Format

Send to

Choose Destination
Muscle Nerve. 2012 Aug;46(2):257-63. doi: 10.1002/mus.23307.

Utilizing a handheld electrode array for localized muscle impedance measurements.

Author information

1
Departments of Neurology and Orthopedics, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, Massachusetts 02215, USA.

Abstract

INTRODUCTION:

Electrical impedance myography (EIM) is a noninvasive technique used for assessment of muscle health in which a high-frequency, low-amplitude electric current is applied to the skin overlying a muscle, and the resulting surface voltage is measured. We have previously used adhesive electrodes, application of which is inconvenient. We present data using a handheld electrode array (HEA) that we devised to expedite the EIM procedure in a clinical setting.

METHODS:

Thirty-four healthy volunteers and 24 radiculopathy subjects underwent EIM testing using the HEA and adhesive electrodes.

RESULTS:

The HEA was shown to have good test-retest reproducibility, with intraclass correlation coefficients as high as 0.99. HEA data correlated strongly with data from adhesive electrodes, ρ = 0.85 in healthy volunteers (P < 0.001) and ρ = 0.75 in radiculopathy subjects (P < 0.001).

CONCLUSIONS:

These data support the potential use of a handheld array for performing rapid localized surface impedance measurements.

PMID:
22806375
PMCID:
PMC3400114
DOI:
10.1002/mus.23307
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Wiley Icon for PubMed Central
Loading ...
Support Center