Is what you see what you get? Standard inclinometry of set upper arm elevation angles
MetadataShow full item record
© 2014 Elsevier Ltd and The Ergonomics Society. Previous research suggests inclinometers (INC) underestimate upper arm elevation. This study was designed to quantify possible bias in occupationally relevant postures, and test whether INC performance could be improved using calibration. Participants were meticulously positioned in set arm flexion and abduction angles between 0° and 150°. Different subject-specific and group-level regression models comprising linear and quadratic components describing the relationship between set and INC-registered elevation were developed using subsets of data, and validated using additional data. INC measured arm elevation showed a downward bias, particularly above 60°. INC data adjusted using the regression models were superior to unadjusted data; a subject-specific, two-point calibration based on measurements at 0° and 90° gave results closest to the 'true' set angles. Thus, inclinometer measured arm elevation data required calibration to arrive at 'true' elevation angles. Calibration to a common measurement scale should be considered when comparing arm elevation data collected using different methods.
Showing items related by title, author, creator and subject.
McAtee, Brendon Kynnie (2003)Remote sensing of land surface temperature (LST) is a complex task. From a satellite-based perspective the radiative properties of the land surface and the atmosphere are inextricably linked. Knowledge of both is required ...
Walmsley, C.; Williams, Sian; Grisbrook, Tiffany; Elliott, C.; Imms, C.; Campbell, A. (2018)BACKGROUND: Wearable sensors are portable measurement tools that are becoming increasingly popular for the measurement of joint angle in the upper limb. With many brands emerging on the market, each with variations in ...
Camera calibration using one-dimensional information and its applications in both controlled and uncontrolled environmentsPeng, En; Li, Ling (2009)Camera model and its calibration are required in many applications for coordinate conversions between the two-dimensional image and the real three-dimensional world. Self-calibration method is usually chosen for camera ...