How did Michael Jackson achieve a 45-degree tilt in the MV Smooth Criminals?

According to a comprehensive report in The Times, the great dancer Jackson has a symbolic movement-standing, leaning forward and leaning back. The secret is that he invented "anti-gravity dancing shoes", which can make the whole person lean forward 45 degrees without falling down. In order to enhance the visual effect when dancing, Jackson often designs some movements of leaning forward against gravity. Jackson tied a safety belt around his waist to complete this action, so it is unrealistic to see the action of leaning forward 45 degrees+rotating in the MV. Because the rope tied to his waist is impossible to install and disassemble in the live performance, and it will also limit his body movements, so he is determined to invent "anti-gravity shoes." Jackson and two fashion designers left a hook position at the heel of the special shoes. When he wants to lean forward, he will lift a row of hooks, buckle his shoes, and then perform a leaning forward performance. Of course, even so, it is inseparable from the hard exercise, careful rehearsal and running-in of dancers such as Jackson, as well as strong back muscle and body balance control ability. Michael Jackson's invention was patented by 1993.