Less lower back more upper back.

If you put more effort into using your upper and middle back, you will feel much less lower back stress during exercise.

My opinion…it is much easier to tuck/pull-in/lift/activate/ abdominal muscles if you use more upper back which involves squeezing between your shoulder blades, thereby contracting your trapezius and rhomboids.

Here are three different things to know:

1) Totally relax, crossing your hands in front and do not flex your abs at all. Roll shoulders forward. This is the posture most of us are doing all day long. Unfortunately this is a bad habit and lead to poor posture.

2) Instead, pull your shoulders back with your abs lifted. Shorten the distance between your shoulder blades. Compare the picture below with the picture above. This should be your normal posture all day long. Lower back is light, chest is open and it is easier to breathe. With practice this, this become natural and feels good.