Here are 5 random muscle building tips that may make a big difference in your training. – Don’t exceed 5-6 reps on most of your warm up sets. Your first set could consist of a very light weight for 10-20 reps just to get loosened up and get the blood flowing but beyond that you want to keep the reps low. The reason for this is that you don’t want to build up too much lactic acid or accumulate too much fatigue with your warm ups. – Don’t stretch before your workout in the hopes of preventing… continue reading.