Instead of a direct force analysis, videography eliminates a plethora of possible errors stemming from the use of another object in the system. Rather than measuring the force and rotational aspect of a bag that is punched, for example, punching the air allows measurement of speed without impact, which should still correlate to impact power.

The technique for analysis was a punch because it is one of the foundational strikes in martial arts. Since martial artists learn this as one of the first techniques, low- to high-level belts would have been instructed on how to punch already.