Repetition now repetition is made up to key points it's basically going to be full extension to the muscle when the muscles fully stretched out and the full contraction of the muscle when the muscle was punched up and its pull together in short so are petition is going to be going back and forth between that extension and that contraction on every single body parts now repetitions combined together constitute a set source at what saying in your workout you're supposed to a setoff 12 repetitions what you would be doing is 12 times in arrow be going from this contraction position to the extension muscle hd

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