Life Sciences Commons^™

Stabillity Ball Sitting Elevates Peak Arm Ergometry Oxygen Consumption And Heart Rate, Charles R.C Marks, Leah Dupuie, Jennifer Patros

International Journal of Exercise Science

International Journal of Exercise Science 5(4) : 360-366, 2012. This study compared sitting on a stability ball (B) to sitting on a chair (C) during arm ergometry to determine the impact on peak VO₂, peak heart rate (HR), and exercise intensity prescription. Open-circuit spirometer, blood pressure, and HR were monitored during rest and continuous graded exercise test to exhaustion using an arm ergometer. Twenty-seven apparently healthy adults exercised twice, once at B and the other trial C (order randomized), with 60 minutes of rest between trials. ANOVA for repeated measures (a < 0.05) and paired t testing using Holm's-sequential Bonferroni were used …

Energy Drinks: Ergolytic Or Ergogenic?, Joe Sillivent, Jennifer Blevins-Mcnaughton, Kayla Peak

International Journal of Exercise Science

International Journal of Exercise Science 5(3) : 214-222, 2012. Despite the growing popularity of energy drinks, many do not realize the negative effects on the cardiovascular system. The purpose of this study was to examine the effects of energy drink ingestion on estimated VO₂max, heart rate (HR), systolic and diastolic BP (SBP and DBP, respectively), rate pressure product (RPP), and RPE at rest and during exercise. Seven healthy adults (age: 24.3 ± 3.5 yrs; body mass: = 66.0 ± 2.2 kg) participated in this randomized double blind, crossover study. Subjects ingested a placebo (PL) or Redline (RL) energy …

The Impact Of Physiologic Reductions In Blood Pressure Upon Oxygen Uptake During Moderate Intensity Leg Cycling, Cory L. Butts, Paul Mcdonough, David Keller, Mitchel Samels, Davor Krnjajic

International Journal of Exercise Science: Conference Proceedings

INTRODUCTION: Control of oxygen uptake (VO2) during the rest-to-exercise transition is thought to be dominated by intracellular processes rather than oxygen delivery. However, large changes in arterial pressure (i.e., supraphysiologic) have been shown to alter VO₂ and its kinetics. Importantly, no studies have investigated the consequence of physiologic alterations in blood pressure on VO₂ and its kinetics during exercise in humans. PURPOSE: The aim of this preliminary study was to assess the effect of modest reductions in MAP achieved via neck suction upon Vo₂ across the rest-exercise transition, to test the hypothesis that physiologic reductions in arterial …

Exercise Blood Pressures Are Lower After Aquatic Compared To Land Treadmill Training, Alex T. Carradine, Brad S. Lambert, Nicolas P. Greene, Travis W. Constanzo, Steven E. Martin, Stephen F. Crouse

International Journal of Exercise Science: Conference Proceedings

Exercise blood pressures are lower after aquatic compared to land treadmill training

Alex T. Carradine¹, Brad S. Lambert¹, Nicolas P. Greene², Travis W. Constanzo¹, Steven E. Martin¹, Stephen F. Crouse (FACSM)¹. Texas A&M University, College Station, TX. ²University of Virginia, Charlottesville, VA.

Traditional treadmill training has been shown to moderately decrease exercise blood pressures but the degree to which aquatic running alters exercise blood pressures has not been fully investigated. PURPOSE: To compare the exercise blood pressure responses after land treadmill (LTM) training to an equivalent …

Influence Of A Short-Term Increase In Intraluminal Pressure, With And Without Recovery, On Ach-Induced Dilation In Senescent Skeletal Muscle Feed Arteries., John W. Seawright, Christopher R. Woodman

International Journal of Exercise Science: Conference Proceedings

Influence of a short-term increase in intraluminal pressure, with and without recovery, on ACh-induced dilation in senescent skeletal muscle feed arteries.

John W. Seawright¹ and Christopher R. Woodman^1,2

1. Vascular Biology Laboratory, Dept. of Health and Kinesiology, Texas A&M University, College Station, TX 77843

2. Dept of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX 77843

We tested the hypothesis that a short-term increase in intraluminal pressure, to mimic a 1 h bout of exercise, would attenuate or reverse age-induced impairments in acetylcholine (ACh)-induced dilation in soleus muscle feed arteries (SFA). In addition, we hypothesized that …

Effectiveness Of Isometric Handgrip Devices For Assessing Blood Pressure, Gurpreet K. Dhillon, Eddie T. C. Lam, Cheryl L. Delgado

International Journal of Exercise Science: Conference Proceedings

Effectiveness of Isometric Handgrip Devices for Assessing Blood Pressure

Gurpreet K. Dhillon, Eddie T.C. Lam, Ph.D., Cheryl Delgado, Ph.D., RN, C-ANP, James Ward, Dionna Kennedy, & Sohinee Kadylak

Institution: Cleveland State University

Gurpreet K. Dhillon (undergraduate, McNair Scholar)

Many health issues are associated with high blood pressure (e.g., arteriosclerosis and atherosclerosis). Some suggestions to control high blood pressure include to adopt an active lifestyle (e.g., maintain physical activities a few times a week) and to pay attention to the daily diet (e.g., minimize salt intake). However, a few studies found that the systolic blood pressure of the participants dropped …

An Investigation Of Expired Gas Influence On The Shape Of The Heart Rate Response At Maximal Effort In Cyclists, Alissa Donaldson, Frank Wyatt, Lon Kilgore

International Journal of Exercise Science: Conference Proceedings

PURPOSE: To use mathematical examination to determine if expired gases, (i.e. VO₂ and VCO₂), influence neural response and affect the shape of the three phases of a heart rate (HR) response during a maximal, incremental cycling test. METHODS: Archived data from ten (10) well-trained cyclists (mean VO₂ max 68.7 ml/kg/min) who performed VO₂ maximal tests using the Australian Institute for Sport (AIS) protocol was used to calculate group mean HR, VO₂ and VCO₂ values for each phase of a test to volitional fatigue. A trend line of best fit was assigned to each …

Effect Of Resistance Training On Vcam-1 And Cortisol In Hiv+ Men With Chemical Dependence, John H. Curtis, Jakob L. Vingren, David W. Hill

International Journal of Exercise Science: Conference Proceedings

Effect of resistance training on VCAM-1 and Cortisol in HIV+ men with chemical dependence

Curtis, John H., Vingren, Jakob L., Hill, David W., The Applied Physiology Laboratory, The University of North Texas, Denton, TX

Resistance training can reduce the effects of inflammatory diseases and contribute to skeletal muscle repair and regeneration. Cortisol functions to reduce inflammation in the body however, it can impair the immune system. Elevated levels of Vascular Cell Adhesion Molecule 1 (VCAM-1) are associated with an increased risk of cardiovascular disease. Chemical dependency is also associated with immune impairment. Purpose: The purpose of this study was to …

Stability Ball Sitting Versus Chair Sitting During Sub-Maximal Arm Ergometry, Charles R.C Marks, Kristina E. Hylland, Jacob Terrell

International Journal of Exercise Science

Purpose: It was predicted that sitting on a stability ball during arm ergometry would elevate cardiovascular parameters when compared to sitting on a chair and that this would be associated with greater recruitment of trunk and leg skeletal muscles. Methods: Open-circuit spirometry, video taping, blood pressure, heart rate, and EMG were conducted during rest and four minute stages of 15 W, 30 W, and 45 W using a Monark arm ergometer. Twenty-six apparently healthy adults exercised twice, once sitting on a stability ball and the other sitting on a chair (order randomized), with 45 to 60 minutes of rest between. …