How many repetitions of elbow exercise should i do to strengthen my tennis elbow without injuring it?

Low weight, high rep: After an initial period of rest, most patients do best with a rehab protocol based on low weights and high repetitions. In my practice that means two sets of at least 15 reps in each set. If you play a sport, you can gradually resume the sport as symptoms resolve. A tennis elbow strap may be useful to minimize symptoms. For new onset of pain, a course of nsaids may be prescribed also.