The Muscles You're Actually Working When You Do a Plank

 

Core Muscles The primary focus is on your core, including the rectus abdominis (the "six-pack" muscles),

 

Lower Back To maintain proper posture and stability, your erector spinae muscles in your lower back are activated.

 

Shoulders and Arms Your deltoids (shoulders), triceps (back of the upper arms), and serratus anterior

 

Leg Muscles While the emphasis is on the core, planking also engages muscles in your legs, including the quadriceps

 

Glutes Your gluteus maximus (the largest glute muscle) and gluteus medius (side of the hip) help keep your body

 

Hip Flexors The hip flexor muscles, including the iliopsoas and rectus femoris, are engaged to maintain your body's

 

Deep Stabilizers Muscles like the transversus abdominis and multifidus, which are deep stabilizing muscles

 

Chest Muscles While not the primary focus, the pectoralis major and minor (chest muscles) are activated

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