Bodyweight Strength · Bodyweight — Power

Nordic Curl

Hamstrings, eccentric knee flexion, injury prevention

Minimum Effective Dose
25s
The shortest time that still creates real, measurable change. Hit the dose and the benefit starts. Everything after is bonus.

Why it works

The Nordic curl is the most evidence-backed exercise for hamstring injury prevention. The eccentric loading at long muscle lengths builds the hamstring strength that protects against strains during running and sprinting.

How to do it

Anchor feet. Lower slowly.
Knees on floor, feet under couch. Lean forward as slow as possible. Catch yourself, reset.

Variants

Easier
Hands catch early. Shorter range.
Fall forward less far. Catch yourself sooner.
Harder
Full range. Push off floor to reset.
Lower as far as possible, push off floor to return.

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