You don't need a full hour to get in a good workout. In fact, in just 30 minutes, you can torch calories, burn fat, and build muscle all at the same time. These workouts are a little bit of everything ...
Our Sub-4:30 marathon plans, encompassing five to six runs per week, are aimed at beginner runners who are regularly running a minimum of four times per week. 3-4 runs per week Our Sub-4:30 marathon ...
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