I never set out to reinvent the treadmill. I set out to solve a single, stubborn problem: how do you help someone who is afraid to walk — afraid their body will betray them — find the courage to move again? 

That question became the foundation of everything I built. The answer became the LightSpeed Lift Body Weight Support System — a technology that literally lifts weight off people while they walk or run on a treadmill, so they can move with confidence, safety, and freedom they may not have felt in years. 

THE BEGINNING 

The Problem I Couldn't Stop Thinking About

The idea was simple, even if the engineering wasn't. When a person carries less of their own body weight, remarkable things happen. Their joints stop screaming. Their muscles stop compensating in all the wrong ways. Their gait — that deeply personal, biomechanical fingerprint — begins to normalize. And perhaps most importantly, their confidence returns. 

Confidence is everything in rehabilitation and fitness. Without it, people don't push. They don't try. They plateau — or worse, they stop entirely. I wanted to design a system that gave people a safe runway to rebuild that confidence, one step at a time. 

2012, Scott Jurek, Boulder Running Company.

THE SPARK 

Dan's Story — The Run That Started Everything 

The idea didn't come from a laboratory or a research paper. It came from a friend. 

Dan was what you'd call a devoted runner — the kind of person for whom a day without miles felt incomplete. Then a workplace accident changed everything. He injured his neck, and the damage was severe enough that running became an act of

punishment rather than joy. With every footfall, a bolt of shooting pain radiated down into his left arm. He kept trying. He kept hurting. 

I couldn't watch that and do nothing. So I improvised. I rigged up a boat winch, ran a cable up and over the treadmill, and attached it to a fish scale — the fish scale was key, because it allowed a little give, a natural oscillation that didn't fight the body's movement. Then I lifted roughly 25 pounds of Dan's body weight off the belt. 

"Almost immediately, Dan was able to run pain free. He looked over at me and said: 'A device like this could help just about any regular runner run farther and faster — with fewer injuries.'" 

That moment — a makeshift winch, a fish scale, and a friend running without pain for the first time in months — is where the LightSpeed Lift Body Weight Support System was born. Dan's words didn't just describe a product. They described a purpose.

5 year old patient had very weak muscles due to a congenital defect and had difficulty standing and using her hand to play but was able to walk and play while standing for 11 whole minutes!

THE INNOVATION

Lifting More Than Weight 

The LightSpeed Lift system works by partially suspending the user in a precisely calibrated harness above the treadmill belt. As they walk or run, the system offloads a controlled percentage of their body weight — relieving stress on joints, tendons, ligaments, and muscles — while still demanding the full neuromuscular engagement of real, upright locomotion. 

"By relieving weight on the joints and muscles, a person is able to exercise safely — and for longer — than they ever could on their own." 

There is another feature that quietly became one of the most valued: fall prevention. The harness catches you. If you stumble, if your legs give out, if fatigue takes over mid-stride — the system holds you. For elderly patients, post-surgical athletes, and neurological rehab clients, that safety net is not a convenience. It is life-changing.

2019, Jordan Hasay (now Hogan), Pre Boston Marathon.

The Science

Running Smarter, Not Harder

One of the most compelling applications we discovered along the way was injury prevention in runners — particularly the epidemic of overuse injuries that sideline millions of athletes every year. Stress fractures, IT band syndrome, plantar fasciitis, shin splints: the common thread is cumulative impact. 

The LightSpeed Lift system reduces the landing force of running by 15 to 20%, directly targeting the root cause of the most common overuse injuries in runners. 

That reduction might sound modest. It is not. Across thousands of foot strikes in a single training session, shaving 15–20% of impact force is the difference between a body that adapts and a body that breaks down. Runners using the system can maintain their training volume — and often increase it — while dramatically reducing injury risk.

2020, Coaches Ben Thomas & Helen Lehman-Winters celebrate their new custom-ordered LSX-500’s at the new, state-of-the-art Hayward Field Complex.

THE REACH 

400 Facilities. One Mission.

What began as an idea has grown into something I could not have fully anticipated. The LightSpeed Lift Body Weight Support System is now in use in over 400 facilities across the United States and around the world. The range of environments where it's found a home speaks to its versatility:

• COLLEGE ATHLETIC PROGRAMS
• HIGH SCHOOL SPORTS TEAMS
• PHYSICAL THERAPY CENTERS
• FITNESS CENTERS
• PRIVATE HOMES
  

College and high school athletic programs use it to accelerate recovery and extend athlete longevity. Physical therapy clinics use it to give post-operative patients a path back to independent movement. Fitness centers use it to open their doors to populations who previously had nowhere to go. And individuals use it at home — quietly, privately — rebuilding themselves at their own pace.

2023, Roisin Willis won the 800 m in a time of 1:59.93 at the 2023 NCAA Division 1 Indoor T&F Championships in Albuquerque, NM.

THE BELIEF 

Why It Still Matters 

People ask me what I'm most proud of. It's not the patents. It's not the number of facilities. It's the moment someone steps onto the treadmill, feels the harness take a little of the burden, and realizes — sometimes for the first time in a long time — that they can do this. 

Movement is dignity. The ability to walk across a room, to jog a trail, to keep up — these things are not trivial. They are central to how people experience their own lives. When we lift a little of the weight, we give people back a little of themselves. 

That's why I built the LightSpeed Lift Body Weight Support System. And that's why, every day, I'm grateful it's still lifting people up.

2022, Founder Malcolm Macaulay with the next batch of frames headed to the paint shop.