Seiyaa is a kiai, which is basically the same kind of yell that Americans usually associate with the word “HIYAA” as yelled by stereotypical ninjas and karate practitioners.
I originally heard the word on Power Rangers as a child because it’s Jason David Frank’s (Tommy’s actor) favored kiai but as far as I can tell it’s actually much more common in actual martial arts circles than “Hiyaa.”
The general idea is that you’re loosening up your chest for a big push. This actually works; I’ve done basically the same thing while doing heavy fast work at my old job and I noted a marked improvement in my own endurance.
I originally heard the word on Power Rangers as a child because it’s Jason David Frank’s (Tommy’s actor) favored kiai but as far as I can tell it’s actually much more common in actual martial arts circles than “Hiyaa.”
The general idea is that you’re loosening up your chest for a big push. This actually works; I’ve done basically the same thing while doing heavy fast work at my old job and I noted a marked improvement in my own endurance.
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