Bodyweight Strength · Bodyweight — Foundation

Hollow Body Hold

Deep core, anterior chain, spinal stability

Minimum Effective Dose
30s
The shortest time that still creates real, measurable change. Hit the dose and the benefit starts. Everything after is bonus.

Why it works

The hollow body hold is the foundation of all gymnastics core work. It trains the anterior chain to create and maintain a rigid, slightly curved shape. The minimum effective dose is just 30 seconds because the isometric demand is high.

How to do it

Low back pressed flat. Hold until it lifts.
Arms overhead, legs extended. The moment your lower back lifts, rest flat.

Variants

Easier
Bend knees. Arms by your sides.
Same flat-back position, shorter lever.
Harder
Hollow body rock. Hold and rock.
Same shape, add a gentle rock.

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