Qi, Yongbin Estimation of spatial-temporal gait parameters using a low-cost ultrasonic motion analysis system. [electronic resource] - Sensors (Basel, Switzerland) Aug 2014 - 15434-57 p. digital Publication Type: Journal Article ISSN: 1424-8220 Standard No.: 10.3390/s140815434 doi Subjects--Topical Terms: Biomechanical PhenomenaGait--physiologyHumansUltrasonics