Exoskeleton assistance symmetry matters: unilateral assistance reduces metabolic cost, but relatively less than bilateral assistance

Surgical competence in general surgery assistance: a brief report

Compact Hip-Force Sensor for a Gait-Assistance Exoskeleton System

In this paper, we propose a compact force sensor system for a hip-mounted exoskeleton for seniors with difficulties in walking due to muscle weakness. It senses and monitors the delivered force and power of the exoskeleton for motion control and taking urgent safety action. Two FSR (force-sensitive resistors) sensors are used to measure the assistance force when the user is walking. The sensor ...

Human-in-the-loop optimization of exoskeleton assistance during walking.

Exoskeletons and active prostheses promise to enhance human mobility, but few have succeeded. Optimizing device characteristics on the basis of measured human performance could lead to improved designs. We have developed a method for identifying the exoskeleton assistance that minimizes human energy cost during walking. Optimized torque patterns from an exoskeleton worn on one ankle reduced met...

Public Assistance

ONLY BY LOOKING BACK to the years before the Social Security Act became law is it possible to assess the great progress made in the past decade in providing for needy aged and blind persons and dependent children. The public assistance titles of the Social Security Act were only par t of a comprehensive legislative program enacted by Congress in 1935 to supply work, insurance protection, or as ...

Muscle-tendon mechanics explain unexpected effects of exoskeleton assistance on metabolic rate during walking.

The goal of this study was to gain insight into how ankle exoskeletons affect the behavior of the plantarflexor muscles during walking. Using data from previous experiments, we performed electromyography-driven simulations of musculoskeletal dynamics to explore how changes in exoskeleton assistance affected plantarflexor muscle-tendon mechanics, particularly for the soleus. We used a model of m...