Hippos follows a progressive, three-phase validation pathway — moving from controlled proof-of-concept testing to human biomechanics and cadaveric research.
We first tested whether the system can deploy under controlled, repeatable conditions.
Deployment:
as fast as 30 ms
False activations:
~0.15%
across physical tests and simulations
“From what i've seen in the early stages, this could be a game changer.”
Dr. James Brown, Lead
Physician, UK Athletics,
quote from the Daily Mail article dated in September, 2024
Physician, UK Athletics,
quote from the Daily Mail article dated in September, 2024
Expert opinions are provided for context and
do not constitute clinical claims or guarantees.
do not constitute clinical claims or guarantees.
Dr. James Brown, Lead
Physician, UK Athletics
Physician, UK Athletics
We then evaluated knee biomechanics during functional tasks to measure changes in high impact motion during real human movement.
Valgus angle reduction:
up to 68%
during high-risk movements
No compensatory effects:
minimal impact
at the trunk, hip, or ankle
Unrestricted wearability:
no hindrance
or reported discomfort during use
“The data clearly demonstrates the ability of the Hippos Legging to stop knee joint motion across a range of functional tasks, there are promising results and clear considerations for product development”
Dr. Ben Langley, Department of Sport and
Physical Activity, Edge Hill University
Physical Activity, Edge Hill University
Expert opinions are provided for context and
do not constitute clinical claims or guarantees.
do not constitute clinical claims or guarantees.
Dr. Ben Langley, Department of Sport and
Physical Activity, Edge Hill University
Physical Activity, Edge Hill University
Finally, cadaveric testing assessed mechanical stabilization under physiological loading, including rotational response across different flexion angles.
ACL risk-threshold reduction:
approximately 20%
decrease in high-risk knee motion patterns, including rotation, hyperextension, and valgus angle.
“Hippos has developed an intuitive protective knee sleeve that could reshape how we think about sports safety. The sleek AI-powered knee sleeve deploys a protective airbag in milliseconds.”
Dr. Paul Saluan, Orthopedic Surgeon &
Researcher, Cleveland Clinic
Researcher, Cleveland Clinic
Expert opinions are provided for context and
do not constitute clinical claims or guarantees.
do not constitute clinical claims or guarantees.
Dr. Paul Saluan, Orthopedic Surgeon &
Researcher, Cleveland Clinic
Researcher, Cleveland Clinic
Hippos’ efforts are guided by orthopedic surgeons, sports-medicine physicians, biomechanists, and military medical leaders across elite athletics, healthcare, and defense.
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Expert opinions are provided for context and do not constitute claims or guarantees.
