>>76338502 (OP)
I’m fascinated by the concept of climbing. It’s one of the few forms of resistance training which isn’t lifting, yet you can get decent size gains in your core, back, and forearms without ever lifting a single weight and without it feeling like work, it just feels fun. I can’t think of anything to compare it to in terms of muscle growth aside from lifting itself. Swimming isn’t effective enough, wrestling requires you have other people, boxing is basically just cardio, gymnastics is very physically and mentally fatiguing, ect.
It’s an avenue for guys that feel like lifting is too tedious, difficult, and boring. You’re not going to get huge, but it’s literally the best compromise one could make if you still wanted to get some gains without all the effort associated with lifting. Maybe throw in some weighted pull-ups and dips you do at home a couple days a week, and you’re goin to get a decent physique with basically no effort.