All that said, remember: you shouldn't have to count calories. Keep it simple and you will gain. If the number on the scale isn't getting bigger, eat more. BUT WHAT ABOUT CARDIO? Think you need to hit the stationary bike or run to maintain or improve aerobic capacity? This isn't always the case. Doug McGuff MD explains: If you are intent on improving your aerobic capacity, it's important to understand that your aerobic system performs at its highest when recovering from lactic acidosis. After your high-intensity workout, when your metabolism is attempting to reduce the level of pyruvate in the system, it does so through the aerobic subjugation of metabolism ... since muscle is the basic mechanical system being served by the aerobic system, as muscle strength improves, the necessary support systems (which includes the aerobic system) must follow suit. If you're a sprinter or marathoner, can you prepare with weight training alone? Of course not.
free fatty acids, and triglycerides. Glucose can be readily restored when ATP demand and glycogen are the preferred substrates for is low. In living muscle, when activity is muscle metabolism and can be utilized either intense, this system can be advantageous, as aerobically (oxidative phosphorylation) or it consumes H+ and thus can reduce the anaerobically (anaearobic glycolysis). Lipid muscle cell acidosis that is associated with and lactate utilization require oxygen. Lipids anaerobic glycolysis. Another advantage of are a very energy-dense storage system and the system is that the catalyzing enzyme is are very efficient with respect to the high located very close to the actomyosin ATPase amount of ATP that can be generated per unit and also at the sarcoplasmic reticulum (where of substrate. However, the rate of synthesis calcium is actively taken up from the sarco-
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