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.
After 4 weeks (12 sessions) you should do a regimen of 4 sets. The first 2 sets would be to perform as many push-ups as you can in 30 seconds with your knees down. Then 2 sets of as many as you can for 20 seconds with your knees up. Remember to first warm-up and stretch prior to any physical training, and always use proper form.