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5 Common Plank Mistakes Sabotaging Your Core Strength – And Expert Fixes

Do you plank regularly but feel like you're not seeing results? One of these common errors might be holding you back. As experienced trainers know, perfecting form is key to building true core stability.

We've got proven solutions to help you maximize every rep.

1. Arching your back

Arching your back is a frequent plank error, especially as your core fatigues. This drops your waist toward the floor, breaking the straight line from head to heels. While it may not hurt immediately, it strains your lower back over time, risking pain and reducing core engagement since you're no longer supporting your full body weight properly.

Solution: Tilt your pelvis to maintain a neutral spine. Draw your navel toward your spine and tuck your hips slightly toward your chest. Feel the burn intensify?

2. Looking up

Glancing up at a mirror or clock to check form or time can compromise your alignment. A proper plank demands a straight line from head to heels—lifting your gaze disrupts this, leading to neck strain and shoulder stiffness, particularly with frequent sessions.

Solution: Keep your neck long and gaze toward your hands. This reduces neck tension and keeps muscles relaxed longer.

3. Raising or lowering your hips

After 45-60 seconds, it's tempting to hike your hips skyward or sag them down for relief. Even unconsciously, this shifts tension from your core to your shoulders, turning it into a different exercise entirely.

Solution: Engage your full body—squeeze your legs and glutes to hold hips level. This amplifies abs activation for better results.

4. Shrugging your shoulders

As planks drag on, your body shakes and breathing labors, often causing shoulders to creep toward your ears. This tenses your neck, stiffens back muscles, and hinders breathing control, making the hold tougher.

Solution: Actively pull shoulders down and back. When breathing heavies up, pause to reset posture and stay aligned.

5. Holding planks too long

Plank challenges push endurance extremes, but overholding sacrifices form as fatigue sets in—defeating the purpose. If perfect planks feel easy for minutes, it's time to level up; static holds burn fewer calories than dynamic moves anyway.

Solution: Use planks as a core stability foundation, then progress to challenging variations that demand constant movement for greater strength and calorie burn.

Read also: 7 variations on the shelf

Photo: Getty Images. Source: Livestrong.com