Rest: How long is long enough?
How long is the optimal time to rest in between work outs of the same muscle group? I've read and heard many different opinions about this. Some say a week is enough, some say 48 hours... this is a huge difference in opinion. I want facts.
Obviously you should never work out when your muscles are still sore, but the only time my muscles are really sore is if i haven't worked out for a month and then hit the gym. Once my body gets used to lifting, I no longer experience soreness on the same level (if at all). So how do I know when my muscles are fully prepared for another heavy weight raping?
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