Cardio Training - For Any Goals?

You'll have probably heard something along the lines of 'cardio kills gains'. But is this really true? Mostly, no it is not true. Some people will tell you it is. Some people will tell you it's not. I will tell you it depends. Lets look at the physiology. As we all know, to make 'gains', you must resistance train and have enough calories. Cardio can burn a lot of calories, which is why it can be so effective for losing weight. And, why it can be tougher to build muscle alongside heavy cardio. Muscle building from weight training generally results in increased Type 2 muscle fibres. Type 2 muscle fibres are larger than Type 1 muscle fibres, which are developed with cardio training. So, logically, to build more muscle you want to focus more on the Type 2 fibres. However, cardio improves our heart, lungs, blood vessels and blood. This improves our bodies ability to deliver oxygen, nutrients, hormones and everything else ...