Mechanomyography as an access pathway: corporeal contraindications.
Purpose. The purpose of this study is to delineate the impairments of body functions and structures which specifically inhibit mechanomyography (MMG)-based switch control as an alternative access pathway. Method. Seven individuals with severe physical disabilities and varied diagnoses of neuromuscul...
| Publicado en: | Disability & Rehabilitation: Assistive Technology Vol. 6; no. 6; pp. 552 - 564 |
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| Autores principales: | , |
| Formato: | equations & formulas research tables/charts tracings Journal Article |
| Publicado: |
Taylor & Francis Ltd
Nov2011
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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=104804794&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104804794 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 17483107 1X04 jtl: Disability & Rehabilitation: Assistive Technology issn: 17483107 maglogo: Y pubinfo: dt: Nov2011 vid: 6 iid: 6 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 104804794 2011166743 10.3109/17483107.2010.541323 NLM21189058 104804794 ppf: 552 ppct: 12 formats: fmt: @attributes: type: P tig: atl: Mechanomyography as an access pathway: corporeal contraindications. aug: au: Alves, Natasha Chau, Tom affil: Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada sug: subj: Myography Adolescence Adult Aged Assistive Technology Devices Case Studies Child Communication Aids for Persons with Disabilities Persons with Disabilities Equipment Design Female Human Male Outcomes (Health Care) Qualitative Studies Semi-Structured Interview Adolescent: 13-18 years Adult: 19-44 years Aged: 65+ years Child: 6-12 years Female Male ab: Purpose. The purpose of this study is to delineate the impairments of body functions and structures which specifically inhibit mechanomyography (MMG)-based switch control as an alternative access pathway. Method. Seven individuals with severe physical disabilities and varied diagnoses of neuromuscular or neurological conditions tested a MMG switch. A semi-structured protocol was used to gather quantitative and qualitative indications of the switch's performance, and descriptive perceptions of the participants and their care givers. Results. The participants controlled the switch by contracting muscles of their forehead, forearm or shoulder. Body functions and structures that negatively affect the signal-to-noise ratio (SNR) of the recorded MMG signal included involuntary dystonic movement, impaired muscle control, atrophied muscles, muscle spasticity and involuntary activity of neighbouring muscles. Conclusions. The MMG switch is strongly recommended where the muscle site and its control are intact and signal artefact is minimal. Its viability when muscle activity at the access site may be confounded by signal artefact is dependent on the strength of the voluntary muscle contraction relative to that of artefacts such as spastic contractions, involuntary dystonic movements, muscle spasms and physiological vibrations. Neurological conditions, such as spasticity, that compromise the user's ability to voluntarily contract or suppress muscle contractions may be considered contraindications to MMG-based access. pubtype: Academic Journal doctype: equations & formulas research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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