Assessing the concurrent validity of a gait analysis system integrated into a smart walker in older adults with gait impairments.

"Declaration of conflicting interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article."

"Funding: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The study was conducted within the 7th Framework Programme of the European Union, ICT Challenge 2, Cognitive Systems and Robotics, contract ‘EU-FP7-ICT-2011-9 2.1 – 600769 – MOBOT: Intelligent Active MObility Assistance RoBOT Integ-rating Multimodal Sensory Processing, Proactive Auto-nomy and Adaptive Interaction’. The funding source had no role in the design and conduct of the study; collection, analysis and interpretation of data; and preparation, review or approval of the manuscript."