Download or read book Comparing Kilocalorie Expenditure Between a Stair-stepper, a Treadmill, and an Elliptical Trainer written by Dawn E. Clay and published by . This book was released on 2000 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Aerobic exercise has many advantages for people who want to improve their cardiovascular fitness. One specific advantage is that aerobic activity stimulates the expenditure of calories which ultimately could affect weight. The purpose of this study was to determine if differences exist between actual calorie expenditure and the machine generated values for calorie expenditure while performing exercise on a StairMaster 4000PT, a Precor Elliptical EFX544, and a Trotter 640CR Treadmill. The three machines used for this study all require the user to accurately input their weight in order for the computer to generate accurate data about calories expended. Subjects for this study were women between the ages of 18-25. Each subject performed one exercise test on each of the three machines used in this study. After at least five minutes of rest and prior to being tested, a resting heart rate and blood pressure were taken. The testing order was randomly determined using Popsicle sticks. Each subject was weighed prior to each test to determine accurate body weight. A polar heart rate monitor was attached, and the subject was allowed a five minute warm-up on the correct machine with the Aerosport Teem 100 equipment in place to acquaint them with the testing equipment. Following the warm-up, data was collected from a 10-minute submaximal steady state test. Each subject used a "no hands" technique on each piece of equipment to maintain consistency. To equate workloads between each of the machines used in this study, the heart rate of each subject was required to reach 75% of the HRR using the Karvonen formula. The researcher then made every effort to assure that the heart rate was maintained within four beats throughout the test by encouraging the subjects to maintain the same intensity. At-test was used to determine the level of significant difference between machine generated and actual calorie expenditure for each of the three machines. The alpha level was set at .05. The results of the t-test showed a significant difference between actual and machine generated calorie expenditure only for the StairMaster, with machine generated calories higher than actual calories expended. The results of this study may be due to the fact that the StairMaster has a greater number of variables to consider than the Precor Elliptical or the Trotter Treadmill"--Document.