Band Trunk Rotation - Primary muscles trained - external oblique, internal oblique, transverse abdominus, rectus abdominus

Band Side Bend - Primary muscles trained: quadratus lumborum, external oblique, internal oblique, iliocostalis, multifidus, longissimus

Bodyweight Reverse Crunch - Primary muscles trained: rectus abominus, psoas minor, external oblique, internal oblique, psoas major, pyramidalis

Band Spinal Extension - Primary muscles trained: spinalis, interspinalis, intertransversarii, multifidus, longissimus, iliocostalis, rotatores