Purpose: The ability to adapt walking is important for safe ambulation. Assessments of impairments in walking adaptability with the Interactive Walkway may aid in the development of individualized... Show morePurpose: The ability to adapt walking is important for safe ambulation. Assessments of impairments in walking adaptability with the Interactive Walkway may aid in the development of individualized therapy strategies of stroke patients. The Interactive Walkway is an overground walkway with Kinect v2 sensors for a markerless registration of full-body kinematics, which can be augmented with (gait-dependent) visual context to assess walking adaptability. This study aims to evaluate the potential of the Interactive Walkway as a new technology for assessing walking adaptability in stroke patients. Materials and methods: 30 stroke patients and 30 controls performed clinical tests, quantitative gait assessments and various walking-adaptability tasks on the Interactive Walkway. Outcome measures were compared between stroke patients and controls to examine known-groups validity. Pearson's correlation coefficients were calculated to assess the relationship between walking-adaptability outcomes and commonly used clinical test scores of walking ability and spatiotemporal gait parameters of unconstrained walking. Results: Good known-groups validity for walking-adaptability outcomes was demonstrated. In addition, the vast majority of walking-adaptability outcomes did not or only moderately correlate with clinical test scores of walking ability and unconstrained walking parameters. Conclusion: Interactive Walkway walking-adaptability outcomes have good known-groups validity and complement standard clinical tests and spatiotemporal gait parameters. Show less
Neurological disorders may impair various aspects of walking ability that are needed for safe and independent walking. A comprehensive assessment addressing the key components of walking ability... Show moreNeurological disorders may impair various aspects of walking ability that are needed for safe and independent walking. A comprehensive assessment addressing the key components of walking ability may help to tailor management strategies to the individual needs of each patient. The aspect of walking adaptability is usually not assessed in clinical tests, but seems important for safe walking and is related to fall risk. The Interactive Walkway is a promising, unobtrusive, low-cost and comprehensive assessment tool of walking ability in daily practice. It is a walkway instrumented with an integrated multi-Kinect v2 set-up for markerless registration of 3D full-body kinematics. Besides performing quantitative gait assessments, the Interactive Walkway may also be used to assess walking adaptability. The Interactive Walkway is equipped with a projector to augment the entire walkway with (gait-dependent) visual context, such as obstacles, sudden-stop-and-start cues and stepping targets, demanding step adjustments under time pressure demands in a safe manner. The aim of this thesis was to examine if 1) this approach can provide a valid assessment of walking ability and, if so, 2) if it has clinical potential in the assessment of walking ability and fall risk in patients with stroke and Parkinson’s Disease. Show less
