Latissimus, Trapezius, Shoulders, Core, Chest, Triceps, Back
When you are in a straight bar dip position, start swinging your legs.
Swing your legs upside so you get parallel to the ground. When your legs are moving up off the ground, bend your elbows performing a dip.
When legs are returning back to towards the ground, push yourself up with your arms.
Progressions And Regressions