Effect on hand kinematics when using assistive devices during activities of daily living

Abstract

Assistive devices (ADs) are products intended to overcome the difficulties produced by the reduction in mobility and grip strength entailed by ageing and different pathologies. Nevertheless, there is little information about the effect that the use of these devices produces on hand kinematics. Thus, the aim of this work is to quantify this effect through the comparison of kinematic parameters (mean posture, ROM, median velocity and peak velocity) while performing activities of daily living (ADL) using normal products and ADs. Twelve healthy right-handed subjects performed 11 ADL with normal products and with 17 ADs wearing an instrumented glove on their right hand, 16 joint angles being recorded. ADs significantly affected hand kinematics, although the joints affected differed according to the AD. Furthermore, some pattern effects were identified depending on the characteristics of the handle of the ADs, namely, handle thickening, addition of a handle to products that initially did not have one, extension of existing handles or addition of handles to apply higher torques. An overview of the effects of these design characteristics on hand kinematics is presented as a basis for the selection of the most suitable AD depending on the patient’s impairments.

Using Sensorized Gloves and Dimensional Reduction for Hand Function Assessment of Patients with Osteoarthritis

“…In a recent study, the authors proposed the use of an across-subject calibration so that once calibrated for a set of subjects, only the measurement of a reference posture for each subject is required to be able to record data [ 24 ]. Furthermore, the glove has proven to be suitable for recording tasks requiring medium and gross manipulation skills [ 25 ] and has been successfully used for the characterization of the kinematics of healthy subjects [ 25 , 26 ]. However, it has not yet been used to characterize the kinematics of HOA patients.…”

Evaluación de dispositivos de asistencia para la manipulación en actividades de la vida diaria incorporando el análisis del diseño afectivo mediante Eye-Tracking

“…La manipulación puede ser tan sencilla como trasladar un objeto o tan compleja como transportar y manipular simultáneamente un objeto de forma precisa con la punta de los dedos (Landsmeer, 1962). Dependiendo de la patología o circunstancia que genere la disfunción, se tendrán unas limitaciones u otras, afectando bien a conformar unos agarres determinados, a ejercer fuerzas en determinadas direcciones o a la capacidad de controlar de forma diestra los movimientos, y por tanto las necesidades a cubrir por los DA van a ser diferentes, incluso para realizar una misma tarea (Duruöz, 2014;Roda-Sales et al, 2019b, 2019a. Así, en el caso de OAM, las tareas más problemáticas son las relacionadas con la gestión del hogar que precisan de una mayor fuerza de agarre combinada con movimientos de torsión (Kjeken et al, 2005;Stamm et al, 2016).…”

“…Las características de diseño de los DA afectan lógicamente a su función. Así, los mangos recubiertos de goma parecen ser mejor opción que los de plástico, proporcionando una superficie antideslizante para el agarre (Maleki-Ghahfarokhi et al, 2022), y los diámetros y formas del mango, afectan significativamente la cinemática de la mano (Roda-Sales et al, 2019b), incidiendo en la facilidad de uso o la incomodidad (Maleki-Ghahfarokhi et al, 2022). Los DA tienden a sustituir el uso de agarres de precisión (tipo pinza) por agarres de tipo cilíndrico (Roda-Sales et al, 2019a), permitiendo mayor estabilidad y mayor capacidad para ejercer fuerza.…”

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

“…Hand and upper limb kinematics has been widely studied in literature owing to the importance it has in different fields of study such as workplace ergonomics [165], product design [166], clinical rehabilitation [47] or robotics [167]. The methods used to acquire kinematic or postural data from hand or upper limb are varied, from motion capture systems (electrogoniometers [144], instrumented gloves [37], videogrammetry [168], etc.) to manual techniques based on visual inspection [169].…”

“…3,6 5, Throwing the leftovers on the plate (simulated) into the rubbish bin, with the help of the knife.Rinsing (simulated) the plate, the bowl, the glass, the fork and the knife (in that order) with water, and leaving them on the small worktop. of ground coffee and placing it on the shelf.Opening the kitchen cabinet and taking out a coffee cup.Closing the cabinet and putting the cup on the coffee machine 37. Switching on the coffee machine (Pressing a button).…”