I had to look that up. Kadency effect is a vague description of resonant behavior of the crankcase, intake, cylinder, and exhaust all together. The prime example seemingly a pulse jet, ( a tuned pipe with no engine, lol ) Today it's understood as a combination of components and events. Doesn't even exist without a tuned exhaust?
Have you ever been driving in the car and made a turn, then feel the heat/AC blow at you for a moment from a direction different than usual? The air exited the vent headed in a direction and your car turned while it was still moving. It would seem that, at several thousand RPM, inertia of the transfer charge would have little impact overall, but maybe it still shows up.