The vibration plate creates a high frequency vibration which causes a stretch reflex within the body. This means that the muscles contract involuntarily so creating the effects of exercise without the exertion of conventional exercises. The Power Plus Vibration Plate is fitted with yoga straps to enhance its potential for improving the upper body and arms. Extending the straps in different positions works different muscle groups, pulling against the resistance of the straps further the muscle fibers for growth and toning. Just 10 minutes on the Power Plus Vibration Plate is equivalent to 60 minutes of conventional exercise. You can begin to see results using for 10 minutes 2-3 times a week as part of a low fat and low calorie diet. Maximum user weight: 300 lbs. Maximum Power 1.5hp. Input Power: 600W. Input Voltage: 100-120v. Frequency Range 50-60Hz. Speed Range 1-50. If you suffer from joint problems, have a heart condition or use a pacemaker, we recommend seeking medical advice before using a vibration trainer.