If Jorge Gurgel looks familiar, it may because you saw him on The Ultimate Fighter 2. The owner of JG MMA Academy and Fitness has been building up his expertise in martial arts ever since he began training in college, which has led to a second-degree black belt in Brazilian jujitsu and a stint on said reality-show competition. Now, Gurgel harnesses that prowess and shares it during classes alongside his fellow instructors.

During Brazilian jujitsu classes, instructors with black belts in the discipline instill self-defense moves such as joint locks and chokeholds, catering them to a younger audience in kids' jujitsu classes. Muay thai kickboxing zeros in on striking techniques from the elbows and knees, and boxing burns fat and boosts endurance and agility thanks to rapid jabs, punches, and right hooks.