- A novel device for improving marker placement accuracy "Repeatability of marker placement has been acknowledged as a major factor affecting the reliability of multi-segment foot models. A novel device is proposed that is intended to reduce marker placement error and its effect on the reliability of inter-segmental foot kinematic data is investigated."
- Analysis of measurement performance in optical motion capturing A protocol for precise and fast laboratory setup evaluation
- Cane-assisted gait biomechanics "Cane-Assisted Gait Biomechanics and Electromyography After Total Hip Arthroplasty"
- New three-dimensional motion capture system based on video "Design and evaluation of a new three-dimensional motion capture system based on video"
- Fish-eye lens Calibration "Intrinsic parameter calibration procedure for a (high-distortion) fish-eye lens camera with distortion model and accuracy estimation"
- GaitRite walkway system "Reliability of the GAITRite walkway system for the quantification of temporo-spatial parameters of gait in young and older people"
"Validity and reliability as scientific quality criteria have to be considered when using motion capture systems for research purposes. System characteristics such as accuracy and precision are often not addressed in scientific reports of human motion analysis studies, even though literature and standards recommend individual laboratory setup evaluation. One reason could be due to the lack of a simple and practical method to evaluate system performance. We developed a protocol for practical laboratory setup evaluation in context of usability in human movement analysis."
Massachusetts General Hospital, Biomotion Laboratory
Gait Analysis Using a Wireless Shoe-Integrated Sensor System
- Wireless Shoe-Integrated Sensor System: GaitShoe "This paper describes a wireless wearable system capable of measuring many parameters relevant to gait analysis, and developed to provide quantitative analysis of gait outside of the confines of the traditional motion laboratory. The extensive sensor suite includes three orthogonal accelerometers, and three orthogonal gyroscopes, four force sensors, two bi-directional bend sensors, two dynamic pressure sensors, as well as electric field height sensors. The "GaitShoe" was built to be worn on any athletic shoe, without interfering with gait, and was designed to collect data unobtrusively, in any environment, and over long periods of time. The calibrated sensor outputs were analyzed and validated with results obtained simultaneously from The Massachusetts General Hospital Biomotion Lab during subject testing. The GaitShoe proved highly capable of detecting heel strike and toe off, as well as estimating orientation and position of the subject."