The plank is one of the most common exercises in the gym, a super simple static hold that makes in appearance in just about every ab training program you're likely to encounter. Nearly everyone can get down on the floor, stretch themselves out, and hold in place, so the maneuver is a favorite for beginners. It's easy to level up for experts by adding movement or a load on your back. What's more, you're not just training your abs—your whole core, which includes the glutes and low back, too—are fully engaged.
But there's more that goes into the plank, if you want to make the most of the exercise. The key to your core training is in maintaining perfect form and discipline—which might be a bit tougher than you expect.
Counter to popular practice, you'll need to do more than just get onto your elbows and toes and wait for 30 seconds to reap the core-strengthening benefits of the plank. What's more, you can't just assume that the longer you hold a plank, the better for your core muscles.
Benefits of Doing Planks
The exercise is so effective because you're harnessing one of your core's most key functions: bracing. Bracing in this case refers to the act of creating stability between the shoulder and hips. This is done to create intra-abdominal pressure to protect your spine. The plank is also important because you'll want to recreate the same posture and position during other exercises, like squats and deadlifts.
How Long to Hold a Plank
Contrary to popular belief, you'll be better off holding a plank for 30 seconds with proper form than for five minutes with sloppy form. That's because the key for bracing is the tension you can create, and your ability to maintain the level of tension needed for gains decreases the longer you hold on. Your planks should only last as long as you can hold perfect form with maximum tension, which won't be very long until you've reached high levels of fitness. Even then, your upper level will be about one minute, or two if endurance is your goal.
How to Do a Plank
Follow these form cues to learn how to do a perfect plank. Once you've read the step-by-step directions, follow along for some higher-level tips from Samuel to dive deeper into the exercise.
●Get down on the ground. Stack your elbows directly beneath your shoulders and extend your legs. Rest your weight on your elbows and your toes.
●Squeeze your glutes and core to create full-body tension. Think about pulling your belly button into your spine.
●Contract your low back, lats, and rhomboids. Your back should form a straight line; don't let your pelvis dip down or your butt to rise up.
●Face your gaze face down, which keeps your neck in a neutral position.
This Is a Full-body Move
Eb says: The plank can be as easy or hard as you make it; it's your job to make it hard to get the most out of it. That means creating full-body tension. You want your whole body rigid for the plank, so you should maintain some tension in your shoulder blades, drive your upper arms, from elbows to shoulders, perfectly perpendicular to the ground, maintain a ton of tension through your core (obviously) and squeeze your quads to straighten your knees. It's better to hold a truly focused plank for 30 seconds to a minute than to hold a lousy plank for 4 consecutive minutes.
Squeeze Your Glutes!
Eb says: If there's one thing people forget to involve in the plank, it's their glutes. And that leads to the most common flaw you see in a plank: the butt being the highest point in the plank and the loss of a truly flat back. You avoid this by actively squeezing your glutes: That'll drive your hips into a cleanly neutral position and help you maintain a truly straight line from shoulders down through legs.
Maintain Upper Back Tension
Eb says: You want to keep a flat back, parallel to the ground, when you plank. Think about letting somebody eat dinner on your back; that's how flat it should be. To do that, you need a sturdy base from shoulders through upper arms. Actively drive your elbows into the ground and try to keep your upper arms perpendicular to the ground the entire time. Then lightly squeeze your shoulder blades together, too. They shouldn't be fully squeezed (that'll contribute to some core sagging), but you should maintain upper back tension.
Flex Your Abs!
Eb says: This is typically an ab exercise, after all, so attack it like one. Don't just keep your core tight, but flex your abs, and work to feel them working. Think about using them to keep your ribcage closed; that'll engage the entire core complex and make this a better workout.
5 Key Plank Variations
Iron Cross Plank
●Extend your arms out to each side, palms flat on the ground facing out away from you. Squeeze your chest, core, and glutes to hold the position.
Shoulder Tap Plank
●Assume the high plank pushup position with your palms flat on the floor. Intermittently reach up with one hand to tap the opposite shoulder, bracing your core to keep your torso and hips from dipping as you move.
●Extend your arms out directly in front of you, with your palms flat on the ground facing out in front. Squeeze your abs hard to keep your hips up.
●Assume plank position with your palms flat on the floor. Intermittently extend one arm to reach out in front of you. Brace your core to keep your torso and hips from dipping as you move.
●Extend one arms out directly in front of you, with your palm flat on the ground facing out in front. Extend the other arm out to the side, with your palm flat on the ground facing away from you.
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