title: Commercial Motion Sensor Based Low-Cost and Convenient Interactive Treadmill.
abstract: Interactive treadmills were developed to improve the simulation of overground walking when compared to conventional treadmills. However, currently available interactive treadmills are expensive and inconvenient, which limits their use. We propose a low-cost and convenient version of the interactive treadmill that does not require expensive equipment and a complicated setup. As a substitute for high-cost sensors, such as motion capture systems, a low-cost motion sensor was used to recognize the subject's intention for speed changing. Moreover, the sensor enables the subject to make a convenient and safe stop using gesture recognition. For further cost reduction, the novel interactive treadmill was based on an inexpensive treadmill platform and a novel high-level speed control scheme was applied to maximize performance for simulating overground walking. Pilot tests with ten healthy subjects were conducted and results demonstrated that the proposed treadmill achieves similar performance to a typical, costly, interactive treadmill that contains a motion capture system and an instrumented treadmill, while providing a convenient and safe method for stopping.
authors.affiliation: DGIST, Department of Robotics Engineering, 333 Techno Jungang-daero, Hyeonpung-Myeon, Dalseong-gun, Daegu 42988, South Korea. jhkim@dgist.ac.kr.
authors.forename: Jonghyun
authors.initials: J
authors.lastname: Kim
authors.affiliation: National Institutes of Health, Rehabilitation Medicine Department, 10 Center Drive, MSC-1604, Bethesda, MD 20892, USA. andrew.gravunder@nih.gov.
authors.forename: Andrew
authors.initials: A
authors.lastname: Gravunder
authors.affiliation: Korea Advanced Institute of Science and Technology, Department of Mechanical Engineering, 291 Daehakro, Yuseong-gu, Daejeon 34141, South Korea. hyungspark@kaist.ac.kr.
authors.forename: Hyung-Soon
authors.initials: HS
authors.lastname: Park
mesh_terms: D000054:Acceleration; D001676:Biofeedback, Psychology; D003365:Costs and Cost Analysis; D005080:Exercise Test / Q000191:economics* / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008297:Male; D009038:Motion; D011795:Surveys and Questionnaires; D016138:Walking
keywords: convenience; interactive treadmill; locomotion; low-cost; motion sensor; self-paced treadmill; treadmill-on-demand; walking