Analysis of spatial temporal plantar pressure pattern during gait in Parkinson's disease.
Spatial temporal plantar pressure patterns measured with sheet-shaped pressure sensor were investigated to extract features of gait in Parkinson's disease. Both six subjects of Parkinson's disease (PD) and elderly fourteen normal control subjects were asked to execute usual walking on the pressure sensor sheets. Candidate features were step length, step time, gait velocity and transition of center of pressure to foot axis direction. The step length and gait velocity were smaller in PD subjects than those in normal subjects. Time of step cycle in three PD subjects were longer than that in normal subjects while the times of other PD subjects were similar to those of control subjects. The length from heel contact to toe off within one footprint was small in the subjects with short step length. Such possibility was indicated that Parkinson's disease in gait could be separated from normal subjects by these features.
Okuno
Ryuhei
R
Department of Electrical and Electronic Engineering, Setsunan University, Ikeda-Nakamachi 17-8, Neyagawa, Osaka 572-8503, Japan. okuno@ele.setsunan.ac.jp
Fujimoto
Satoshi
S
Akazawa
Jun
J
Yokoe
Masaru
M
Sakoda
Saburo
S
Akazawa
Kenzo
K
D000368:Aged; D000369:Aged, 80 and over; D001698:Biomedical Engineering; D055592:Biophysical Phenomena; D016022:Case-Control Studies; D003627:Data Interpretation, Statistical; D003878:Dermatoglyphics; D005528:Foot; D005684:Gait / Q000502:physiology*; D006801:Humans; D008875:Middle Aged; D010300:Parkinson Disease / Q000503:physiopathology*; D011312:Pressure; D025341:Principal Component Analysis; D016138:Walking / Q000502:physiology