Extend your legs straight behind you, balancing on your toes
Now, tighten your abs, quads, glutes, and hold
Ideally, the length of time you should hold a plank for can vary from 10 seconds to a minute
(abdominal muscles between the ribs and the pelvis), which supports your spine and maintains stability
Engage your core muscles to prevent your hips from sagging or rising
that engages multiple muscle groups simultaneously
in reality, it is more important to perfect the posture while performing this exercise
the obliques (side abdominal muscles), the erector