Welcome aboard - you are headed in the right direction. I am an ol', slight codger, who has always had puny arms and started archery late in life (at 56). I use verticle push ups (off doors, trucks, trees, etc.) before I shoot (and every morning at wake up, and most evenings) to keep my shoulders loose, warmed up, and flexible for bow shooting. Best part is you can do 'em anytime, anywhere without attracting too much undo attenmtion. Well, ya do get the occasional, "Why ya tryin' tuh push thet tree over, ol' timer - snicker, snicker?" But, trust me, it helps, and is easy to fit in - often, and regular. Start out with how many you feel good with and build up. Use it as your "potatos", and then do whatever else (heavier) you care too - but alway keep the "VPs" going daily. My experiance - but I did read it in a magazine article by a Doctor/archer back about the time I first got started, and it's been a joint and muscle savior - I'm 72 now BTW.