Over the past years, we have witnessed one very common mistake people make with their lunges, especially when they start to get tired. What this mistake does, is take away all of the potential benefit of strength gain in your quad. MTNTOUGH Coach Jimmy has developed a simple solution to the issue by doing your lunges against a post. All of us here at MTNTOUGH have only been doing these new lunges in our workouts, and the benefits have been immeasurable.