How to Use DUP for Bodybuilding & Powerlifting ? Part 1

[Arnold]

by Chris Marzarella Pavel Tsatsouline once quoted in his book Power to the People (1), that the way to do more chin-ups is to “grease the groove” by doing lots of chin-ups every day. What Pavel was stating was that, repetitive and reasonably intense stimulation strengthens the nerve impulse to the muscles involved, making them

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