Observation of muscle activation in relationship to digit force production during a precision pinch tracking task

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dc.contributor.advisor Abraham , Lawrence D .
dc.contributor.advisor Spirduso , Waneen Wyrick
dc.creator Hamilton , Landon Douglas
dc.date.accessioned 2011 -02 -15T19 :11 :36Z
dc.date.accessioned 2011 -02 -15T19 :11 :45Z
dc.date.accessioned 2014 -02 -19T22 :55 :33Z
dc.date.available 2011 -02 -15T19 :11 :36Z
dc.date.available 2011 -02 -15T19 :11 :45Z
dc.date.available 2014 -02 -19T22 :55 :33Z
dc.date.created 2010 -12
dc.date.issued 2011 -02 -15
dc.date.submitted December 2010
dc.identifier.uri http : / /hdl .handle .net /2152 /ETD -UT -2010 -12 -2074
dc.description.abstract The primary purpose of this study was to observe the relationship between muscle activation of the right hand with the force produced at the fingertips in an isometric precision pinch tracking task . Thirty right -handed subjects , 15 males and 15 females , with a mean age 23 .5 (SD 3 .5 ) years , free from any neurological disorder or physical ailment , had a pair of electromyography (EMG ) electrodes placed over the first dorsal interosseous (FDI ) muscle , which acts on the index finger , while performing a pinch force tracking task scaled to 20 % maximum voluntary contraction (MVC ) . The tracking task was chosen because it created a continuously increasing force application to 20 % MVC and then decreasing force release from 20 % MVC at a prescribed rate in both cases of 6 .66 % MVC force per second . In addition to showing increases in EMG activation of the FDI with increases in force , the results revealed that muscle activation for a given force level was generally greater for force application than for force release . This may be due dynamics of muscle contraction or to patterns of multiple muscle coordination .
dc.format.mimetype application /pdf
dc.language.iso eng
dc.subject Precision pinch
dc.subject Precision grip
dc.subject Isometric force
dc.subject Finger force
dc.subject EMG
dc.subject Force application
dc.subject Force release
dc.title Observation of muscle activation in relationship to digit force production during a precision pinch tracking task
dc.description.department Kinesiology and Health Education
dc.type.genre thesis *
dc.type.material text *
thesis.degree.name Master of Arts
thesis.degree.level Masters
thesis.degree.discipline Kinesiology
thesis.degree.grantor University of Texas at Austin
thesis.degree.department Kinesiology and Health Education
dc.date.updated 2011 -02 -15T19 :11 :46Z

Citation

Observation of muscle activation in relationship to digit force production during a precision pinch tracking task. Master's thesis, University of Texas at Austin. Available electronically from http : / /hdl .handle .net /2152 /ETD -UT -2010 -12 -2074 .

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