title: A method for measuring instantaneous treadmill speed.
abstract: This paper presents a new method for measuring instantaneous treadmill speed. The method consists of two parts: (1) a motion-capture system and reflective squares placed directly on the treadmill belt, and (2) an algorithm for estimating belt speed and distance traveled from the measured positions of the reflective squares. The method was tested with a single subject walking on an instrumented treadmill. The method is easy to set up and results in an accurate estimate of treadmill speed that is conveniently synchronized with the output of the motion-capture system.
authors.affiliation: Department of Veterans Affairs, Puget Sound Health Care System, Seattle, WA 98108, USA; Department of Mechanical Engineering, University of Washington, Seattle, WA 98105, USA. Electronic address: nathanmolson@gmail.com.
authors.forename: Nathan M
authors.initials: NM
authors.lastname: Olson
authors.affiliation: Department of Veterans Affairs, Puget Sound Health Care System, Seattle, WA 98108, USA; Department of Mechanical Engineering, University of Washington, Seattle, WA 98105, USA. Electronic address: gklute@u.washington.edu.
authors.forename: Glenn K
authors.initials: GK
authors.lastname: Klute
mesh_terms: D000465:Algorithms; D001696:Biomechanical Phenomena; D005080:Exercise Test / Q000295:instrumentation*; D017079:Exercise Tolerance / Q000502:physiology*; D006801:Humans; D009038:Motion; D016138:Walking / Q000502:physiology*
keywords: Estimation algorithm; Treadmill instrumentation; Walking speed