Developing Normal Turns–Amplitude Clouds for Upper and Lower Limbs

    loading  Checking for direct PDF access through Ovid

Abstract

Purpose:

Turns and amplitude analysis (T&A) is a frequently used method for automatic EMG interference pattern analysis. The T&A normal values have only been developed for a limited number of muscles. Our objective was to obtain normal T&A clouds for upper and lower extremity muscles for which no normal values exist in the literature.

Methods:

The T&A normative data using concentric needle electrodes were obtained from 68 men and 56 women aged 20 to 60 years.

Results:

Normal upper and lower extremity T&A clouds were obtained and presented in this article.

Conclusion:

The T&A normal values collected in this study maybe used to detect neurogenic and myopathic abnormalities in men and women at low-to-moderate muscle contractions. The effect of turns–amplitude data obtained at high force level of muscle contraction and its potential to falsely show neurogenic abnormalities are discussed.

Related Topics

    loading  Loading Related Articles