How to get the right posture during workouts
Lie on your back in front of the band and grab the handles with
your arms straight, Bend your hips and knees a little more than 90
degrees and lift your feet off the ground together.

Anchor a resistance band so that the ends hang about two feet off the floor. Lie on your back in front of the band and grab the handles with your arms straight Bend your hips and knees a little more than 90 degrees and lift your feet off the ground together.
With your arms straight, pull the handles to your sides and hold them. Inhale through your nose without shrugging your shoulders or tensing your neck (you should feel air filling your lower back, which should not arch), and exhale as forcefully as you can through your mouth. Without releasing the band, complete 10 slow inhales and exhales.
Release your arms back above your head. That's 1 repetition. Do 3 sets of 2 to 5 reps during every workout
With your arms straight, pull the handles to your sides and hold them. Inhale through your nose without shrugging your shoulders or tensing your neck (you should feel air filling your lower back, which should not arch), and exhale as forcefully as you can through your mouth. Without releasing the band, complete 10 slow inhales and exhales.
Release your arms back above your head. That's 1 repetition. Do 3 sets of 2 to 5 reps during every workout