Inversion boots allow you to recover quickly from compression fatigue caused by jogging, aerobic training, stepping, bicycling and weight training. . Hanging in the inverted position brings instant relief to many forms of back pain and spasms associated with consistent downward gravitational pull on the spine, discs and muscles. Just a few minutes a day are sufficient to spread apart painful compressed discs. Back, neck and shoulder muscles are also stretched, further increasing flexibility and reducing pain.