Innervation zone shift with changes in joint angle in the brachial biceps

Martin, Sean P.; MacIsaac, Dawn

doi:10.1016/j.jelekin.2005.06.010

Cited by 54 publications

(46 citation statements)

References 9 publications

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“…Although, the distribution of IZs has been reported for several human muscles [67,69,70], general distributions of IZs are not necessarily valid for all individuals because of a large variability in the location of major IZs within and between subjects [70]. Additionally, a shift in IZs can occur with dynamic changes in joint angle [71] and even in static conditions when isometric contraction level is increased [72]. Muscle undergoes substantial three-dimensional changes in its geometry, especially during dynamic contractions, and thus sEMG electrodes are shifted with respect to the underlying muscle fibers and IZs [73].…”

Section: Placement Of Electrodesmentioning

confidence: 99%

Current state of digital signal processing in myoelectric interfaces and related applications

Hakonen

Piitulainen

Visala

2015

Biomedical Signal Processing and Control

255

185

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a b s t r a c tThis review discusses the critical issues and recommended practices from the perspective of myoelectric interfaces. The major benefits and challenges of myoelectric interfaces are evaluated. The article aims to fill gaps left by previous reviews and identify avenues for future research. Recommendations are given, for example, for electrode placement, sampling rate, segmentation, and classifiers. Four groups of applications where myoelectric interfaces have been adopted are identified: assistive technology, rehabilitation technology, input devices, and silent speech interfaces. The state-of-the-art applications in each of these groups are presented.

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Section: Placement Of Electrodesmentioning

confidence: 99%

Current state of digital signal processing in myoelectric interfaces and related applications

Hakonen

Piitulainen

Visala

2015

Biomedical Signal Processing and Control

255

185

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“…Subject NNS, see figure 4). On the other hand, the location of the innervation-zone relative to the supra adjacent skin can be displaced from 5 to 30 mm as a result of elbow flexion (Martin & MacIsaac, 2006). In our study this factor was controlled by fixing the elbow position at 170º of flexion.…”

Section: Discussionmentioning

confidence: 84%

Biceps Brachii Muscle Innervation Zone Location in Healthy Subjects Using High-Density Surface Electromyography

2011

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. Biceps brachii muscle innervation zone location in healthy subjects using high-density surface electromyography. Int. J. Morphol., 29(2):347-352, 2011. SUMMARY:Among the sequelae of central nervous system injury is spasticity which is difficult to manage in rehabilitation. Current treatments consider the administration of the botulinum toxin. However, results have proved highly variable in terms of effectiveness, attributable to the distance between the injection site and the innervations-zone (IZ). High Density sEMG (HDsEMG) has been used to gather information about muscle physiology and for location of the IZ. The aim of this study was to characterize the IZ of the biceps brachii muscle in healthy subjects during isometric contraction. We assessed the biceps brachii muscle of twenty healthy subjects (n=20) using a 64 surface electrodes matrix. The average location of the IZ was 34% distal to the line between the cubital fossa and the anterior acromion.

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“…Signals collected by the electrode were processed by a Prima EMG16 multi-channel acquisition system described by (Martin and MacIsaac, 2006) with differential gains between 1000 and 10,000. Seven channels of single-differential sEMG were then sent to the computer for digital storage using a National Instruments DAQ-6024E PCMCIA data acquisition card sampling at 1024 Hz.…”

Section: Data Acquisitionmentioning

confidence: 99%

EMG-based muscle fatigue assessment during dynamic contractions using principal component analysis

Rogers

MacIsaac

2011

Journal of Electromyography and Kinesiology

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Innervation zone shift with changes in joint angle in the brachial biceps

Cited by 54 publications

References 9 publications

Current state of digital signal processing in myoelectric interfaces and related applications

Current state of digital signal processing in myoelectric interfaces and related applications

Biceps Brachii Muscle Innervation Zone Location in Healthy Subjects Using High-Density Surface Electromyography

EMG-based muscle fatigue assessment during dynamic contractions using principal component analysis

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