Andrew Sheaff on Instagram: "Underwater kicking is a skill that swimmers need to master, and they are missing out if they don’t. Resisted swimming is one of the most powerful ways to learn this skill. It helps swimmers feel their skills and it helps them develop the physical qualities necessary to execute those skills at a really high level. We’re going to use 3 different strategies to help swimmers improve. First, they’re going to vertical kick in streamline holding a small weight. They’re goin