Interval workouts involve short bursts of very intense work.

Pace workouts seem to be great for short and long distance runners.There are various pace workouts available online to find one to suite your needs.There are also charts and online support aswell.

The Naked Commando System offers intense at-home workouts for those with a busy lifestyle. Another resource for short intense workouts is the website shahtraining.com.

Core Performance offers full-body strength workouts, pillar strength workouts, cardio workouts, and more depending on the locations services. Some locations have pools, which allows for swimming workouts. Some locations have tracks, which allow for track workouts.

Boot camp workouts are workouts that are supposed to be very difficult and rough. Although most are no where near a military boot camp, these workouts will get you into excellent shape.