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BJJ Gym Attendance Data Analysis

 BJJ Gym Attendance Data Analysis As a part-time Brazilian Jiu Jitsu instructor I sometimes use my data skills to assist the gym owners with answering gym business questions by providing metrics and analysis tools with their data. The dashboard below is a recent remake of an old bespoke analysis done for a gym a few years ago.  All data in the dashboard was pulled from Zen Planner and has been anonymized.  Zen Planner is an attendance tracking application that gyms can install on a tablet.  Customers use the tablet to check in when they arrive at the gym and select the class(es) they are attending.
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The Power Bar Theory of Brazilian Jiu Jitsu  It started with a variation of question that I often hear. How does a hypothetical 150 Pound - 60 years old Blackbelt with average athleticism fare against a super athletic 250 pound 25 year old guy on the street ? After many variations of what if, It led to the creation of a normalized data set to examine a lot of these What Ifs and the tool hyperlinked here to visualize and explore those scenarios.   < The way I have always thought about this is that each person has a natural power bar that represents their base athleticism.  Absent any training the biggest power bar winds in a fight.  Not all Power Bars are the same even when the person is the same age, weight, and gender because people have different levels of natural athleticism (speed, strength, timing, etc).   A given person could range from being naturally very unathletic to being naturally very athletic and the proportion of folks that fall al...
 A Brief Early History of Brazilian Jiu Jitsu:   Brazilian Jiu Jitsu (BJJ) is a descendent and derivative of modern Judo with influence from western wrestling, that has been shaped into a distinct and constantly evolving martial art since its initial introduction to Brazil in 1909.  Japanese Samurai Origins of BJJ:  Jujutsu is the general term applied to traditional Samurai fighting arts that existed prior to the Meiji Restoration in Japan and included techniques for striking, grappling, pinning, throwing, and systems of armed combat using a variety of weapons and armor with an emphasis upon swordsmanship. Judo was founded by Kano Jiguro as an amalgamation of two traditional Japanese Jujutsu schools that existed prior to 1876 when efforts of the Meiji Restoration effectively outlawed the Samurai class in Japan, most visibly, by forbidding the wear of a sword. Kano’s Judo also included techniques adapted from western wrestling such as kataguruma (“shoul...
Data and Brazilian Jiu Jitsu   Have You Taken the Survey Yet? A survey of attitudes about the use of Brazilian Jiu Jitsu by Law Enforcement Officer (LEOs) is finally up and ready! Check out this page here to find links to the survey and analytics using MS Power BI. Data submitted to the survey is updated hourly into the Power BI Survey.

Brazilian Jiu Jitsu For All Police Officers

Brazilian Jiu Jitsu Brazilian Jiu Jitsu For All Police Officers As a practitioner of Brazilian Jiu Jitsu I know for a fact that, at 50 years of age, I can easily control just about anyone who has not trained. I routinely handle 20-something 200+ pound muscular men with ease when they come in off the street to try it out. It doesn't take much training either to do this to untrained folks. I have been able to do this to just about everyone since I was a blue belt (which takes roughly 1 1/2 - 2 years of regular training to get). The article linked below highlights not only how effective BJJ would make Police at dealing with resisting opponents, but it also points out aptly that a regular practitioner of BJJ understands how not to hurt someone they are grappling with in spite of being potentially lethal with dozens of choke holds and joint locks. In short, BJJ practitioners know how much pressure is too much pressure, and when to ease up not to hurt someone, but not so much that they l...