The neural influence on the occurrence of locomotor-respiratory coordination.
This study focused on the neurogenic mechanisms of coordination between locomotor and respiratory rhythms. The aim of the present study was to investigate the influence of peripheral neurogenic drive from moving limbs, and the level of consciousness, on locomotor-respiratory coordination. Subjects performed movement for 20 min in a supine position using a bicycle ergometer. The movement comprised three types of leg movements: active (loadless) movement, passive movement while awake and passive movement during sleep. We found no difference between active and passive movement in the degree of coordination. However, the degree of coordination during sleep was significantly lower than that while awake (p<0.05). We conclude that peripheral neurogenic drive from moving limbs is able to generate locomotor-respiratory coordination, and that the level of consciousness may influence the degree of coordination.
Iwamoto
Erika
E
Graduate School of Health Sciences, Hiroshima University, Japan. iwamoto.erika@b.mbox.nagoya-u.ac.jp
Taito
Shunsuke
S
Kawae
Toshihiro
T
Sekikawa
Kiyokazu
K
Takahashi
Makoto
M
Inamizu
Tsutomu
T
D000328:Adult; D000403:Airway Resistance / Q000502:physiology; D000704:Analysis of Variance; D001784:Blood Gas Analysis / Q000379:methods; D002245:Carbon Dioxide / Q000378:metabolism; D005260:Female; D006801:Humans; D007717:Knee / Q000502:physiology; D008124:Locomotion / Q000502:physiology*; D008297:Male; D010101:Oxygen Consumption / Q000502:physiology; D012119:Respiration; D012890:Sleep / Q000502:physiology; D014851:Wakefulness / Q000502:physiology; D055815:Young Adult
D002245:Carbon Dioxide