Active Smart Wearable Orthosis for Enhanched Rehabilitation THErapy

1. Healthy subjects: Inclusion criteria: * Persons between 18 and 85 years old that can perform all sorts of daily activities with their upper limbs * Ability to sit on a chair with adequate trunk stability * Ability to follow verbal instructions * Ability to communicate verbally with the researchers Exclusion criteria: * Ever had a fracture in the upper limbs * Ever had a surgery in the upper limbs * Pain in the upper limbs obstructing the execution of daily activities with the upper limbs * Physical trauma in the two months preceding the research * Mental problems that make the execution of daily activities unreliable * (Chronic) subluxation of the shoulder joint * Secundary soft tissue problems which may complicate the research or make it impossible (e.g. shoulder impingement, musculoskeletal problems, sensory deficits) * Pregnancy * Pacemaker * Known allergies for one of the components of the ARTHE rehabilitation tool 2. Stroke patients: Inclusion criteria: * Stroke patients, more than three months after onset * Aged between 18 and 85 years * None to moderate spasticity in the hemiplegic arm (Modified Ashworth Scale: 0-2) * Detectable voluntary muscle activity at elbow flexion and elbow extension of the hemiplegic arm (Medical research council score: 1-5) * Ability to sit on a chair with adequate trunk stability * Ability to follow verbal instructions * Ability to communicate verbally with the researchers Exclusion criteria: * Stroke patients, less than three months after onset * Massive spastic patterns * Severe medical conditions that interfere with the proper execution of the research, patients who are medically unstable * Cognitive disorders which may complicate the research or make it impossible * Speaking disorders (aphasia, dysarthria) which may complicate the proper execution of the research and the communication of important verbal information * Visual disorders which may complicate the research or make it impossible * (Chronic) subluxation of the shoulder joint * Shoulder-hand-syndrom * Pusher syndrom * Secundary soft tissue problems which may complicate the research or make it impossible (e.g. shoulder impingement, musculoskeletal problems, sensory deficits) * Pregnancy * Pacemaker * Known allergies for one of the components of the ARTHE rehabilitation tool