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Combined surface electromyography,near-infrared spectroscopy and acceleration recordings of muscle contraction:The effect of motion

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Journal of Innovative Optical Health Sciences 2017年第2期10卷 124-136页

作者： Krista Kauppi Vesa Korhonen Hany Ferdinando mika kallio Teemu Myllyla Department of Medical Technology University of Oulu Oulu90014Finland Department of Diagnostic Radiology.Medical Research Center Oulu University Hospital Research Unit of Medical ImagingPhysics and Technology Faculty of MedicineUniversity of Oulu P.0.Box 50Oulu90029 OYSFinland Health B Wellness Measurements Group Optoelectronics and Measurement Techniques Unit University of Oulu Oulu90014Finland Department of Clinical Neurophysiology Medical Research Center Oulu University Hospital Research Unit of Medical ImagingPhysics and Technology Faculty of MedicineUniversity of Oulu P.0.Box 50Oulu90029 OYSFinland Health Wellness Measurements Group Optoelectronics and Measurement Techniques Unit University of Oulu Oulu90014Finland

Noninvasive techniques,surface electromyography(sEMG)in particular,are being increasingly employed for assessing muscle *** these studies,local oxygen consumption and muscle metabolism are of great *** can be performed noninvasively using optics-based methods such as near-infrared spectroscopy(NIRS).By combining energy con-sumption data provided by NIRS with muscle level activation data from sEMG,we may gain an insight into the metabolic and functional characteristics of muscle ***,muscle mo-tion may induce artifacts into EMG and ***,the inclusion of simultaneous motion measurements using accelerometers(ACMs)enhances possibilities to perceive the effects of motion on NIRS and EMG *** paper reviews the current state of noninvasive EMG and NIRS-based methods used to study muscle *** addition,we built a combined sEMG/NIRS/ACM sensor to perform simultaneous measurements for static and dynamic exercises of a biceps brachii ***,we discuss the effect of muscle motion in response of NIRS and EMG when measured *** on our preliminary studies,both NIRS and EMG supply specific information on muscle activation,but their signal responses also showed similarities with acceleration signals which,in this case,were supposed to be solely sensitive to motions.

关键词： sEMG NIRS accelerometer motion artifacts biceps brachii muscle

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Carpal tunnel syndrome diagnosis: validation of a clinic-based nerve conduction measurement device

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Journal of Biomedical Science and Engineering 2011年第4期4卷 282-288页

作者： Timothy P. Green mika kallio Malcolm R. A. Clarke Pankaj Pathak Veijo Lesonen Uolevi Tolonen 不详

Background: Carpal Tunnel Syndrome (CTS) is the commonest upper limb nerve entrapment syndrome seen in practice. In many centres, nerve conduction studies (NCS) have been adopted as a routine part of the diagnostic process. In the United Kingdom, the time taken to access diagnostic tests has been likened to a “hidden waiting list”, lengthening the time taken for a patient to access treatment. In the current healthcare climate with a centrally driven aim to reduce patient waiting time to a maximum of eighteen weeks, including tests, such waiting is even more unacceptable. Aim. This study was performed in order to evaluate a simple handheld device for quantifying median nerve lesions in CTS. Design of study: A prospective blinded cohort study. Setting: Leicester General Hospital, Carpal Tunnel Service Method: Participants were recruited from the nor-mal referral stream. If the clinical findings were consistent with a diagnosis of CTS, they were for-mally consented to the study in which results from the new handheld device were compared with traditional NCS. Final test group consisted of 63 participants. Results: For the new device the correct positive detection rate for abnormal nerve conduction was 91% (74/81 hands). Of the seven abnormal results not picked up by the new device, four were in asymptomatic hands (positive per cent agree-ment in symptomatic hands 95%). There were no false positives with the new system. (Negative per cent agreement 100%) Conclusion: We conclude that this new device demonstrates a high degree of concordance with currently available traditional NCS. The study suggested ways in which the accuracy could be further improved.

关键词： Carpal Tunnel Syndrome Nerve Conduction Studies Diagnosis Portable

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