Plank
Not a hold-forever contest — a full-body tension drill done hard for short sets.
Setup
- Forearms down, elbows under shoulders.
- Body one straight line — squeeze glutes, tuck ribs, brace abs.
How To Do It
- Hold maximum-tension position: glutes tight, quads tight, fists clenched.
- Breathe shallow and steady behind the brace.
- Stop the set when the line breaks — quality over seconds.
Breathing
Short, controlled breaths without losing the brace.
Common Mistakes
- Hips sagging or piking — one straight line, filmed doesn't lie.
- Zoning out for 3 lazy minutes — 20–40 hard seconds beats it.
- Head dropping — neck neutral, gaze at the floor.
Programming It
Three to five holds. Once 30 honest seconds is easy, make it harder rather than longer.
Why This Exercise Works
The plank trains the trunk to resist extension — to stop the lower back sagging when nothing is holding it up. That is what the core does in real life far more often than it curls you forward. Once you can hold thirty honest seconds, adding minutes teaches you very little; make it harder instead.
Where You Should Feel It
The entire front of the trunk, from just under the ribs to the hips, plus the glutes if you are squeezing them as you should. Feeling it in the lower back means the hips have dropped and the spine is holding what the abs should.
Where It Fits in a Program
Not a hold-forever contest — a full-body tension drill done hard for short sets. Hold work sits anywhere. Use it as a finisher, or between sets of something heavy.
Progressing and Regressing It
To progress the plank: lift a foot, add a reach, or move to a body saw. To regress it: drop to the knees, or plank with the hands on a bench.
Who It's For
Anyone learning to brace, and anyone whose back complains under load. It is a starting point rather than a destination — once you can hold thirty honest seconds, the answer is a harder variation, not a longer clock.
Equipment and Substitutions
This needs no kit at all, which makes it the one that survives travel, busy gyms and bad weeks.
Related Exercises
- Mountain Climbers — Core, Conditioning
- Bird Dog — Core, Low Back, Glutes
- Bear Crawl — Core, Shoulders, Quads
- Pallof Press — Core, Obliques
- Around The World — Core, Shoulders, Grip
- Plank Up-Down — Core, Shoulders, Triceps
- Dead Bug — Deep Core
- Front Rack Carry — Core, Upper Back, Shoulders
Common Questions
What muscles does the plank work?
The plank primarily trains the core, shoulders.
How many sets and reps should I do?
Three to five holds. Once 30 honest seconds is easy, make it harder rather than longer.
What are the most common plank mistakes?
Most often: hips sagging or piking; zoning out for 3 lazy minutes.
Can I do this without any equipment?
Yes — this version needs no equipment at all. It trains the core, shoulders using bodyweight alone, which is why it travels well and works as a warm-up, a substitute, or a full session on its own.
Is this safe if I have an existing injury?
The lower back does real work in the plank. If you have a history there, keep the load conservative and stop the moment a rep reproduces your own pain rather than ordinary effort. Not medical advice.