Wikipedia explains judo as:
Judo (柔道 jūdō , meaning "gentle way") is a modern martial art, combat and Olympic sport created in Japan in 1882 by Jigoro Kano. Its most prominent feature is its competitive element, where the object is to either throw or takedown one's opponent to the ground, immobilize or otherwise subdue one's opponent with a grappling maneuver, or force an opponent to submit by joint locking or by executing a strangle hold or choke. Strikes and thrusts by hands and feet as well as weapons defences are a part of judo, but only in pre-arranged forms (kata) and are not allowed in judo competition or free practice (randori).
Gee, sounds violent! Since I didn't even really know what judo was, Michael simplified it as a martial art form of wrestling. Which is exactly what it looks like to me as a spectator. This must thrill Michael since wrestling is very big in the Midwest, and he himself has experience as a wrestler. Anyway, the boys have been enjoying the exercise, discipline and learning the moves. Here they are in their gis...
And here they are practicing their moves...
The only downside is Landon who isn't quite yet at the allowable age (6) and complains every time the boys leave for judo, and he gets left behind. We've tried to remedy this by letting him dress up in Jayce's old karate uniform and letting the boys "teach" him some karate moves. :)