Development of Next Generation Assistive Wearable Device

Abstract

As the ageing population grows, there is a need for innovative mobility aids. This dissertation examines the EXOS Alpha, a lower body exoskeleton for older adults. The device acts as a wearable chair, supporting up to 100kg when sitting. It integrates with Nike shoes to address bulkiness and appearance, promoting social acceptance.

Electromyography experiments showed the exoskeleton slightly increased leg muscle activity during walking and sitting, suggesting a need for a lighter design. The exoskeleton helped in rising from a seated position and crouching by reducing muscle effort, though it slightly increased energy use when sitting.

Motion capture analysis highlighted that the exoskeleton limited knee movement and increased stride length, indicating design improvements are needed. Pressure analysis identified uneven load distribution and forefoot fatigue during long periods of sitting.

This research highlights the potential of passive lower limb exoskeletons by incorporating fashion solutions and proposing additive manufacturing for personalisation. These advancements could broaden the usability of exoskeletons, integrating assistive technology with fashion to promote wider acceptance.