The location of the hole (perforation) in the eardrum also effects the degree of hearing loss. If severe trauma (e.g. skull fracture) disrupts the bones in the middle ear which transmit sound or causes injury to the inner ear structures, the loss of hearing maybe quite severe.
1 Resting 1-3 minutes between sets is probably ideal for you. 2  The higher your training intensity is for a given exercise and/or the more demanding it is on your body, the more you should stay nearer to the 2-3 minute range.
Do a set number like 100 pullups, 200, pushups, 300 situps in a max rep set round robin circuit. Your goal is to get the 100,200.300 in as few sets as possible resting 1 min after each max rep set of pullups, pushups, situps (2 min max time on each).