Shane Trotter, CSCS, ISSA, is the Strength & Conditioning Coordinator for Mansfield High School (Mansfield, Texas). He specializes in clarifying training principles and bringing a naturalist and essentialist philosophy to training. He's written many articles on strength and conditioning and youth development for his blog and Breaking Muscle. For more on developing will power, strength, speed, agility and physical vitality, go to www.amateurstrength.com.