From Sci-Fi to Reality: Testing the Ascentiz H+K Exoskeleton
Exoskeletons have long been the stuff of science fiction, from Iron Man's suit to Wallace's Wrong Trousers. This week, I stepped into that futuristic world by testing the Ascentiz H+K system, the world's first modular hip-and-knee exoskeleton designed to enhance human performance. Described as an "e-bike for your legs," this device aims to provide a subtle boost during demanding activities like hill climbs, weightlifting, or marathon running. Priced at £1,250 (approximately $1,699) and set for UK release in June, it's a significant investment that raises questions about its practicality and appeal.
Design and Comfort: A Modular Approach
Unlike previous exoskeletons from Ascentiz, which targeted individuals with reduced mobility, the H+K system is tailored for active lifestyles. The team emphasised its focus on runners, cyclists, hikers, commuters, and everyday users seeking an edge. The modular design, as the name suggests, consists of two main components: a large gold band that wraps around the waist for the hip module and separate knee modules that fasten around the legs. Strapping it on took about 30 seconds with assistance, and I was immediately struck by its comfort. Despite its substantial build, eco-friendly slow-rebound memory foam ensured a soft fit around the hips and waist, with the team assuring me it's suitable for all-day wear.
Performance and Sensation: An Unnatural Yet Supportive Experience
Activating the system with a button press at the hip brought it to life, but the team warned that the initial sensation would feel strange. They explained that it doesn't stimulate muscles but rather does the work for you, pulling your legs up in an unnatural way. This was accurate: as I walked around Tottenham Court Road, drawing curious glances, I felt a jerking motion reminiscent of Wallace in the Wrong Trousers. Testing a jog, the sensation somewhat subsided as the exoskeleton synced with my strides, though it would likely require multiple sessions to fully adapt. Initially, I was disappointed—it didn't transform me into a super-athlete but merely provided slight support on flat ground.
- Extends endurance on long walks by up to 35%
- Reduces pressure on muscles and joints when carrying up to 66lbs
- Supports smoother running at speeds up to 17.4mph
Where It Shines: Climbing and Stair Ascents
The device truly excelled on stairs, where its pre-emptive movements felt wonderful rather than bizarre. Scaling a large flight, I received a noticeable boost, arriving at the top breathing normally instead of slightly winded. This highlights its potential for climbing activities over flat-ground walks or runs. Ascentiz claims the system supports running up to 17.4mph, which is impressively fast—about 4mph quicker than Kelvin Kiptum's record-breaking 2023 Chicago marathon pace. However, the team clarified that it won't make you faster; instead, it reduces effort for your natural pace, akin to an e-bike's assistance.
Pricing and Practicality: A Case for Rentals Over Ownership
At £1,250, the exoskeleton is a costly proposition, and a 35% reduction in fatigue may not justify the expense for most consumers. Based on my test, I believe it's better suited for rental models rather than outright purchase. This approach has already gained traction in China, where tourists rent exoskeletons for about £10 per three hours to ease climbs on the Great Wall—a far more appealing option than a £1,250 investment. While the Ascentiz H+K is a fun novelty with clear benefits for specific scenarios like stair climbing, it's unlikely to become a staple in everyday life for the average user.
