Relationship between intensity of toe motion and cerebral activation

A near-infrared spectroscopy study

Masahiro Ishizaka, Kotaro Takeda, Toshinori Shimoi, Hitoshi Maruyama

Research output: Contribution to journalArticle

Abstract

[Purpose] We investigated the relationship between the intensity of toe motion and Δ[Oxy-Hb] in motor cortical areas. [Subjects] Twelve healthy adults (7 females and 5 males: 26.9±5.3 years of age) participated in the study. [Methods] The motor tasks were isometric and isotonic right toe flexion. The participants performed the tasks under two conditions: maximum and moderate effort. We measured the motor cortical activity using NIRS, and the extent and amplitude of the activations were compared between the two conditions for each task. [Results] In the isotonic flexion task, the extent of the activation area and the amplitude of Δ[Oxy-Hb] were dependent on the movement intensity. On the other hand, there was no significant difference between the two conditions in the isometric flexion task. [Conclusion] We clarified that cerebral activation is influenced by the task motion and the participant's effort.

Original languageEnglish
Pages (from-to)165-170
Number of pages6
JournalRigakuryoho Kagaku
Volume27
Issue number2
DOIs
Publication statusPublished - 01-01-2012

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Near-Infrared Spectroscopy
Toes
Motor Cortex
Healthy Volunteers
Motor Activity

All Science Journal Classification (ASJC) codes

  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Ishizaka, Masahiro ; Takeda, Kotaro ; Shimoi, Toshinori ; Maruyama, Hitoshi. / Relationship between intensity of toe motion and cerebral activation : A near-infrared spectroscopy study. In: Rigakuryoho Kagaku. 2012 ; Vol. 27, No. 2. pp. 165-170.
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Relationship between intensity of toe motion and cerebral activation : A near-infrared spectroscopy study. / Ishizaka, Masahiro; Takeda, Kotaro; Shimoi, Toshinori; Maruyama, Hitoshi.

In: Rigakuryoho Kagaku, Vol. 27, No. 2, 01.01.2012, p. 165-170.

Research output: Contribution to journalArticle

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