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Hemodynamic Response of the Supplementary Motor Area during Locomotor Tasks with Upright versus Horizontal Postures in Humans
Joint Authors
Obayashi, Shigeru
Nakajima, Katsumi
Hara, Yukihiro
Yozu, Arito
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-06-19
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
To understand cortical mechanisms related to truncal posture control during human locomotion, we investigated hemodynamic responses in the supplementary motor area (SMA) with quadrupedal and bipedal gaits using functional near-infrared spectroscopy in 10 healthy adults.
The subjects performed three locomotor tasks where the degree of postural instability varied biomechanically, namely, hand-knee quadrupedal crawling (HKQuad task), upright quadrupedalism using bilateral Lofstrand crutches (UpQuad task), and typical upright bipedalism (UpBi task), on a treadmill.
We measured the concentration of oxygenated hemoglobin (oxy-Hb) during the tasks.
The oxy-Hb significantly decreased in the SMA during the HKQuad task, whereas it increased during the UpQuad task.
No significant responses were observed during the UpBi task.
Based on the degree of oxy-Hb responses, we ranked these locomotor tasks as UpQuad > UpBi > HKQuad.
The order of the different tasks did not correspond with postural instability of the tasks.
However, qualitative inspection of oxy-Hb time courses showed that oxy-Hb waveform patterns differed between upright posture tasks (peak-plateau-trough pattern for the UpQuad and UpBi tasks) and horizontal posture task (downhill pattern for the HKQuad task).
Thus, the SMA may contribute to the control of truncal posture accompanying locomotor movements in humans.
American Psychological Association (APA)
Yozu, Arito& Obayashi, Shigeru& Nakajima, Katsumi& Hara, Yukihiro. 2016. Hemodynamic Response of the Supplementary Motor Area during Locomotor Tasks with Upright versus Horizontal Postures in Humans. Neural Plasticity،Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1113212
Modern Language Association (MLA)
Yozu, Arito…[et al.]. Hemodynamic Response of the Supplementary Motor Area during Locomotor Tasks with Upright versus Horizontal Postures in Humans. Neural Plasticity No. 2016 (2016), pp.1-8.
https://search.emarefa.net/detail/BIM-1113212
American Medical Association (AMA)
Yozu, Arito& Obayashi, Shigeru& Nakajima, Katsumi& Hara, Yukihiro. Hemodynamic Response of the Supplementary Motor Area during Locomotor Tasks with Upright versus Horizontal Postures in Humans. Neural Plasticity. 2016. Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1113212
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1113212