EXO PRO: Building Affordable Solutions for Mobility at Cybathlon 2024

EXO PRO, a Taiwanese team preparing for Cybathlon 2024, is tackling the challenges of assistive technology by developing innovative yet affordable exoskeletons and prosthetics. The team's unique approach combines medical and engineering expertise, focused on creating devices that enhance mobility for people with disabilities.

The Problem: Limited Mobility and High Costs

For many people with disabilities, assistive devices such as exoskeletons or prosthetics are either too expensive or don’t fully meet their mobility needs. While existing prosthetics allow for basic movement, they struggle with more complex tasks like climbing stairs or navigating uneven terrain. Cost is another significant barrier, with many advanced systems priced beyond reach for the average user.

Professor Li-Fong Lin (Taipei Medical University), who leads EXO PRO, sees these issues firsthand as a physical therapist. "In rehabilitation, we often see patients who, even with the best technology, can't fully regain their independence," he says. This motivated him to work on more effective solutions.

The Approach: Merging Exoskeletons and Prosthetics

EXO PRO’s solution merges exoskeleton technology with prosthetics, enhancing the capabilities of both. The team’s exoskeleton helps users with prosthetics tackle more complex movements, improving overall functionality. Jack Chien (National Taipei University of Technology), the team’s lead engineer, explains, “We developed an algorithm that detects movement intentions, allowing the exoskeleton to respond fluidly. But we also face challenges, like reducing the system's weight without driving up costs.”

Choosing the right components is crucial for achieving this balance, and motors play a key role. "We needed motors that are both reliable and lightweight to avoid adding unnecessary strain on the user," says Jack. After researching widely-used solutions in the field, the team opted for motors from maxon, known for their consistent performance in exoskeleton systems, helping them address weight and efficiency challenges.

Real-World Impact: Pilot Chang Wei Chieh

The team’s technology is not just theoretical; it will be tested at Cybathlon 2024 by Chang Wei Chieh, EXO PRO’s pilot. Born without a shinbone, Wei Chieh uses a prosthetic leg and has already achieved great success in adaptive sports. However, everyday mobility remains a challenge.

"Prosthetics help, but navigating stairs and obstacles is still tough," Wei Chieh explains. "The exoskeleton could make a huge difference." For Wei Chieh, Cybathlon is a chance to push his limits and demonstrate the potential of the technology. "I don’t lack a leg," he says. "My leg is like Iron Man's."

The Road Ahead: Making Technology Accessible

EXO PRO’s long-term goal is to make assistive devices more accessible and affordable. “Most exoskeletons are imported and extremely expensive, especially in Taiwan. We want to develop something that’s within reach for more people,” Jack says.

While the team faces technical hurdles—such as optimizing weight and battery life—they remain committed to refining their design to meet the everyday needs of people with disabilities. "We’re using Cybathlon as a platform to showcase what our technology can do now and explore future applications," Professor Lin adds.

Conclusion: Practical Innovation in Assistive Technology

EXO PRO is focused not just on winning competitions, but on solving real-world problems. Their strength lies in creating practical, cost-effective solutions that improve the lives of people with mobility challenges. As they head into Cybathlon 2024, EXO PRO is determined to show that innovation doesn’t have to come at a high price—it can be accessible to all.