Sean OBrien

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15. Sprinting in a pre-fatigued state is not only harmful for muscles, but also the central nervous system. Athletes should only sprint when 100 percent rested and energized to deliver a peak performance. Extensive warmup and technique drills should be performed before delivering maximum efforts.
Sean OBrien
Sprints
Primal Endurance: Escape chronic cardio and carbohydrate dependency and become a fat burning beast!
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