Strength Training

While most of us might want to strength train on our easy days, it turns out that we should actually be doing it on our hard days. Why? Well, it's important to keep your easy days easy (and your hard days hard). As strength training will leave you fatigued, which may compromise your running (which is really the key focus of your training), opt for strength training after you run. This will prevent you from trying to lift more than you should, which will help prevent you from getting injured (as long as you are not overly-fatigued and can perform the exercises correctly). Also of benefit, strength training apparently burns more calories and speeds recovery (it gets the blood pumping through your muscles again, which flushes out lactic acid).