Cardiac, respiratory, and locomotor coordination during walking in humans

Folia primatologica; international journal of primatology
Kyuichi NiizekiY Miyamoto

Abstract

Interactions between locomotor, respiratory, and cardiac rhythms were investigated in human subjects (n = 11) walking on a treadmill. Investigation of the phase relationship between heart rate and gait signals revealed that cardiac rhythms were entrained to locomotor rhythms when both frequencies were close to an integer ratio. Coherence spectra were estimated between heartbeat fluctuation, respiratory, and gait signals, and their magnitudes were evaluated. The results suggest that the respiratory-induced fluctuation in heartbeat would vary depending on the strength of the cardiolocomotor coupling. The synchronization tends to occur for one or two specific phases in an individual subject, but there was some variation among subjects. When the subjects voluntarily synchronized their cadence with the cardiac rhythm, the heart rate and blood pressure varied depending on the phase lag within a cardiac cycle. The coordination of locomotor and cardiac rhythms is discussed.

Citations

Sep 21, 2002·Autonomic Neuroscience : Basic & Clinical·Fabrice Dosseville, Jacques LaRue
Jan 2, 2003·Perceptual and Motor Skills·Jeanette Wasserstein
Apr 17, 2002·The Journal of Physiology·R J A WilsonJ E Remmers
Apr 10, 2010·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Tetsuya KimuraToshio Moritani
Apr 19, 2003·BMC Physiology·Peter Van LeeuwenDietrich H W Grönemeyer
Feb 27, 2009·Neural Networks : the Official Journal of the International Neural Network Society·A Revel, P Andry
Sep 25, 2004·American Journal of Physiology. Heart and Circulatory Physiology·O GiladS Akselrod
Nov 6, 2004·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Kyuichi Niizeki
Jan 2, 2003·Perceptual and Motor Skills·Fabrice DossevilleDamien Davenne
Apr 13, 1999·The American Journal of Physiology·K Niizeki, Y Miyamoto

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