Zach Even-Esh is quickly becoming one of the leading strength and conditioning coaches in the United States. What is exciting about Zach's methods is that he incorporates old-school, gladiator type training with the use of weights. For example, he has his athletes use rocks, sandbags, tires, and sledgehammers to develope strength and muscle endurance.
Zach's company, Underground Strength Coach, is located in Edison New Jersey. Check out two of his websites, http://zacheven-esh.com/blog/ and http://www.undergroundstrengthcoach.com/.
I have started incorporating his techniques in my workout, as well as the athletes and individuals I train. I have seen quick results using his workouts.
I encourage all to pick up a rock or a sandbag and get to work. Maybe flip a tire a few times. Not only will your strength increase, but you will also feel increased energy as you train outside with gladiator techniques.