In a survey performed at my gym, the best bjj submissions for beginners are rear naked choke, triangle, kimura, arm bar, guillotine, and arm triangle choke which all can be effectively learned as part of jiu jitsu basics.
For the question, how dangerous is a purple belt in brazilian jiu jitsu vs untrained individual, they should be able to defend, control, and submit nearly any untrained opponent. They should have technically efficient movements and vast experience of performing jiu jitsu techniques in live sparring situations.
To answer the question, how long does it take to learn jiu jitsu, it takes ~6 months to 1 year to learn jiu jitsu. This includes learning all of the basic goals, positions, and submissions.
There are a lot of factors to consider, but to answer the question how often should you train jiu jitsu, on average you should train jiu jitsu three times a week especially when beginning bjj in order to progress in the sport.
For adults, every jiu jitsu belt in order is white, blue, purple, brown, and black. At the start of each belt, it will be clear or plain then you will be awarded degrees in the form of stripes on your belt to signify progression.
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For some jiu jitsu statistics, these are the percentages of people that make it to each belt level in bjj:
Blue Belt: 25%
Purple Belt: 13%
Brown Belt: 7%
Black Belt: 5%
After a blow to the ear if it shows signs of swelling, fluid can build up and eventaully harden after 7-10 days.. If you are susceptible to cauliflower ear, you will likely see signs within the first 2 years of your bjj training. However, if you don’t notice any swelling or lasting damage to your ears duing that time, the odds that you will get cauliflower ear during your training are very low.
There are benefits to training both:
However, if you want a more fast paced, realistic, and wrestling-influenced type of training no gi bjj may be best for you. No gi has been rising in popularity and is certainly more popular in terms of viewership as well as its use for MMA.
If you prefer a slower paced, slightly more technical game, that may not exactly mirror self defense situations (due to the gi and gi grips), you may want to train gi Brazilian jiu jitsu.
Yes, you can put your gi in the dryer. However, they can shrink slightly even if they say “pre-shrunk”. I do recommend putting gis in the dryer to better sanitize them. Another good recommendation is to get your gi slightly bigger and then machine dry it so it shrinks a little to your size.