Working with heavy sleds is great for building leg strength and cardio endurance, but it also builds the core and shoulders as well. Perform drills using the sled, but keep these tidbits in minds:
- Move at varying speeds
- Alternate running with marching (as in the video)
- Drive the sled forward or laterally
- Breathe! NO holding your breathe (try combining the sled with the Training Mask!)
That's cool "starter info". Grab a sled and make it your friend by using it in ways that benefit your overall training needs.