title: Automatic evaluation of the 30-s chair stand test using inertial/magnetic-based technology in an older prefrail population.
abstract: The aim of this study was to evaluate the inertial measures of the 30-s chair stand test using modern body-fixed motion sensors. Polynomial data fitting was used to correct the drift effect in the position estimation. Thereafter, the three most important test cycles phases ("impulse," "stand up," and "sit down") were characterized and automatically analyzed. Automated test control is provided, making it possible for researchers without engineering knowledge to run the test. A collection of meaningful data based on kinematic variables is selected for further research. The proposed methodology for data analysis is a feasible tool for use in clinical settings. This method may not only improve rehabilitation therapies but also identify people at risk for falls more accurately than simply evaluating the number of cycles.
authors: Nora
authors: N
authors: Millor
authors: Pablo
authors: P
authors: Lecumberri
authors: Marisol
authors: M
authors: Gomez
authors: Alicia
authors: A
authors: Martinez-Ramirez
authors: Leocadio
authors: L
authors: Rodriguez-Manas
authors: Francisco José
authors: FJ
authors: Garcia-Garcia
authors: Mikel
authors: M
authors: Izquierdo
mesh_terms: D061725:Accelerometry / Q000379:methods*; D000368:Aged; D000369:Aged, 80 and over; D001696:Biomechanical Phenomena / Q000502:physiology; D005260:Female; D057918:Fiducial Markers; D006801:Humans; D059346:Magnets; D008297:Male; D008991:Monitoring, Physiologic / Q000379:methods*; D009068:Movement / Q000502:physiology; D011187:Posture / Q000502:physiology*; D012815:Signal Processing, Computer-Assisted