Maximal exercise testing using the elliptical cross-trainer and treadmill

Dalleck, L.C., Kravitz, L., & Robergs, R.A. (2004) Maximal exercise testing using the elliptical cross-trainer and treadmill. Journal of Exercise Physiology Online, 7(3), pp. 94-101.

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The purpose of this study was to compare the physiological responses during incremental exercise to fatigue using the elliptical cross-trainer and treadmill running. Twenty recreationally active individuals (10 men and 10 women, mean age, height, weight, and body composition = 29.5±7.1 yr, 173.3±12.6 cm, 72.3±7.9 kg, and 17.3±5.0 BF%) completed two randomized VO2max tests: treadmill and Precor elliptical cross-trainer separated by 1-3 days. Breath-by-breath data were collected using a fast response turbine flow transducer and custom developed software with AEI oxygen and carbon dioxide electronic gas analyzers. All breath-by-breath data were smoothed using a 7-breath moving average. Criteria for attainment of VO2max included two of the following: respiratory exchange ratio (RER) > 1.1, maximal heart rate (HR) within 15 b/min of the calculated value, or VO2 plateau (ΔVO2 < 50 mL/min with an increase in power output). Paired t-tests were performed to determine mean differences between VO2max, maximal HR, maximal RER, and protocol duration. No significant differences (p>0.05) were found in VO2max (47.9 vs. 47.3 ml/kg/min), maximal HR (186 vs. 184 b/min), maximal RER (1.22 vs. 1.25), and protocol duration (11.56 vs. 12.17 min) between elliptical crosstraining and treadmill running. In conclusion, this study revealed that the elliptical cross-trainer produced similar maximal physiological values compared to treadmill running during VO2max testing.

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ID Code: 96865
Item Type: Journal Article
Refereed: Yes
Keywords: carbon dioxide; oxygen, adult; article; body composition; body height; body weight; breathing; calculation; comparative study; controlled study; equipment; exercise test; fatigue; female; gas analysis; heart rate; human; lung gas exchange; male; normal human; physiology; recreat
ISSN: 1097-9751
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Schools > School of Exercise & Nutrition Sciences
Copyright Owner: Copyright 2004 American Society of Exercise Physiologists
Deposited On: 25 Jul 2016 02:25
Last Modified: 29 Jul 2016 14:19

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