Possible Involvement of Peripheral Chemoreceptor Mechanism in Bradycardia Observed During Breath Holding with Supramaximal Exercise
It is often seen that the breath is held during strenous exercise such as 100m or 200m dash. The characteristic features in this maneuver are that exercise intensity is very vigorous and duration is very short. To our knowledge, no detailed observation has been conducted on the cardiopulmonary responses during this particular physical performance.
KeywordsCarotid Body Breath Holding Breaking Point Peripheral Chemoreceptor Supramaximal Exercise
Unable to display preview. Download preview PDF.
- Band, D. M., and Linton, R. A. F., 1986, The effect of potassium on carotid body chemoreceptor discharge in the anaesthetized cat, J. Physiol., 381:39.Google Scholar
- Band, D. M., and Linton, R. A. F., 1987, The interaction of hypoxia and K+ on the carotid chemoreceptor discharge in anaesthetized cats, J. Physiol., 394:65p.Google Scholar
- Daly, M. D., and Scott, M. J., 1963, The cardiovascular responses to stimulation of the carotid body chemoreceptors in the dog, J. Physiol., 165:179.Google Scholar
- Gross, P. M., Whipp, B. J., Davidson, J. T., Koyal, S. N., and Wasserman, K., 1976, Role of the carotid bodies in the heart rate response to breath holding in man, J. Appl. Physiol., 41:336.Google Scholar
- Jones, D. R., and Purves, M. J., 1974, The carotid body in the duck and the consequences of its denervation upon the cardiac response to immersion, J. Physiol., 211:279.Google Scholar
- Kontos, H. A., Vetrovec, G. W., and Richardson, D. W., 1970, Role of carotid chemoreceptors in circulatory response to hypoxia in dogs, J. Appl. Physiol., 28:561.Google Scholar
- Linton, R. A. F., Lim, M., Wolff, C. B., Wilmshurst, P., and Band, D. M., 1984, Arterial plasma potassium measured continuously during exercise in man, Clin. Sci., 67:427.Google Scholar