross-over design, 11 men orally ingested 500 mg of capsaicin, evodiamine, or placebo while at rest after 30 minutes of resting energy expenditure assessment using open-circuit spirometry. After an additional 30 minutes …

Healthy Bites: A Challenge-Based Worksite Wellness Nutrition Program, Mary E. Herndon, Adelina J. Espat, Laura R. Nathan-Garner

International Journal of Exercise Science: Conference Proceedings

Purpose: The worksite health promotion literature has shown that successful nutrition communication programs call for making small changes to diet, one at a time. The use of observational learning (role models) and a “challenge” scenario for behavior change is supported by Social Cognitive Theory. The significance of these small changes in worksites is underscored by a recent Harvard Business Review article suggesting workplace wellness programs can return up $2.71 on every $1.00 invested. The purpose of the proposed program, Healthy Bites, is to increase knowledge of employees regarding the impact of specific nutrition behaviors related to reducing cancer risk and …

Altered Irinotecan Pharmacokinetics In Diet-Induced Obesity, Pranav Shah, Adarsh Gandhi, Romi Ghose

International Journal of Exercise Science: Conference Proceedings

Title: Altered Irinotecan Pharmacokinetics in Diet-Induced Obesity

Authors: Pranav Shah*, Adarsh Gandhi and Romi Ghose

Affiliation: University of Houston, Department of Pharmacological and Pharmaceutical Sciences, Houston, TX - 77030

Purpose: Irinotecan (CPT-11) is a topoisomerase I inhibitor that has been shown to be highly effective in treatment of colon, stomach, pancreas, and non-small cell lung cancers. It has recently been shown that CPT-11 administration is associated with liver toxicity and this effect is compounded by baseline obesity. It was found that patients with a BMI index of >25 were twice as much susceptible to developing liver toxicity than patients with …

Relationship Between Dyslipidemia And Physical Activity In Mexican Children, Armando Avila-Rodríguez, Elias H. Avila-Rodriguez, Jesus M. Araujo-Contreras, Efren Rivas-Avila, Rebecca E. Lee, Luis J. Rodriguez-Ortega, Nohe Vargas-Chavez

International Journal of Exercise Science: Conference Proceedings

Purpose: The purpose of this research was to determine the relationship between physical activity and lipid levels in children 10 to 13 years of age living in Durango, Mexico. Method: Cross-sectional study performed in 823 children (n=428, 52% boys; n=395, 48% girls) enrolled in nine elementary schools. Physical activity was monitored in two ways: a) a questionnaire was used to obtain information about physical activity done in the previous week, and b) steps were counted for 24 hours with a Yamax SW-200 pedometer. A subsample of 425 children provided serum samples to determine total-cholesterol (TC), HDL-cholesterol (HDL-C), LDL-cholesterol (LDL-C) and …

Leptin And Its Association With Obesity Among Mexican Adolescents, Jesus M. Araujo-Contreras, Elias H. Avila-Rodriguez, Armando Avila-Rodriguez, Efren Rivas-Avila, Nelda Mier, Abelardo Camacho-Luis, Nohe Vargas-Chavez

International Journal of Exercise Science: Conference Proceedings

Purpose: To investigate the association between leptin concentrations and nutritional status among a Mexican adolescent population. Methods: Cross-sectional study with 448 adolescents attending five schools in Durango, Mexico. Serum leptin concentrations were measured by ELISA. Other measurements included height, weight, and waist and hip circumference. Body fat of participants was assessed with bio-electrical impedance using a body composition analyzer InBody-720. Sociodemographic information was also collected. Results: Based on IOTF BMI cut-off points, 34.1% of adolescents were overweight and obese and prevalence rates were higher among females (37.1%) than males (29.5%). In agreement with waist circumference, 22.5% of participants …

Angiotensin At2r Activation Increases Ace2/Ang1-7/Masr Axis And Prevents Fatty-Diet-Induced Obesity, Sourashish Nag, Quaisar Ali, Yonnie Wu, Tahir Hussain

International Journal of Exercise Science: Conference Proceedings

Purpose: Adipose tissue, the obligatory site of fat accumulation causing obesity, expresses local renin angiotensin system (RAS). RAS is commonly known to regulate blood pressure. However recently, we observed that angiotensin type 2 receptor (AT2R) activation prevents high-fat diet (HFD)-induced adiposity and hyperinsulinemia. Although, the mechanism(s) is(are) not known. There is evidence that other RAS components namely, the angiotensin type 1 receptor (AT1R) positively regulates while the angiotensin converting enzyme 2 (ACE2), which catalyzes the production of Mas receptor (MasR) peptide agonist Ang (1-7), inversely regulates adiposity and hyperinsulinemia. In light of the RAS inter-regulatory features, we hypothesize that AT2R …

Vitamin D Status In Lean And Obese Mexican American Children, Nadia H. Agha, Whitney L. Breslin, Brian K. Mcfarlin

