Put on your science hats, this video is an interesting one. Gresham College has been giving free public lectures since 1597.This one sets out to answer questions like “How does size affect performance? Why do some sports have weight categories while others don’t? What types of lever are employed in sports events like gymnastics and wrestling”
Skip to 20min mark if levers and combat sports interest you. brief discussion of most efficient levers in Judo and Wrestling.
Skip to 25min to see how easy the karate party trick of breaking bricks is.
Skip to 30min forces involved in gymnastic “big swing” on the high bar.
Skip to 40min mathematics, statistics and weightlifting. Strength, size and proportion.