The Scientific World Journal / 2014 / Article / Tab 1

Research Article

Identification of the Causative Disease of Intermittent Claudication through Walking Motion Analysis: Feature Analysis and Differentiation

Table 1

Extracted features for differentiating among normal, PAD, L5 and L4, and which features are used in the presented SVM classifier-based methodology. The first row shows the target class for the binary classifier: for example, “normal” means the classifier for distinguishing the normal group from the other groups. “+” denotes the selected features and “−” the nonselected features for each classifier.

Target group for classificationNormalPADL5L4

Mean ankle angle++++
Knee angle at the start of the stance phase+
Amplitude of the femur angle+
Maximally relaxed muscle length of the gastrocnemius muscle from the reference model+++
Maximally contracted muscle length of the gastrocnemius muscle from the reference model++++
Range of motion of the gastrocnemius muscle from the reference model+
Maximally relaxed muscle length of the quadriceps muscle from the reference model+
Maximally contracted muscle length of the quadriceps muscle from the reference model+
Range of motion of the quadriceps muscle from the reference model+++

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.