Planks for a Stronger Core: What Works, What Doesn’t, and What to Avoid

Why Planks Are a Core Workout Powerhouse (And When They’re Not)

Want a stronger, more defined midsection? Planks are one of the most effective exercises for building core strength—but there’s a right way and a wrong way to do them. While planks engage your abs, hips, lower back, and shoulders, holding them for too long can actually do more harm than good. World-renowned back pain and core expert Dr. Stuart McGill has warned that misconceptions about planks often lead to poor posture or even injury. The truth? Less is more.

In daily life, your core muscles fire in short bursts—whether you’re lifting groceries, resisting a tug from your dog, or simply standing tall. The key isn’t endurance; it’s activation. Forget the YouTube records of people holding planks for hours. Even 60 seconds might be overkill. Instead, try 10-second “repeats”: hold for 10 seconds, release, and repeat for 3 or more sets. This approach trains your muscles to engage quickly and effectively, just like they do in real life.

How to Do Planks the Right Way (Without Wrecking Your Posture)

Planks are fantastic for core strength, but they can also reinforce bad habits if you’re not careful. Many people—especially women—tend to hold tension in their upper back, neck, and shoulders. If you often catch yourself slouching in the mirror (a posture called retraction), long plank holds might just make it worse. The same goes for your wrists and elbows, which can take a beating if you’re prone to carpal tunnel or joint strain.

So how do you set up a plank properly? Start on your hands and knees, then lower your forearms to the ground with your elbows bent at 90 degrees. Stack your shoulders directly over your elbows, extend your legs behind you, and come onto your toes. Engage your core by pulling your belly button toward your spine, squeezing your shoulder blades together, and tightening your glutes. Push through your forearms and toes to lift your body into a straight line from head to heels. Aim for 30 seconds at first, gradually working up to 45 or 60 seconds—but only if you can maintain perfect form.

Once you’ve mastered the basics, you can add dynamic movements like arm or leg lifts, or even slide your feet on a towel to increase the challenge. The goal is to keep your core engaged, not to see how long you can endure.

5 Plank Variations to Strengthen Your Core (Without the Strain)

Ready to take your plank game to the next level? These variations target different muscle groups while keeping your joints safe. Try adding a few to your routine—you can even do them while watching TV!

1. Extended Plank

Place your hands on the floor with your shoulders stacked directly over your wrists. Extend your legs behind you, coming onto your toes. Engage your abs and glutes, then push through your hands and feet to lift your body into a straight line. Hold for 10-second repeats or 30–60 seconds.

• Modification 1: Do this on your forearms to reduce wrist and elbow strain—your core won’t know the difference!
• Modification 2: Keep your knees on the ground with your hips extended for an easier version.

2. Side Plank

Lie on your side with your forearm on the ground, elbow bent at 90 degrees and directly under your shoulder. Stack your legs on top of each other, then push through your forearm and bottom foot to lift your body into a straight line. Hold for 10-second repeats or 30–60 seconds, then switch sides.

• Modification 1: If balancing is tough, place your feet in a “scissor” position for stability.
• Modification 2: Do this on your knees with your lower legs bent at 90 degrees.
• Modification 3: For an extra challenge, add leg lifts—8–10 reps per side.

3. Decline Plank

Start in a forearm plank position, but elevate your feet on a bench or step. This variation increases the demand on your upper body, so be mindful not to let your shoulders take over. Keep your core engaged and hold for 10-second repeats or 30–60 seconds.

4. Extended Plank with Shoulder Taps

Begin in an extended plank position with your hands on the floor and shoulders stacked over your wrists. Widen your feet slightly for stability. Without shifting your hips, lift one hand off the ground and tap the opposite shoulder. Alternate sides slowly and with control. Continue for up to 60 seconds or until your form breaks.

5. Long-Lever Plank

This advanced variation extends your arms further in front of you, increasing the challenge for your core. Start in a standard plank position, then walk your hands forward until your body forms a long, straight line. Hold for 10-second repeats or 30–60 seconds, focusing on keeping your hips level.

The Bottom Line: Quality Over Quantity

Planks are a fantastic addition to any fitness routine, but they’re not a competition. Focus on form, not duration. Short, controlled holds with proper alignment will give you better results—and a stronger, more resilient core—than marathon plank sessions ever could. For more guided workouts, check out our YouTube channel for fitness videos tailored to all levels.