You can then add weights on the chest

[Seved 1985]

 The fingers should be placed behind the ears,  SPARTAGEN XT or you can cross your arms on your chest. Slowly raise the entire back off the floor while inhaling deeply and exhale as you reverse the move. This exercise can be made more challenging in several ways. For instance, you can do sit ups from an incline with your head lower than your lower body. to lift while you are sitting up.

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