Learning to walk: a graduate course.  Although you might have mastered the fundamentals decades ago, a little retraining can correct some harmful habits.
D005684:Gait / Q000502:physiology; D006801:Humans; D009140:Musculoskeletal Diseases / Q000503:physiopathology; D004856:Postural Balance / Q000502:physiology; D011187:Posture / Q000502:physiology; D012775:Shoes; D016138:Walking / Q000502:physiology*