Designed to target common problem areas (legs, bums and tums), LBT classes will help you to build muscle and tone up. LBT is a full-body aerobic workout that aims to tone up thighs, bum and stomach. Shape up and burn fat as you lunge, step and squat your way to fitness using both weights and your own body weight. LBT is helpful if you want to lose weight or even for those who simply want to improve their fitness levels. The focus is very much on toning and tightening.