Entries by Jan

Low-level controller of active spinal exoskeleton

Which is the best way to control a wearable robot? The answer to this question is heavily dependent on 3 main factors: the mechatronic hardware chosen by the designers, the tasks where the robot needs to assist (bending forward, lifting, >0 trunk angle static postures,…), and the tasks where the user needs to be free […]

Active spexor prototype development

While passive lower back support exoskeletons might be simpler, cheaper and less prone to error, they also lack versatility. An active exoskeleton on the other hand has the potential to dynamically adjust the support as needed. To explore these active options, two active exoskeletons are being built – one hydraulically and one electrically actuated. By […]

Exoskeletons and Soft Wearable Robotics Day

We presented the the work of Spexor and demonstrated our prototype at the Exoskeletons and Soft Wearable Robotics Day on march 14, 2019 in Amsterdam. The event featured live demonstration of multiple exoskeletons and prototypes in action, key note talks held by experts in the field of wearable robotics and a Swiss start-up, and pitches […]

Inverse optimal control results for motions of workers with LBP

It is a widespread assumption that motions of humans and animals are carried out in an optimal way due to evolution, learning and training. The behavior under certain circumstances such as pain or fatigue can also be considered as the result of an optimization process. Since most of these optimizations are unintentional and unconscious, the […]

Wearability of the passive exoskeleton

In spite of the remarkable advances in the field of exoskeletons, lack of wearability and ease-of-use is still an important technological barrier that often impedes the acceptability of exoskeletons among the healthy individuals. To overcome this barrier in the design of SPEXOR exoskeleton, we developed a special combination of joints that compensate the misalignment between […]

Evaluation of the passive exoskeleton

We performed a comprehensive evaluation of the new version of our passive SPEXOR exoskeleton, assessing the effect of wearing the exoskeleton on biomechanical loading of the spine, functionality, user satisfaction and self-efficacy. Recruiting employees from load-handling professions we tested participants with and without low back pain. We concluded that we reached beyond the state of […]