Yes, but not for what you may think. Ritualized shouting and flailing is cathartic and great cardio. And when you’re doing it in a regular group, you don’t look as dorky (see: Line Dancing) and peer pressure will influence you to stick with it – and that’s the biggest failure mode of any workout plan.

Also, stretching is neat. Sometimes there’s meditation. Always there’s making noise and angry faces.

Somewhere, in there, you may learn two things: how to dodge something coming at you; and that you should always try to flee if you can, flee if you almost can, or negatively reinforce the person hurting you until they stop and then you can flee. The cardio helps with the fleeing.

And I can’t under-state the utility in fleeing. I’ve done the hi-ya, twirled a stick, played shooty-pow-pow and rat-a-tat; and, still, fleeing is the option with the best outcome.