Excitability of spinal neural function during several motor imagery tasks involving isometric opponens pollicis activity.
BACKGROUND: It is unclear whether mental simulation without actual muscle contraction associated with actual motion can increase the excitability of the spinal neural function. OBJECTIVE: To determine the best method for mental simulation without actual muscle contraction, we analyzed the F-wave of...
| Publicado en: | NeuroRehabilitation Vol. 33; no. 1; pp. 171 - 177 |
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| Autores principales: | , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
2013
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104220619&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104220619 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10538135 3RE jtl: NeuroRehabilitation issn: 10538135 maglogo: N pubinfo: dt: 2013 vid: 33 iid: 1 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 104220619 90063718 10.3233/NRE-130942 NLM23949030 104220619 ppf: 171 ppct: 6 formats: fmt: @attributes: type: P tig: atl: Excitability of spinal neural function during several motor imagery tasks involving isometric opponens pollicis activity. aug: au: Suzuki, Toshiaki Bunno, Yoshibumi Onigata, Chieko Tani, Makiko Uragami, Sayuri affil: Graduate School of Health Sciences, Graduate School of Kansai University of Health Sciences, Osaka, Japan sug: subj: Motor Skills Guided Imagery Spine Physiology Isometric Contraction Thumb Task Performance and Analysis Human Grip Strength Adult Descriptive Statistics Male Female Adult: 19-44 years Male Female ab: BACKGROUND: It is unclear whether mental simulation without actual muscle contraction associated with actual motion can increase the excitability of the spinal neural function. OBJECTIVE: To determine the best method for mental simulation without actual muscle contraction, we analyzed the F-wave of thenar muscles after stimulating the median nerve by motor imagery whilst holding the sensor of a pinch meter between the thumb and index finger and without holding the sensor. METHODS: Healthy volunteers (n = 11; mean age, 34 years) participated in this study after providing informed consent. We examined the F-wave of the left thenar muscles after stimulating the left median nerve at the wrist at rest and under holding and motor imagery conditions. For the motor imagery condition, the subjects were asked to establish 50% maximal voluntary contraction (MVC) of isometric contraction while holding the sensor between the thumb and index finger (motor imagery with the sensor condition) and without holding the sensor on another day (motor imagery without the sensor condition). RESULTS: The persistence and amplitude ratio of F/M during motor imagery with or without the sensor was better than that during relaxation. In particular, this ratio was significantly higher under the with sensor condition than under the without sensor condition. CONCLUSION: Movement preparation for a motor imagery task involving 50% MVC isometric contraction of the opponens pollicis is important. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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