Planks: Abs and Back Workout

Planks are tough, I will admit that. But with training and practice, you can build up the amount of reps and time for each plank. My goal is a 4 minute plank. The most I have done is 3 and a half minutes back when I was in great shape. Now I can barely manage to pull off a 1 minute plank. But planks are a great workout and will help any runner. These mainly affect your lower back, but do affect your core. Here is what a good plank looks like. I also do side planks as well.