The plank is one of the best total-body and core exercises. It helps to define and sculpt your midsection, build isometric strength and improve posture. It also works to engage the abdominal muscles, arms, back, glutes, shoulders and hamstrings.
Once upon a time, sit-ups were touted as the best exercise for slimming and sculpting your midsection. Today, experts agree that people can forgo cumbersome spine-curving sit-ups in favor of a better exercise: the plank.
A tried and true exercise, the plank is an extremely effective workout for everyone, especially athletes and crossfitters that want to get their bodies in top condition. Why does the plank exercise deliver results for athletes?
Planks are one of the most effective bodyweight exercises you can do to get in shape fast. Planks require a small investment of time but they work a huge number of muscles in a short span of time. One of the main problems with planking is that the exercise can be very boring.