Slow or Fast Twitch Tests

Has anyone tried to determine if any of there muscles are predominantly fast or slow twitch? If so, what test did you use? I know certain muscles are usually a certain fiber type such as hamstrings being fast twitch. I was curious about testing other muscle groups such as arms and shoulders.

If you find your 1RM then see how many reps you could do at 80%, I wonder if that would tell you. The average person should be able to do about 7 reps but a fast twitch person would maybe only be able to do 2 or 3 reps.

Any input would be great!

Read the “train right for your type” article at T-mag by Ian King. This issue is more complex than most people think.