Through the addition of springs or compliant elements, mechanical systems can be designed such that the gravity's effect is removed from their components. This idea can be applied to the design of a wide range of industrial machinery and household appliances. Our laboratory has used the underlying scientific principles in the design of leg and arm orthoses for rehabilitation applications.
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Slide 1: Sit-to-stand assist orthosis
Slide 2: Gravity balancing arm exoskeleton
Slide 3: The gravity-balanced orthosis (GBO) tested by a subject on a split-belt treadmill
Slide 4: Gravity-balancing leg orthosis