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.
Final Say - If you are a Beginner to Weight Training or simply short for time { although it takes only 30 minutes to do my recommended workouts }, you may use the Single set method. But if you are looking for real gains, I highly suggest you use at least 3-4 sets per exercise before you move on.