Climbing strongly trains your upper back, your forearms, biceps, legs and upper back. (http://healthyliving.azcentral.com/muscles-worked-during-rock-climbing-3416.html) However, if you don't pay any ...
(This is related to "What hand and finger exercises help with climbing?" but asking for what can be done when not climbing/training.) Like most climbers, I don't get to do as much as I'd like, and I ...