Are swimmers missing out on performance enhancing mouthwear? A Jockology article led me to investigate the possibility a "performance enhancing mouthpiece" for swimming.
What is a performance enhancing mouthpiece?The theory behind possible performance gains comes from jaw position and the compression of the temperomandibular (TM) joint. According to UnderArmour's consumer brochure, you have a natural "fight or flight" reaction to clench your jaw during physical activity. This jaw-clenching compresses the TM joing, which then causes a "release of excess amounts of performance-sapping hormones (like cortisol) that produce stress, fatigue and distraction."
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