Functional Patterns on Instagram: "If you’ve spent any time in martial arts, you already understand what real power actually is. It’s the ability to connect your entire body into a desired range of motion so force can travel through you like a kinetic chain. It starts from the ground up. Your feet drive horizontal vectors into the floor, friction gives you the leverage to lift against gravity, and the whole structure works together to transfer force through every muscle and joint. Bruce Lee talk

Relative Strength Index (RSI): What It Is, How It Works, and Formula