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Use of respiratory quotients in assessment of aerobic work capacity
Abstract
Oxygen uptake and carbon dioxide output were measured in 32 untrained subjects during exercise on the bicycle ergometer. It was shown that the work respiratory quotient (RQ) under standardized conditions can be used as a measure of physical fitness. ΔRQ (work RQ minus 0.75) increases logarithmically with the work load and maximal O 2 uptake is reached at a ΔRQ value of 0.40. This observation offered the possibility of predicting the maximal O 2 uptake of a person, based on the measurement of RQ during a single bicycle ergometer test at a submaximal load. For each work RQ between 0.95 and 1.15 a factor was presented, together with the aid of a simple equation, which gave a good approximation (generally better than ±10%) of the maximal O 2 uptake.
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Citations
Cited by
Limiting factors for maximum oxygen uptake and determinants of endurance performance
BASSETT, D. R. (2000) · Medicine & Science in Sports & Exercise · doi:10.1097/00005768-200001000-00012 · Cited by 2,410
Anaerobic threshold and respiratory gas exchange during exercise.
Wasserman, K., Whipp, B. J., Koyl, S. N., & Beaver, W. L. (1973) · Journal of Applied Physiology · doi:10.1152/jappl.1973.35.2.236 · Cited by 2,094
The Prognostic Value of Exercise Testing in Patients with Cystic Fibrosis
Nixon, P. A., Orenstein, D. M., Kelsey, S. F., & Doershuk, C. F. (1992) · New England Journal of Medicine · doi:10.1056/nejm199212173272504 · Cited by 631
Edvardsen, E., Hem, E., & Anderssen, S. A. (2014) · PLoS ONE · doi:10.1371/journal.pone.0085276 · Cited by 366
Fleg, J. L., Piña, I. L., Balady, G. J., Chaitman, B. R., Fletcher, B., Lavie, C., Limacher, M. C., Stein, R. A., Williams, M., & Bazzarre, T. (2000) · Circulation · doi:10.1161/01.cir.102.13.1591 · Cited by 287
Metadata
- Authors
- Issekutz, B., Birkhead, N. C., & Rodahl, K.
- Venue
- Journal of Applied Physiology
- Publisher
- American Physiological Society
- Published
- 1962-01-01
- Volume
- 17
- Issue
- 1
- Pages
- 47-50
- ISSN
- 0161-7567 (ISSN-L)
- 8750-7587
- 1522-1601
- OpenAlex
- W2173304038
- Cited by
- 162
- References
- 0
- FWCI
- 1.41
- Type
- journal article
- Language
- en
- Open access
- closed
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- Issekutz, B., Birkhead, N. C., & Rodahl, K. (1962). Use of respiratory quotients in assessment of aerobic work capacity. Journal of Applied Physiology. https://doi.org/10.1152/jappl.1962.17.1.47
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
