How to tell if you have fast or slow twitch muscles?
Light man can’t jump. Do the jump test.
There’s also the “jump” test to determine your basic fibre type.
Stand still on the floor with your arm extended overhead and a piece of chalk in your hand.
Now jump as high as you can with no external help and at the top of the jump mark the wall with chalk.
12 to 18 inches…….Slow-twitch dominant
18 to 24 inches…..Mixed fibre distribution
More than 24 inches…..Fast-twitch dominant.
This excerpt was taken from the posting below. I have also seen it in books like Scrawny to Brawny. The fingers on the wrist thing I don’t think is accurate. There are other tests.
Is the Jump Manual for me
