Cardio (high-intensity interval training), is supposed to be the most effective muscle preserver exercise but this is not the fact .This exercise require strenuous effort with a short resting period. And if you are considering for a low-intensity cardio, you might diminishes your muscle gain or even hard-earned muscle will all gone. Through intense and fast cardio workouts the enzyme AMPK is activated that inhibits your muscle growth. Another misconception is about carbs, people will try to lose fat while gaining muscle, so they avoid consumption of carbohydrates.
If you cut off too much carbs you are not able to perform high-intensity activities and it would be quite difficult for you to lift up those high weights through which you can grow your muscles. Another myth is about High reps with low weight versus Low reps with high weight. This is just a myth; High reps are not responsible for your fast twitch muscle fibers it could be attain via lower reps.Fast twitch muscles are meant for short and high intensity activity. Thus there are many misconceptions about the fitness work outs and regimen therefore before you take a start research well what to do and how to achieve your target.