Plank is an isometric exercise to strengthen abs and stabilise abdominal, back and shoulder. It primarily involves erector spine, rectus abdominal and transverse abdominis. A strong and stable core is basis of powerful and coordinated athletic movements. It reduces overall joint stress and improves posture. But we often see these mistakes when people perform Plank 1. Hyperextended Neck : This leads to back rounding and unnecessary stress on your neck muscles. 2. Elbows far from the body : The cl