i used to be able to do like 15 pull-ups when i was 27 trying to join the army, i wanted to get into recon or special forces

i know that pushups have a substantial effect on core strength but nothing like leg lifts and situps, my point was to try and balance my upper body work with pullups with a new exercise that would touch my lower body, and squats are the easiest and have the most direct benefits to my current lifestyle

most likely pushups are what i will add next week, i'm just doing that thing of "1% change every day is better than 10% change in one day"... so, i have started to do something, and i want to add an easy, useful second something that will reward me before i decide to add more work to my schedule

burpees are great, i'm just in that stage where i've fallen into really bad condition due to dietary health influences and toxic food additives and such... i am only just starting to get free of the worst of those symptoms (muscle weakness especially) that building condition is now finally viable

when the fitness things say "consult a doctor" yada yada yada, that can be replaced with a simple rule, small steps, baby steps, and for me, first step was pull-ups, because it is relatively trivial but also very interesting for my current mountainous terrain... and so, in that same vein, the next logical step is to try and accelerate my leg strength so i have two of the ingredients required to do a lot of trekking around this beautiful mountainous place

also, thanks for responding, i'm way way in worse condition than realistically can do much in the way of burpees or pushups at this point