Nonlinear Analysis of Electromiography Time Series as A Diagnostic Tool for Low Back Pain

Paul S. Sung, Cleveland State University
Ulrich Zurcher, Cleveland State University
Miron Kaufman, Cleveland State University


A number of studies have evaluated lumbar spinal muscle fatigue using the electromyography (EMG) signal. However, back muscle fatigue studies do not consistently report endurance levels for patients with or without low back pain (LBP). In this case report, we investigated a nonlinear analysis of EMG time series that characterizes their complexity.