Validation with videometry of an integrated system to assess horizontal intra-c...

• Author(s): Barbosa, Tiago M. ; Costa, Mário ; Morais, Jorge E. ; Jesus, S. ; Silva, A.J. ; Batista, José ; Gonçalves, José
• Date: 2011
• Persistent ID: http://hdl.handle.net/10198/6117
• Origin: Biblioteca Digital do IPB
• Subject(s): Instrument; Locomotion
• Document Type: Article
• Language: English

Description

The aim of this paper was to: validate an integrated system (i.e., software application and hardware after calibration) to assess human’s horizontal intra-cyclic velocity with a mechanical speedo-meter. System validation was done for a set of land-based human locomotion techniques (from slow walk to maximal running) in four subjects and comparing it with a videometric system (i.e. APAS). There were no significant differences between pair wise data (speedo-meter versus APAS data) using student‘s t-test for both velocity coefficient of variation and maximal velocity. Linear regression models where very high for both the velocity coefficient of variation and maximal velocity. More than 80% of the Bland-Altman plots were within 1.96 standard-deviations.