Assessment of physical activity in older Belgian adults : validity and reliability of an adapted interview version of the long International Physical Activity Questionnaire (IPAQ-L) [PDF]
, 2015 Background: Adequate monitoring of older adults’ physical activity (PA) is essential to develop effective health promotion programs. The present study examined criterion validity and test-retest reliability of the long International Physical Activity ...
De Bourdeaudhuij, Ilse +4 more
core +2 more sources
Damage classification and estimation in experimental structures using time series analysis and pattern recognition [PDF]
, 2014 Peer ...
de Lautour, Oliver R., Omenzetter, Piotr
core +1 more source
Hybridizing matter-wave and classical accelerometers
, 2014 We demonstrate a hybrid accelerometer that benefits from the advantages of both conventional and atomic sensors in terms of bandwidth (DC to 430 Hz) and long term stability. First, the use of a real time correction of the atom interferometer phase by the
Hardin, Thomas +6 more
core +2 more sources
Inertial and magnetic sensing of human movement near ferromagnetic materials [PDF]
, 2003 This paper describes a Kalman filter design to estimate orientation of human body segments by fusing gyroscope, accelerometer and magnetometer signals. Ferromagnetic materials near the sensor disturb the local magnetic field and therefore the orientation
Luinge, Henk +2 more
core +7 more sources
Raw and Count Data Comparability of Hip-Worn ActiGraph GT3X+ and Link Accelerometers
, 2017 To enable inter- and intrastudy comparisons it is important to ascertain comparability among accelerometer models. Purpose: The purpose of this study was to compare raw and count data between hip-worn ActiGraph GT3X+ and GT9X Link accelerometers. Methods:
Bock, Joshua M. +7 more
core +1 more source
Inclination Measurement of Human Movement Using a 3-D Accelerometer With Autocalibration [PDF]
, 2004 In the medical field, accelerometers are often used for measuring inclination of body segments and activity of daily living (ADL) because they are small and require little power.
Luinge, Henk J., Veltink, Peter H.
core +3 more sources
Validity of a Wearable Digital Insole for Assessing Gait ON and OFF in Parkinson's Disease
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Gait impairment is a distinctive symptom of Parkinson's disease that negatively impact mobility. We assessed the validity of wearable digital insoles against a validated reference gait analysis system for measuring select gait characteristics in patients with Parkinson's disease. Methods A comparative analysis between digital insoles
Deborah A. Hall +16 more
wiley +1 more source
Effect of Vinyl Flooring on the Modal Properties of a Steel Footbridge [PDF]
, 2019 Damping ratios associated with non structural elements play an important role in mitigating the pedestrian-induced vibrations of slender footbridges.
Hernández Díaz, Alejandro Mateo +3 more
core +1 more source
Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control
Advanced Engineering Materials, EarlyView.This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian +4 more
wiley +1 more source
Inertial Control of the VIRGO Superattenuator
, 1999 The VIRGO superattenuator (SA) is effective in depressing the seismic noise below the thermal noise level above 4 Hz. On the other hand, the residual mirror motion associated to the SA normal modes can saturate the dynamics of the interferometer locking ...
Losurdo, Giovanni
core +1 more source