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Relax the jaw, teeth clenching reduces isometric force production: http://t.co/OPnuOqFVeG @swimmingscience
Relax the jaw, teeth clenching reduces isometric force production: http://t.co/OPnuOqFVeG @swimmingscience
Relax the jaw, teeth clenching reduces isometric force production: http://t.co/OPnuOqFVeG @swimmingscience