I’m brand new to structured training and I’m trying to pick a “challenge” I can stick to for a month or two without getting wrecked. I like the military vibe (discipline, simple routines, measurable progress), but I’m not trying to pretend I’m in selection or anything.
Right now I can do maybe 10 push-ups on a good set, I get winded on stairs, and I don’t really know what’s realistic. I’ve seen 100-pushup programs, couch-to-5k, ruck challenges, and random daily burpee stuff. I work a desk job, have limited equipment (pull-up bar maybe), and I can train 4–5 days a week for 20–40 minutes.
What’s the best fitness challenge for beginners that actually builds a base (strength + cardio) and won’t cause injury? If you’ve got a simple plan or rules of thumb, I’m all ears.