價格：免費
更新日期：2014-12-11
檔案大小：540 MB
目前版本：1.3
版本需求：需要 iOS 7.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Belt Level: Mid-purple to low-black.
Emphasis: Applying pressure from the top positions as well as from the bottom positions.
This App features 40 minutes of high level information from Professor Roy Harris, a fourth degree black belt in Brazilian Jiu Jitsu, and the instructor of Roy Dean.
The seminar topic is how to create and use pressure in the Brazilian Jiu Jitsu game. Professor Harris was inspired to explore this realm after his training with Rickson Gracie, who felt remarkably different from the other Gracie family members because of his mastery of pressure, and because of the pressure he felt from Rigan Machado and Joe Moreira.
This is an advanced topic, requiring practitioners to have an intermediate skill level in the overall BJJ game.
支援平台：iPhone, iPad