Matt: Why do you guys like 5 reps so much? How often do you utilize other rep schemes?
Rip: On page 200 of Starting Strength figure 7 integrates a huge amount of information about how human physiology responds to exercise, and provides a very clear way to see the relationship between the number of reps in a set and the effect on the body.
(this can be seen at
www.startingstrength.com.)
Five reps is good because it provides a general strength response, and strength is cool.
I use more reps when I want to produce a specific hypertrophy response, such as bicep training. Now, not many people care how strong their biceps are, since there aren’t many strict curl contests anymore. They just want them to be bigger. So we train biceps for 10-15 reps, and do fives for them occasionally so that we can do more weight on the sets of 10. Lower reps are used for the obvious stuff, like getting the squat, bench, deadlift, and press up, and for the Olympic lifts since they are explosive/technique movements. Nobody does sets of 20 snatches around here, at least not since I tried them that time and made such a mess on the platform. But this is all basic stuff that most people know. Fives are just a good number of reps: enough work to make you grow, not so many that the spotters wander off.
Glenn: I answered a question in another interview recently by saying that I knew I could come up with a detailed scientific answer that demonstrated my command of muscle physiology and made me look really smart, but that it would in reality be a load of bull. Pretty much the same thing here. I’ve tried other things, I always come back to multiple sets of 5 simply because I’ve yet to find anything else that works as well. For all our strength exercises, squats, presses, things like that, we do most of our work with 5 reps.