Physiology Commons^™

Carbohydrate Mouth Rinse Improves 1.5 H Run Performance: Is There A Dose-Effect?, Benjamin F. Wright, Glen Davison

International Journal of Exercise Science

International Journal of Exercise Science 6(4) : 328-340, 2013. There is a substantial body of recent evidence showing ergogenic effects of carbohydrate (CHO) mouth rinsing on endurance performance. However, there is a lack of research on the dose-effect and the aim of this study was to investigate the effect of two different concentrations (6% and 12% weight/volume, w/v) on 90 minute treadmill running performance. Seven active males took part in one familiarization trial and three experimental trials (90-minute self-paced performance trials). Solutions (placebo, 6% or 12% CHO-electrolyte solution, CHO-E) were rinsed in the mouth at the beginning, and at 15, …

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 …

Dietary Habits, Menstrual Health, Body Composition, And Eating Disorder Risk Among Collegiate Volleyball Players: A Descriptive Study, Suzanne L. Vargas, Kelly Kerr-Pritchett, Charilaos Papadopoulous, Virginia Bennett

International Journal of Exercise Science

International Journal of Exercise Science 6(1) : 52-62, 2013. Volleyball is typically considered a non-aesthetic sport. However, the revealing nature of volleyball uniforms may place additional pressure on female volleyball players to be thin and increase the risk of disordered eating. The purpose of this study was to provide descriptive data concerning the body composition, nutritional habits, eating disorder risk, and menstrual health of collegiate volleyball players. Female collegiate volleyball players (N = 14) completed a 7-day food record, menstrual health questionnaire, and EAT-26 survey. Participant body composition was determined using a 3 site skinfold test and the Bod …