I had a blast regularly using the bosu ball at the gym.
It is a surprisingly fatiguing thing…on the nervous system.
(Though there was one at the bodybuilding gym I actually didn’t use it there. Some strange combination of social phobia (it’d look really weird there, somehow that didn’t stop me at the other one) and the sense of maximizing my time there getting big and strong as it was the closest to perfect place to get big and strong that I’ve ever experienced.)
I found that regularly standing on it (the bosu ball, not either gym’s roof) and then adding exercises such as bodyweight squats, calf raises, and attempting to pistol squat deep, and harder balances like on toes, one foot, or one foot on toes while on it was a nice addition to my training. It carried over in strange places, my ability to power clean, and box jump improved.
Now the bosu ball is a decent chunk of change for a toy to balance on. I’ll likely buy one in the future, I like them, and have an experiment that I want to try on it.
(Lots of bodyweight squats on it as my primary leg work. Could I squat to front kick eventually? What benefits would a high quantity of work on it have? It’d be more be more nervous system engaging than muscular, what would happen to my build?)
But for now I don’t have one…
Luckily when one exercises with the mind of a child there is a strong sense of play…
Winding down from a high volume workout I started to spot land broad jumps between sets of btn presses, saw a brick, and got the idea.
Balance play…by standing on an upturned brick, which was not on the most flat of ground. It wobbled depending on where I’d reset it each time I fell off.
Whatever you’re trying to do, the necessary tool is already available to you. You just have to have an open mind and find it.
The world is there…everything you need to get fit. It’s there.
When you exercise play some, and try some balance work, most anyone could use it, and it’s quite fun.
PostScript : Or you can close your eyes and balance on foot foot for as long as possible. No equipment required. Try it, the efficiency of effort/effectiveness will surprise you.