The potential of iRest in measuring the hand function performance of stroke patients

Abstract

There is a potential of using iRest, a non-motorized device in predicting MAS score.

Contributions to hand kinematics characterisation during product manipulation in activities of daily living

“…Table 2.2.6 presents the most commonly velocityrelated parameters used to assess hand and upper limb kinematics. Some of them are related to speed and acceleration, such as duration [33], joint angular velocity [39], maximum and mean velocity of hand trajectory [40], time to peak speed [41], acceleration [42] or grasp opening velocity [43]). Those velocity-related parameters are commonly used as indicators of level of recovery in pathologies affecting manipulation [40], in product use characterisation [33], [44] or to study neural behaviour under different manipulation conditions [41], among others.…”

“…Some of them are related to speed and acceleration, such as duration [33], joint angular velocity [39], maximum and mean velocity of hand trajectory [40], time to peak speed [41], acceleration [42] or grasp opening velocity [43]). Those velocity-related parameters are commonly used as indicators of level of recovery in pathologies affecting manipulation [40], in product use characterisation [33], [44] or to study neural behaviour under different manipulation conditions [41], among others. Furthermore, hand joint velocities can also provide an indicator of the level of dexterity required to perform the task, as in tasks requiring static grasps joint velocities will be lower than in those requiring fine manipulation.…”

“…Furthermore, hand joint velocities can also provide an indicator of the level of dexterity required to perform the task, as in tasks requiring static grasps joint velocities will be lower than in those requiring fine manipulation. [33], [40] Duration (onsetoffset)…”

“…Defined as the time interval between reach onset and offset (ms) [40] Velocity (maximum and average) - [39], [44] Hand joint angular velocity (average) - [38] Number of movement units (velocity peaks)…”

“…Lately, other studies analysed hand synergies sparse in degrees of freedom [55], [57], analysing both task dependence of synergies and sharing of synergies across subjects, aiming also to contribute to fields such as hand function assessment or product design. When speaking of efficiency/accuracy, parameters such as path ratio [40], Fitt's index of difficulty and performance [58], trajectory error, [59], target error [60] or spatial overshoot [48] have been used (Table 2.2.9). These measures have been used to check motor recovery in patients with affected neurological function [40], [59].…”