Core strength training workouts can be used at the end of your workouts.  There are two types of workouts available for your core.  One involves equipment that can be completed in a weight room, and one that can be done without equipment in a gym or hallway.  The plate or medicine ball workouts are dynamic in nature and will train both the core and the body as a whole.  They can be used as a conditioning tool after a regular training session and can be utilized during both the in and off seasons.