Leg raise machine
Great exercise for your straight abs and your hip flexors.
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Position your back firmly against the vertical pad.Firmly grip the hand grips while positioning the elbows at a 90 degree angle.
Push your body firmly against the vertical pad with your arms. Remove your feet from the assisting steps.
You should now be suspended in the air. Slowly with control raise legs up until they are nearly vertical to the ground, keep them straight if possible.
Slowly lower legs back down to start position.