Jesper Mårtensson | Athletic Performance Coach on Instagram: "There are endless plyometric variations out there. You don’t need all of them. What matters is choosing plyometrics that hit the exact sprint qualities you want to express. When you train force, direction, and leg speed in the right positions, you don’t just jump higher. You accelerate faster, change direction sharper, and carry speed further down the pitch. That’s why I keep coming back to a small handful that actually transfer to sp