GET FULL WORKOUT IN 10 MINUTES You'll have more speed, stamina, strength, flexibility, mobility and coordination! Plus you'll see less cellulite, experience collagen improvement and fat reduction. Best of all, you'll get these astonishing benefits without jarring or exhausting exercise! The stretch reflex is occurred when the doctor taps your knee with hammer, this causes a reflex extending the leg. Hyundai Health2000 generates continuous special stretch reflex called Tonic Vibration Reflex in all involved muscles. This unit is only a few month has been barely used. This was bought from a doctor that sells the machine Machine is comparable to the Turbo Sonic Home Unit. $3500 or best offer call toni