Key result
The control of breathing during exercise likely involves a combination of neurogenic, chemoreflex, and circulatory-coupled processes with considerable system redundancy.
The control of breathing during exercise involves a complex, redundant system of neurogenic, chemoreflex, and circulatory-coupled processes.
Informs exercise hyperpnea management without practice change; leaves precise mechanism contributions unresolved for future study.
Download Free Sample The control of breathing during exercise remains the source of considerable debate. Classical schemes of the exercise hyperpnea have incorporated elements of proportional feed-back from chemoreceptor sites (carotid body and brainstem) and feed-forward neurogenic (central command and muscle reflex) control. However, the precise details of the control process are still not fully resolved, reflecting in part technical and interpretational limitations inherent in isolating putative control mechanisms in the intact exercising human and also the challenges presented by the ventilatory and gas-exchange complexities encountered at work rates which engender a metabolic (lactic) acidosis. Although some combination of neurogenic, chemoreflex, and circulatory-coupled processes are likely to contribute to the control, intriguingly, the overall system appears to evidence considerable redundancy. This, coupled with the lack of appreciable steady-state error signals in the mean levels of art...
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Susan Ward (2014) conducted a review in Exercise hyperpnea. The control of breathing during exercise likely involves a combination of neurogenic, chemoreflex, and circulatory-coupled processes with considerable system redundancy.
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