Man performing a hollow hold
Friday, May 29, 2026

CoreIsometrics

Four core isometrics rotated three times: forty-five seconds of work, thirty seconds of station rest. Focused stack of plank variants and core holds.

Before You Start

The WorkoutBriefing

Movements

  1. 01

    Forearm Plank

    Station 1 — 45s; tight glutes, ribs down

  2. 02

    Hollow Hold

    Station 2 — 45s; lower back pressed into the floor

  3. 03

    Arch Hold

    Station 3 — 45s; lying face down, arms and legs lifted

  4. 04

    Side Plank

    Station 4 — 45s per side; timer swaps sides automatically with a 5s transition

Scaling

Easier

30s holds; drop side plank to knees

Harder

60s holds; add a leg lift to the front plank.

Timer Structure

What Today's TimerLooks Like

4 holds × 3 rounds. 45s hold / 30s station rest. 60s round break.

Forearm Plank
Hollow Hold
Arch Hold
Side Plank
Rest
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