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Sensors 2015, 15(9), 23667-23683;

Commercial Motion Sensor Based Low-Cost and Convenient Interactive Treadmill

DGIST, Department of Robotics Engineering, 333 Techno Jungang-daero, Hyeonpung-Myeon, Dalseong-gun, Daegu 42988, South Korea
National Institutes of Health, Rehabilitation Medicine Department, 10 Center Drive, MSC-1604, Bethesda, MD 20892, USA
Korea Advanced Institute of Science and Technology, Department of Mechanical Engineering, 291 Daehakro, Yuseong-gu, Daejeon 34141, South Korea
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in “Kim, J.; Gravunder, A.; Stanley, C.J.; Park, H.-S. Low-cost implementation of a self-paced treadmill by using a commercial depth sensor. In Proceedings of the 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Osaka, Japan, 3–7 July 2013; pp. 874–877”.
Academic Editor: Ing. Andreas König
Received: 30 June 2015 / Revised: 18 August 2015 / Accepted: 3 September 2015 / Published: 17 September 2015
(This article belongs to the Special Issue Integrated Intelligent Sensory Systems with Self-x Capabilities)
PDF [3148 KB, uploaded 17 September 2015]


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. View Full-Text
Keywords: motion sensor; interactive treadmill; low-cost; convenience; self-paced treadmill; treadmill-on-demand; walking; locomotion motion sensor; interactive treadmill; low-cost; convenience; self-paced treadmill; treadmill-on-demand; walking; locomotion

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Kim, J.; Gravunder, A.; Park, H.-S. Commercial Motion Sensor Based Low-Cost and Convenient Interactive Treadmill. Sensors 2015, 15, 23667-23683.

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