Abstract
The exertion of stairclimbing has been studied in 10 normal young men, 10 healthy middle-aged men, and 10 middle-aged men with chronic bronchitis. Subjects climbed a staircase with a total vertical ascent of 40.8 m. They were allowed to adopt the most comfortable pattern of ascent, the patients having to stop at intervales for rest pauses. Work rate was determined by timing the raising body weight over measured sections of the staircase. Perception of exertion estimated with a numerical scale, heart rate, and increase of blood lactate concentration were closely similar in all three groups at the top of the staircase. In the patients, average power output was directly dependent on lung function, as indicated by the forced expired volume in 1 second. Stairclimbing offers a simple way of studying a patient's spontaneous activity pattern in a 'real life' environment. Studies of the kind described here could usefully complement formal exercise testing in the laboratory.
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Selected References
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- CAMPBELL E. J., HOWELL J. B. Rebreathing method for measurement of mixed venous PCO2. Br Med J. 1962 Sep 8;2(5305):630–633. doi: 10.1136/bmj.2.5305.630. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Davies C. T. Human power output in exercise of short duration in relation to body size and composition. Ergonomics. 1971 Mar;14(2):245–256. doi: 10.1080/00140137108931241. [DOI] [PubMed] [Google Scholar]
- Edwards R. H., Melcher A., Hesser C. M., Wigertz O., Ekelund L. G. Physiological correlates of perceived exertion in continuous and intermittent exercise with the same average power output. Eur J Clin Invest. 1972 Jan;2(2):108–114. doi: 10.1111/j.1365-2362.1972.tb00578.x. [DOI] [PubMed] [Google Scholar]
- Edwards R. H. Peripheral factors influencing effort tolerance in patients with chronic obstructive bronchitis. Scand J Respir Dis Suppl. 1971;77:107–111. [PubMed] [Google Scholar]
- Margaria R., Aghemo P., Rovelli E. Measurement of muscular power (anaerobic) in man. J Appl Physiol. 1966 Sep;21(5):1662–1664. doi: 10.1152/jappl.1966.21.5.1662. [DOI] [PubMed] [Google Scholar]
- McGavin C. R., Gupta S. P., McHardy G. J. Twelve-minute walking test for assessing disability in chronic bronchitis. Br Med J. 1976 Apr 3;1(6013):822–823. doi: 10.1136/bmj.1.6013.822. [DOI] [PMC free article] [PubMed] [Google Scholar]
- PUGH L. G. Muscular exercise on Mount Everest. J Physiol. 1958 Apr 30;141(2):233–261. doi: 10.1113/jphysiol.1958.sp005970. [DOI] [PMC free article] [PubMed] [Google Scholar]