Forums >Cross Training>Weight training and injury prevention for runners
I probably wouldn't think of it that way. I've never heard of the 80% thing. Just stick to compound, multi-joint exercises like squats and deadlifts and you'll work all your muscle. For upper body, push-ups, bench press, pull-ups, military presses are the ticket. Don't overthink it. Keep it simple and you'll get the best results in the shortest amount of time.
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