On assistive technology targeted for people with activity limitations and participation, usability issues becomes an essential tool
to ensure that the product has the appropriate ergonomics characteristics, in other words, ensure that it fits the specific user´s
needs. The aim of this study was to analyze the usability of an adaptive seating device for children with neuromotor impairments,
by using kinematic indicators of the reaching movement. The study sample consisted of 13 children with associated neurologic
conditions. The tests were developed by using a wooden bench height adjustable, integrated with the adaptive seating device
under study, and a system to capture three-dimensional image, called Qualisys Track Manager. The following reaching
kinematics variables were measured: maximum reaching velocity, movement duration, index of curvature, and unit movements.
It was found that the use of the adaptive seating device had a positive impact on upper limb function in children with neuromotor
impairments. It was also noticed an improvement in the reaching movement kinematics, which was statistical significant for the
index of curvature and unit movements. As main conclusions, it is possible to point out some positive effects that the product
under study seems to have on users' movements, such as the improved movement quality of the upper limb, which could mean a
better postural adjustments and higher trunk postural control. By identifying new measures of usability in terms of effectiveness
and efficiency for the analyzeddevice, the results obtained may serve also as performance indicators, providing new data that
may help to improve the product and eventually modifying it, in order to turn it more compatible with the needs of the considered
target population