Underwater Dolphin Kick

Sometimes called the 'fifth stroke,' the underwater dolphin kick is the fast, whip-like undulation you do off every wall and start (up to the 15 m mark). It's powered by your core, not just your legs: you create a stable streamline and send a wave from your chest through your hips to your feet, kicking in both…

Coaching onlyA phone camera can't grade this one reliably, so TrueForm teaches it step by step instead of pretending to score it.