Time-Based and Path-Based Analysis of Upper-Limb Movements during Activities of Daily Living.

Patients after stroke need to re-learn functional movements required for independent living throughout the rehabilitation process. In the study, we used a wearable sensory system for monitoring the movement of the upper limbs while performing activities of daily living. We implemented time-based and path-based segmentation of movement trajectories and muscle activity to quantify the activities of the unaffected and the affected upper limbs.

Compensation for Magnetic Disturbances in Motion Estimation to Provide Feedback to Wearable Robotic Systems.

The direction of the Earth's magnetic field is used as a reference vector to determine the heading in orientation estimation with wearable sensors. However, the magnetic field strength is weak and can be easily disturbed in the vicinity of ferromagnetic materials, which may result in inaccurate estimate of orientation. This paper presents a novel method for estimating and compensating for magnetic disturbances.

Asymmetry in sit-to-stand movement in patients following transtibial amputation and healthy individuals.

The aim of this study was to analyse the asymmetry of sit-to-stand (STS) movement in a group of subjects following unilateral transtibial amputation (STTA) and a group of healthy subjects (HSs). Experimental measurements investigated standing-up pattern from two seat heights and at three different speeds. Body motion was measured using an optical measuring system with active markers.