[thtmnisamnstr]

I'd dispute that. No gi is not easier on the knees, ankles, or shoulders IMO. The slipperiness compared to gi comes with the downside of sudden slipping movements that put your knees and shoulders at higher risk of injury and dislocation. The increased focus on leg attacks also puts your knees and ankles at higher risk. Add to that the seeming slant towards more explosive movements in no gi, and the overall risk of injury should be higher than gi. You likely see more injuries in gi, because way more people train gi than no gi still.

Note: I train gi and no gi and have been for almost 10 years. My biggest injury happened in the gi (broken hand), but I've had significantly more ankle and knee sprains and shoulder dislocations in no gi. Also, the morning after no gi feels like I got hit by a truck compared to the morning after gi.