Mobility · Focus — Knee

Seated Knee Extension–Flexion

Knee joint health, quadriceps activation, synovial fluid production

Minimum Effective Dose
1 min
The shortest time that still creates real, measurable change. Hit the dose and the benefit starts. Everything after is bonus.

Why it works

Gentle, controlled knee extension and flexion produces synovial fluid, which lubricates and nourishes the joint cartilage. It's joint nutrition through movement.

How to do it

Straighten and bend. Slow both ways.
Seated, extend one leg fully, then fold back. Control the whole range. Pain-free only. This is joint nutrition, not a stretch goal.

Related exercises

Pair with breathwork

Wind down after your session with a Shift breathwork protocol.

Baseline builds this into your session automatically.

The system decides what you need, sequences the exercises, and runs the timers. All you do is press start.

Launching May 2026 · iPhone