The Influence of Hypercapnic Hyperpnea on the Interaction Between Breathing and Finger Tracking Movements in Humans
Numerous studies on entrainment of breathing to simultaneous limb movements, for instance walking, running, cycling, or finger tapping, exclusively referred to effects of the limb movements on breathing1,2,5,6,10,17. None of them considered effects of breathing on the limb movement which are much less obvious than movement-induced changes in breathing rhythm. In a previous study on finger tracking movements we could show that both influences of finger movements on the respiratory rhythm and breathing influences on the finger movements do exist13. The effect of breathing on the tracking movement consisted in more precise tracking in mid-inspiration and mid-expiration and greater tracking errors at the respiratory phase-transitions. Tracking movements influenced the respiratory rhythm by shortening the coinciding inspiration or expiration, particularly when they were started during inspiration.
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