im not into heavyweight muscle building but i need to have stamina for my bootcamp practice which requires lots of energy .
of course i need to have muscle to keep the pace of the cardio exercise.
What should i get for building muscle to do a 1 hour workout which is mostly carrying weight, running and jumping.

if im not mistaken when someone run out of breadth, u probably had hit the wall. lack of carb to fuel for energy. i guess u need to eat more carb for u to sustain your workout.