.... The objectives of the work reported by this paper were to (1) design an ISL calibration device and demonstrate the design for a specific application, (2) describe a new method for calibrating the device that minimizes measurement error, and (3) quantify measurement error of the device using the new method...

... measurement error, (iii) quantify dynamic measurement error due to external acceleration, and (iv) measure ankle joint complex rotation during snowboarding maneuvers performed on a snow slope. An “elbow-type” ISL was designed to measure ankle joint complex rotation throughout its range ( ± 30 deg for flexion...

...Lianfang Tian In previous biomechanical studies of the human spine, we implemented a hybrid controller to investigate load-displacement characteristics. We found that measurement errors in both position and force caused the controller to be less accurate than predicted. As an alternative to hybrid...

... sources that include system calibration, image quality, and the measurement of image coordinates, and are system dependent 12 . To determine whether marker migration occurs, any change in the coordinates due to migration must be distinguished from a change due to inherent measurement error. Therefore...

... the nucleus to act as an incompressible hydraulic fluid. Depending on the integrity of the annulus, the mechanical response time resulting from applied loads can vary due to different rates of permeability 5 . swelling biomechanics kinematics orthopaedics bone measurement errors biomedical...

... ENGINEERING . Manuscript received October 2001; revised manuscript received November 2002. Associate Editor: M. G. Pandy 01 October 2001 01 November 2002 09 04 2003 biomedical MRI kinematics orthopaedics measurement errors biomechanics motion estimation medical image processing...

... the mechanotransduction process, the wall shear stress profile determined by the microscopic flow must be considered. velocity measurement measurement errors optical microscopy interpolation vectors cellular transport biological techniques 01 09 2001 01 10 2001 29 03 2002...

... in the JOURNAL OF BIOMECHANICAL ENGINEERING . Manuscript received by the Bioengineering Division January 7, 1999; revised manuscript received April 28, 2000. Associate Technical Editor: M. G. Pandy. 07 January 1999 28 April 2000 biomechanics gait analysis force measurement measurement...