The black-belted trainers at Florida Martial Arts and Fitness Center condition and arm students with self-defense skills that may come in handy in real-life situations. Students can focus solely on self-defense techniques with krav maga, an intuitive street-fighting style developed by a decorated Czechoslovakian athlete in the 1930s, or tae kwon do, which builds a sense of confidence as well as snappy reflexes and a collection of stylish belts. Participants in one-hour kickboxing classes can burn up to 1,000 calories, and yoga classes build inner strength and balance. Field-day classes take fitness training outdoors for sunshine and fresh air. Athletes who attend a monthly weapon-disarming seminar learn to strip assailants of knives, guns, or wooden marshmallow spears.