James' max vertical is said to be around 40 inches. Biles' max vertical is harder to determine because gymnasts jumps are measured differently, but she can get her body about 53 inches off the floor (according to this analysis).
How high can a gymnast high jump? It's said in the comments that gymnasts can jump higher than 2.5 m if they do flip-flops or something, however, the current world record for high jump is lower than this. Read More...
The term sensei includes several levels of meaning. Some martial artists equate it with "master", but this is a meaning that is not used much in our academy circles.
What rank is higher than sensei? Godan and above is considered as the senior ranks at which sensei can be addressed as Shihan. However it would not be considered impolite or rude if you address a senior instructor as sensei even if he is 8th or 9th dan. Read More...
Brazilian Jiu Jitsu. Brazilian Jiu Jitsu is considered to be the most difficult martial art to learn. Even to athletic students, mastering this discipline is unlikely to come easy.
Which martial art is best for street fight? BJJ is a grappling based martial art and one of the most useful fighting styles for street fighting. Even though it focuses on ground fighting, BJJ matches well against most striking and other arts. Read More...