I am a beginner at calisthenics and was wondering if someone could tell me the most basic workouts along with their workout and rest routine. I was able to do about 6-7 chin ups, 15-17 push ups 30-40 crunches, 20-25 windshield wipers etc, in good form couple of weeks back, but now the reps have decreased. Is it because my muscles are too sore? If so, what do i need to do? I currently have a knee injury as well so I'm looking for upper body strengthening alone.
I've always considered it good practice to do calisthenics every day, if being good at calisthenics is your goal. Generally speaking calisthenics are useful for improving cardiovascular endurance, and the best practice for that is doing them often. Maybe you break up which exercises you do which day, ie chinups and prone bridge one day, pushups leg raises another, and do one group every day.