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The videos are 20-30 minutes. There is no way in heck you are doing enough strength training to require in-between breaks for your muscles,
I don't know anything about the "shred" workouts, so I can't comment on that, but the above in general doesn't hold true. It is entirely possible to get enough strength training in, in 30 mins to require a 24 hour rest period for your muscles. It is absolutely possible.
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As far as the whole "muscle recovery" thing goes, people tend to take that a little too far. Even if you do super intense strength training and cardio for 8-12 hours a day (ie: marines or army basic training) you only get one rest day a week and nobody died or had inadequate muscles. Most everyone that goes in thin beefs up with tons of muscle during those 9 weeks, and all the fat boys build lean muscle and lose lots of jiggle. You can't tell me they compromised results from not taking a "recovery days."
I'm sorry, but the military's methods of training and building strength is an extreme one. The routines they use are meant to effect the recruit *mentally* as well as physically - both in the breaking down and building up. You cannot base the best possible way to train and build strength on what the military does.
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an in-between rest day for a 30 or 60 minute workout is really silly. Your muscles will have the other 23 hours in the day to recoup. Your body only does any heavy duty recovery when you're asleep anyway.
Nope. Not true. The way you build strength is by breaking down the muscle and letting it heal. It's the HEALING part that builds strength. If you don't give sufficient time to heal, then you're slowing the process, and possibly ******ing the muscles ability to grow to it's full potential.
It's just like dieting. I could drop my diet to a flat 1200 calories and drink nothing but protein shakes. Would I lose weight? Yup. Would I be doing it in the most healthy way possible and the way that would allow me to maintain the weight loss? Nope.
Building strength properly means using proper form, eating the proper foods, and allowing your muscles the proper amount of rest.
Any reputable source will tell you the same. They all recommend resting muscle groups. And when so many reliable, reputable, knowledgeable people have the same recommendation, then there is more than just a shred of truth to it.
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