- A spinal disc herniation (a slipped disk or a ruptured disk)
- Strong backache
- Severe pain or acute damage to the spine
- Pregnancy after 12 weeks
- Bad tolerance for stretching or poor stretchability
- Cardiostimulator
- Epilepsy
- Acute inflammatory processes
- Advanced osteoporosis
- serious infectious disease
- After injuries and operation of the spine or joints (especially joint replacement)
- After using alcohol or other drugs
- Osteosclerosis in an advanced stage
- Bodyweight about 120 kg
- Genetic pathologies of vascular walls
- Varicose veins (expansion of the vessel walls)
- The beginning of the menstrual cycle
- Headache
- Brain swelling
- Long-term high blood pressure
- Serious infectious diseases
- Arthrosis or arthritis (small joints - rheumatism)
In some cases, it is possible to lift a person facing up or not lift; just reasonably expand to keep the body on the ground. All cases must be considered individually.