I'm wondering, is it correct to lift your lower back above the mat? Some fitness specialists say you should keep your lower back laid on the ground.
mloskot 1 year ago
that is crunches.. this is situps...
sankaranid 4 months ago
I'm wondering, is it correct to lift your lower back above the mat? Some fitness specialists say you should keep your lower back laid on the ground.
mloskot 1 year ago
that is crunches.. this is situps...
sankaranid 4 months ago