propecia cost

By

Power, Speed, Endurance CrossFit Expert Brian Mackenzie

Strength training for distance runners & triathletes

brian_mackenzie_crossfit1Power, speed and endurance are the three essential components of high performance in most sports. This week’s guest is an expert on developing them in a coherent and comprehensive way.

Brian Mackenzie is the creator of CrossFit Endurance, a fitness methodology and network of gyms across the country focused on strength and conditioning for endurance athletes. And Brian is author of the book called, what else? Power, Speed, Endurance.
power_speed_endurance_coverHe is also co-founder, along with double Olympic gold medal rower Erin Cafaro, of an innovative energy supplement that uses fat and protein as well as carbohydrate called 3Fuel.
Brian_Mackenzie_CrossFit_running