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How should you train? Fast twitch vs slow twitch muscle fibers.

Fred Hatfield squatting

How should you train? Fast twitch vs slow twitch muscle fibers.  Fred Hatfield AKA Dr. Squat was an American world champion powerlifter. He is known for setting a squat world record of 1,014lbs at the age of 45 which was at the time, the heaviest squat in world history. He also attained a PhD in […]