Crawling is the fitness trend from the USA that fitness enthusiasts, Hollywood stars, and supermodels swear by. And rightly so: this three-dimensional movement engages all muscle chains and connections simultaneously, making it the ideal workout for a toned body. The even distribution of stress across all body parts also relieves the spine, helps with back pain, and promotes better posture. This holistic training on all fours not only strengthens muscles and the spine but also stimulates the brain. Crawling connects both hemispheres of the brain, keeping you mentally fit. As one of the first to recognize the potential of this fitness training, physiotherapist Johannes Randolf developed his own crawling program, which he presents in an easy-to-follow format in his book "Crawling Fitness." After an introduction.