The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This study describes an analysis of the upper-limb coordination through the calculation of manipulability indices borrowed from robotics. From the current arm posture as input data, this original approach allows the quantification of the hand capacities to generate linear velocities represented with a 3D ellipsoid from which two indices were derived. Its volume that represents the global velocity...
The aim of the present study was to apply several indices originating from the robotics field to evaluate the upper-limb force generation capacities. From a rigid body model of the upper-limb, motion capture, and joint torque data at the shoulder, elbow, and wrist, the proposed indices allow to evaluate the force that can be generated at the hand in all Cartesian directions. The interest and limits...
The aim of the present study was to assess the kinematics and the muscular activity of the upper limb of subjects suffering from a spinal cord injury (SCI) at the C6 level during a grasping task. Data were compared to a control group composed of able-bodied subjects. The electrical activity of six major upper limb muscles and 3D motion of the arm were recorded. Results showed higher relative muscular...
Analysis of functional capacities modifications after spinal cord injuries may have an interest in clinical rehabilitation programs. In this framework, this study is focused on the analysis of motor synergies i.e. how the upper-limb degrees of freedom (DOFS) are organized when considering C6–C7 quadriplegic subjects performing a reaching task. A previous work has shown that sharing patterns between...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.