Smart knee care for young athletes

What if your knee could tell you when to stop?

Kneely is developing a small, lightweight wearable that aims to make the load on a healing knee visible in everyday life. For children and adolescents: a gentle cue in the moment, and objective data for their doctor between appointments.

Investigational device in development

Learn more

The problem

Between appointments, doctors have zero data.

Children and teenagers with a healing knee mostly hear one thing: “do less”. How much less, nobody knows.

Check-up

6 to 12 weeks

  • School
  • Training
  • Match
  • Weekend

How much did the knee have to take? Nobody knows.

Next check-up

Vague guidance

“Take it easy” is not a treatment plan.

No data

Between check-ups, nobody sees how the knee was actually loaded.

Mental strain

Giving up sport and time with friends hits young people hard.

Solution

A small wearable that fills the data gap.

Kneely is a lightweight wearable with built-in sensors, designed to be worn all day: under school clothes, during sport and in daily life.

Record

How the knee is used through the whole day: at school, in sport and at home.

Cue

A gentle vibration when loading goes above the limit set by the child’s own doctor.

Report

A short summary for the doctor: trends over weeks, high-load moments and activity.

Design goals: one charge for a school day and afternoon sport · works without a phone nearby · light enough to forget under clothes.

The companion app

Everything at a glance.

A daily summary shows how the knee was used: activity, the cues of the day and the report for the doctor, all in one place.

Design concept. The app is in development.
Kneely68%Activity scoreActiveToday’s activityWalking2.4 hRunning0.3 hCues2

How it works

From the doctor’s plan to everyday life in four steps.

Personal setup

Kneely is set up for each child, with limits set by their doctor.

Quick morning setup

Put it on in the morning and the app does the setup. No buttons to press, no settings to remember.

Wear and forget

Kneely records throughout the day. A gentle vibration when loading is too high. No phone connection needed.

Doctor gets the data

At the next appointment, the doctor sees weeks of objective data: load trends, high-load moments and activity.

About us

Why we’re building Kneely.

Every kid with a healing knee hears the same words: slow down, be careful, stop. But nobody tells them how much is actually okay. That gap between “take it easy” and real life is where Kneely was born. The name says it: knee, friendly. Not a restriction, but a companion.

Developed with input from practising paediatric orthopaedic surgeons.

Where we are

  • May 2026

    Expert survey with 16 paediatric orthopaedic and knee surgeons in 7 countries.

  • October 2026

    First wearable prototype finished. First trials on ourselves only; no patients are involved.

  • Next

    Engineering tests, then studies together with clinical partners.

Get involved

Help shape Kneely.

Your experience or expertise directly shapes what we build, and what it measures.

Share your experience

Patients, former patients and parents of children with a knee condition such as OCD: 8 to 10 minutes, anonymous, no email required.

Take the patient survey

Share your expertise

Clinicians and researchers: your experience helps us understand which features actually matter in practice. About 8 minutes, anonymous.

Take the expert survey

Work with us

Clinical validation, technical development or a partnership: we’d love to hear from you.

contact@kneely.ch