International Journal of Exercise Science: Conference Proceedings

Vitamin D deficiency is a worldwide problem amongst adolescents and adults, particularly in minority populations due to high skin melanin content. Melanin blocks the absorption of UVB photons, which limits natural vitamin D accumulation, requiring more dietary intake of vitamin D. Vitamin D deficiency is associated with an increased risk for chronic diseases like cardiovascular disease and diabetes mellitus. Low levels of vitamin D are inversely correlated with systemic inflammation possibly mediating the relationship between vitamin D deficiency and disease. Adequate levels of vitamin D may decrease the risks of chronic diseases, including cardiovascular disease, diabetes mellitus, common cancers, and …

Oxidative Low Density Lipoprotein And Exercise: A Historical And Meta-Analysis, Nikita Tailor, Frank Wyatt, Benito Velasquez, Lon Kilgore

International Journal of Exercise Science: Conference Proceedings

PURPOSE: The purpose of this study is to use the meta-analytic approach to determine the impact of exercise on oxidized low density lipoproteins in an adolescent population and the role of oxidized low density lipoprotein in the etiology of atherosclerosis. Oxidized low density lipoprotein (Ox- LDL), a form of low density lipoprotein cholesterol, carries its own risk factors. A lower level of oxidative low density lipoproteins reduces the risk of cardiovascular diseases. METHODS: The evaluation was done using a meta-analytical approach. This approach is useful when similar studies with a small sample size are studied. All the variables are compared …

Elevated Mcp-1, Tnf-Α, Monocyte Concentration, And Dyslipidemia In Obese Mexican-American Children, Whitney L. Breslin, Craig A. Johnston, Kelley Strohacker, Katie C. Carpenter, Tiffany R. Davidson, Jennette P. Moreno, John P. Foreyt, Brian K. Mcfarlin

International Journal of Exercise Science: Conference Proceedings

Background: Obesity is an independent risk factor for chronic disease. The prevalence of obesity is especially high among Mexican-American children. Peripheral blood monocytes contribute to systemic inflammation and may mediate the relationship between obesity and chronic disease. Obesity affects monocytes and the circulating levels of cytokines/chemokines that influence monocyte behavior. Purpose: investigate alterations in blood monocytes and plasma cytokines/chemokine levels among healthy weight (zBMI ≤ 85th percentile; N=66), overweight (zBMI=85^th-95^th percentile; N=23), and obese (zBMI ≥ 95th percentile; N=39) Mexican-American children. Methods: Blood samples were analyzed for total monocyte concentration, pro-inflammatory monocyte concentration, and classic …

Effects Of A Single Bout Of Exercise On Lipoprotein Fractions In Hypercholesterolemic Women, Allen Sexton, Kavya Chelikani, Yunsuk Koh

International Journal of Exercise Science: Conference Proceedings

Effects of a Single Bout of Exercise on Lipoprotein Fractions in Hypercholesterolemic Women

Allen Sexton, Kavya Chelikani, and Yunsuk Koh

Department of Health and Kinesiology, Lamar University, Beaumont, TX 77710

Classification of First Author: Master’s

Background: Abnormal lipoprotein profiles are strongly associated with premature cardiovascular disease. Sedentary lifestyle and menopause may accelerate abnormal lipid and lipoprotein metabolism in women. A single bout of aerobic exercise at moderate intensity may positively alter serum lipoprotein fractions in postmenopausal women with high cholesterol levels.

Objectives: The current study investigated how a single bout of exercise affects lipoprotein fractions in sedentary, postmenopausal women with …

Are Men Cheaper Than Women? Insights From Walking Economy, Nicole S. Schultz, Peter G. Weyand

International Journal of Exercise Science: Conference Proceedings

ARE MEN CHEAPER THAN WOMEN? INSIGHTS FROM WALKING ECONOMY

Nicole S. Schultz and Peter G. Weyand

Southern Methodist University, Locomotor Performance Laboratory, Department of Applied Physiology and Wellness, Dallas, TX 75205

Introduction: The metabolic energy cost of human walking has been extensively studied. However, whether men and women require the same amount of energy (per kg of body mass) to walk at the same speed or cover the same distance remains unresolved. While most predictive algorithms incorporate only body mass and walking speed, we have recently found that mass-specific walking metabolic rates are inversely related to stature. Objective: We tested …

A Leucine-Enriched Diet Enhances Overload-Induced Growth And Markers Of Protein Synthesis In Aged Rat Skeletal Muscle, Rengfei Shi, Hoke Whitworth, William Mixon, Scott E. Gordon

International Journal of Exercise Science: Conference Proceedings

Introduction: The hypertrophic response to overload in fast-twitch skeletal muscle is impaired in aged humans and rats, and impaired protein synthesis pathway activation is hypothesized to be a contributing factor. Muscle growth occurs when protein synthesis exceeds protein degradation. Dietary supplementation of the essential amino acid leucine has been shown to enhance protein synthesis in both young and aged skeletal muscle. Leucine acts in part by activating mammalian target of rapamycin (mTOR; a key upstream regulator of protein synthesis pathways) as well as by attenuating the activation of 5'-AMP-activated protein kinase (AMPK; a negative regulator of mTOR and protein synthesis). …