title: The detection of long-range correlations of operation force and sEMG with multifractal detrended fluctuation analysis.
abstract: This paper explores the application of multifractal detrended fluctuation analysis (MF-DFA) on the nonlinear characteristics of correlation between operation force and surface electromyography (sEMG), which is an applied frontier of human neuromuscular system activity. We established cross-correlation functions between the signal of force and four typical sEMG time-frequency domain index sequences (force-sEMG cross-correlation sequences), and dealt with the sequences with MF-DFA. In addition, we demonstrated that the force-sEMG cross-correlation sequences have strong statistical self-similarity and the fractal characteristic of the signal spectrum is similar to 1/f noise or fractional Brownian motion.
authors.affiliation: National Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Beijing, 100094, China.
authors.forename: Fan
authors.initials: F
authors.lastname: Li
authors.affiliation: School of Aerospace and Materials Engineering, National Defense University, Changsha, 410000, China.
authors.forename: Dongxu
authors.initials: D
authors.lastname: Li
authors.affiliation: National Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Beijing, 100094, China.
authors.forename: Chunhui
authors.initials: C
authors.lastname: Wang
authors.affiliation: National Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Beijing, 100094, China.
authors.forename: Shanguang
authors.initials: S
authors.lastname: Chen
authors.affiliation: General Hospital of Armed Police Forces, Beijing, 100039, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Lv
authors.affiliation: Guanghua School of Management, Peking University, Beijing, 100871, China.
authors.forename: Miao
authors.initials: M
authors.lastname: Wang
mesh_terms: D000328:Adult; D000465:Algorithms; D003198:Computer Simulation; D004576:Electromyography / Q000379:methods*; D017709:Fractals; D006801:Humans; D008297:Male; D008954:Models, Biological; D015233:Models, Statistical; D009119:Muscle Contraction / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013223:Statistics as Topic; D013314:Stress, Mechanical; D055815:Young Adult
keywords: MF-DFA; cross-correlation function; operation force signal; sEMG