In general, you CANNOT be huge and jacked and still have a high level of endurance. Being big and muscular, and having high endurance are two completely counter productive things. Most people don’t understand why. That's why you’ll have athletes trying to get bodybuilder sized muscles, but also trying to excel in their endurance sport. When I was in high school, I packed on 50 pounds over the summer. Before that, I was a 6 foot 140 pound rail and my endurance was fantastic. Obviously important as a basketball player. But as my weight went up and I gained more muscle, my endurance started to fade. By the time I hit 190, my endurance was notably worse. This is because when you walk around with a greater level of muscle mass, your body needs more energy to function with it. Moving a 240 pound physique as opposed to a 175 pound one, requires a far greater amount of oxygen and blood flow. The end result of getting bigger is ALWAYS a severely hindered level of endurance and getting gassed out. While you may be stronger and bigger, extra muscle mass will always tire you out more. That's why at the Olympics, the sprinters have the most muscled athletes and the marathon runners look like malnourished sticks. Strength and muscle are directly linked to explosive quick movements. But oxygen gets used up more quickly than if a skinny guy did those same movements. Often times individuals are shocked and frustrated when they realize they can’t run a marathon or be a great soccer player if they are overly muscled. Consider this when choosing your goals, because the less muscle you have on your physique, the less your body has to work to fuel that muscle leading to greater levels of endurance. Click here if you're having problems gaining muscle.