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Training without analysis isn’t really training at all. It's not about smashing yourself and trying to get as sore or tired or beaten as possible.
Many things are based on opinion or belief—from religion to politics to daily habits to relationships. However, science is the one thing that should escape any form of bias.
It is easy to find research that will support, or that can be manipulated to support any ridiculous claim.
New technology will challenge fitness professionals, and the fitness profession, in new ways.