Stand on platform facing to one side and grasp bar for support. Position front of leg nearest to machine against padded roller while standing on other leg.
Raise lever by flexing hip until knee is higher than hip. Return until hip is extended. Repeat. Continue with opposite leg.
Machine must be adjusted to align hip with lever fulcrum. Rectus Abdominis and Obliques only contract dynamically if actual waist flexion occurs. With no waist flexion, Rectus Abdominis and External Oblique will only act to stabilize pelvis and waist during hip flexion. Conversely, it may be necessary to completely flex hips before waist flexion is possible, which is not practical with the opposite leg supporting body. See Spot Reduction Myth and Lower Ab Myth.