The effect of stroke on motor selectivity for force control in single- and multi-finger force production tasks.
BACKGROUND: The stroke patients have difficulties in both voluntary muscle contraction and individual movements. However, there is a lack of quantitative analysis focusing on decreased finger control in stroke patients. OBJECTIVES: The purpose of the study was to identify the changes in motor select...
| Publicado en: | NeuroRehabilitation Vol. 34; no. 3; pp. 429 - 436 |
|---|---|
| Autores principales: | , , |
| Formato: | equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
2014
|
| 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=103955712&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 103955712 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10538135 3RE jtl: NeuroRehabilitation issn: 10538135 maglogo: N pubinfo: dt: 2014 vid: 34 iid: 3 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 103955712 96353799 10.3233/NRE-141050 NLM24473243 103955712 ppf: 429 ppct: 7 formats: fmt: @attributes: type: P tig: atl: The effect of stroke on motor selectivity for force control in single- and multi-finger force production tasks. aug: au: Kim, Yushin Kim, Woo-Sub Yoon, BumChul affil: Department of Physical Therapy, College of Health Science, Korea University, Jungneung-dong, Sungbuk-gu, Seoul, South Korea sug: subj: Stroke Complications Motor Skills Fingers Human Case Control Studies Descriptive Statistics Two-Way Analysis of Variance One-Way Analysis of Variance Post Hoc Analysis ab: BACKGROUND: The stroke patients have difficulties in both voluntary muscle contraction and individual movements. However, there is a lack of quantitative analysis focusing on decreased finger control in stroke patients. OBJECTIVES: The purpose of the study was to identify the changes in motor selectivity in stroke patients during a finger force production task. METHODS: Fifteen stroke patients and fifteen control subjects were asked to perform maximum voluntary force (MVF) production during single- and multi-finger force tasks. Finger interaction indices such as force independence (FI) and force sharing deviation (FSD) were analyzed using measured individual finger forces. RESULTS: MVF analysis in the impaired hand of stroke patients showed that they produced 31% or 41% lower force than their unimpaired hand or the control hand, respectively. For the finger interaction indices, the stroke patients' impaired hand had lower FI and higher FSD than their unimpaired hand or the normal subjects' hand. CONCLUSION: The lower FI and higher FSD show that stroke patients have a limited ability to produce force independently and to synchronize produced multi-finger force, respectively. These results have a negative impact on the selectivity of their motor control. In terms of rehabilitation, we expect that the finger interaction indices used in the present study can quantify motor selectivity in the damaged central nervous system. pubtype: Academic Journal doctype: equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|