Well, i wanted to share my experience, I lost about 30 lbs of weight with hard exerciseI lost about 30 lbs of weight with hard exercise. couldn't go to gym so i orderes inversion machine and jumping ropes. it was gr8, but believe me it was really hard, anyways , i want to lose more weight as i am 160 lbs, i think 140 lbs is good for me. should i change my diet? will it b more effective with exercise i am doing?