How to Plank Properly (and How Long to Hold)
Proper plank form, realistic hold times, the mistakes that make planks useless and the progressions that keep them challenging.
To plank properly, set your forearms under your shoulders, extend your legs, squeeze your glutes and brace your abs so your body forms a straight line from head to heels. Then hold that position without letting your hips sag or pike up. For most people, a few sets of 20 to 60 seconds with perfect form is more useful than one shaky multi-minute hold.
Below you'll find a step-by-step setup, target hold times by level, the most common mistakes, and how to progress once a standard plank gets easy.
What a plank actually trains
The plank is an anti-extension exercise. Its job is to teach your core to resist your lower back arching under gravity. It works your rectus abdominis and the deeper transverse abdominis, with help from your obliques, glutes, shoulders and quads.
That makes it a great foundation move, especially for beginners and for anyone who wants a stable core for lifting. It isn't the best exercise for building thick, visible six pack muscles on its own, because it doesn't load the abs through a range of motion. Pair it with a flexion move like the reverse crunch or cable crunch for a more complete routine.
How to plank: step by step
- Kneel on the floor and place your forearms down, elbows directly under your shoulders, forearms parallel or hands lightly clasped.
- Step your feet back one at a time, toes tucked, feet about hip width apart.
- Squeeze your glutes hard. This helps keep your pelvis neutral and your lower back from arching.
- Brace your abs as if you're about to be poked in the stomach. Think of pulling your ribs slightly down toward your hips.
- Push the floor away with your forearms so your upper back doesn't sink between your shoulder blades.
- Keep your neck long, looking at the floor just in front of your hands.
- Breathe steadily through the hold. Short, controlled breaths are fine; just don't hold your breath.
- End the set when you can no longer keep the straight line, not when the timer says so.
A quick self-check: if you can feel the hold mostly in your lower back, your hips have probably dropped. If it feels easy and mostly in your shoulders, your hips may be too high.
How long should you hold a plank?
There's no single correct number. Longer is not automatically better, because once your form breaks you're mostly training your ability to tolerate discomfort in a bad position. Use these as rough targets with good form:
| Level | Target hold | Sets |
|---|---|---|
| Beginner | 15-30 seconds | 3 |
| Intermediate | 30-60 seconds | 3 |
| Advanced | 60-90 seconds, then progress the exercise | 2-3 |
Once you can comfortably hold 60 to 90 seconds with perfect form, it's usually better to make the plank harder than to keep adding time. Holding for three, five or ten minutes is an impressive endurance feat, but it's not necessary for a strong, good-looking core.
The free plank timer is handy for running timed sets and rest periods, and the core strength test can give you a baseline to measure against.
Common plank mistakes
Sagging hips
This is the big one. When your hips drop, your lower back arches and takes the load your abs should be handling. Fix it by squeezing your glutes and tucking your pelvis slightly, as if you're bringing your belt buckle toward your chin.
Hips too high
Piking your hips up into a mini downward dog makes the plank easier by shortening the lever. Lower your hips until your body is straight.
Holding your breath
Bracing doesn't mean not breathing. Practice breathing behind a braced core. It's a skill that carries straight over to heavy lifting. Our guide to breathing and core bracing explains how.
Chasing time over quality
A 45-second plank with full tension beats a two-minute plank where you're sagging for the last minute. Stop the set when form goes.
Shrugging or sinking
If your shoulders creep up to your ears or your chest sinks toward the floor, actively push the floor away and keep your shoulder blades spread.
Plank progressions
When standard planks get easy, use these options in roughly this order of difficulty:
- RKC plank: a standard forearm plank, but squeeze your glutes, quads and fists as hard as possible and pull your elbows toward your toes without actually moving them. Holds of 10 to 20 seconds are usually plenty.
- Long-lever plank: place your forearms a few inches further forward than your shoulders. The further forward, the harder.
- Plank with shoulder taps: from a high (straight arm) plank, tap opposite shoulder without rocking your hips. This adds an anti-rotation challenge.
- Body saw: with feet on sliders or a towel, rock your body forward and back a few inches from the shoulders.
- Weighted plank: have a partner place a plate on your upper back, not your lower back.
- Ab wheel rollout: the natural next step for anti-extension strength. See our ab wheel rollout guide.
For an easier start, plank from your knees, or with your hands on a bench or countertop. Lower the incline gradually as you get stronger.
Plank variations worth knowing
- Side plank: trains your obliques and the muscles along the side of your trunk. Our side plank guide covers it in detail.
- High plank: on straight arms, like the top of a push-up. A bit easier on the core for most people, harder on the wrists.
- Hollow body hold: a gymnastics-style anti-extension hold lying on your back. See the hollow body hold guide.
How to fit planks into your week
A simple approach is to include one anti-extension move, like the plank or one of its progressions, in two or three of your weekly ab sessions. Pair it with a flexion exercise and a rotational or lateral one. For example:
| Exercise | Sets x reps |
|---|---|
| Hanging knee raise | 3 x 8-12 |
| RKC plank | 3 x 15-20 seconds |
| Side plank | 2 x 30 seconds per side |
If you have lower back pain, a plank may feel fine or may aggravate it. Start with short holds and stop if pain increases. If pain persists, see a physical therapist. If you're pregnant or postpartum, check with your doctor before planking.
Will planks give you abs?
Planks make your core stronger and more stable, which supports everything else you do. But visible abs depend mostly on your body fat level. No amount of planking will burn fat specifically from your stomach. To see more definition, combine ab training with a modest calorie deficit and enough protein. Our guide to how to get abs puts the pieces together.
Where AbShred fits
AbShred is an upcoming iPhone app that scans your abs from a photo with AI and scores six zones, including Deep Core, then builds a weekly plan around your weakest area. If stability turns out to be your weak point, planks and their progressions are exactly the kind of work it would prioritize. Join the waitlist to hear when it launches.
FAQ
Is a 1-minute plank good?
Yes. Holding a solid plank with good form for a full minute shows decent core endurance. Once you can do it comfortably, progress to a harder variation instead of chasing longer times.
Should I plank every day?
You can do short planks most days if you recover well, but it isn't necessary. Two to four sessions a week, with progression, works well for most people.
Do planks burn belly fat?
Not specifically. Planks burn a small number of calories and can't target fat on your stomach. Fat loss comes from an overall calorie deficit.
Why do planks hurt my lower back?
Usually because your hips are sagging and your lower back is arching. Squeeze your glutes, tuck your pelvis slightly and shorten the hold. If pain continues with good form, stop and get it checked by a professional.
Forearm or straight-arm plank: which is better?
Both work. Forearm planks are usually a bit harder on the core and easier on the wrists. Straight-arm planks are a good option if forearm planks bother your elbows or if you want to add shoulder taps.