When you place the thenar space
of your hand (the area between your thumb and forefinger) up against the bottom of your breast (usually for guys) and measure how much muscle mass there is in your pectorals. usually, if you have big pec muscles, then you will have greater hang time
Rob: Dude, I need to start working out my hang time is low
Bob: I know man, you are looking a little thin.
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