Your Barbaric Yawp = 12% More Strength

If you've seen the video of me lifting the Toyotawhere the subjects were given the suggestion of
you might have noticed the noise I make when Ieither feeling great strength or of great
do maximum lifts. The fact is, I don't think I couldweakness. The subjects demonstrated either
do a big lift like that if I had to be silent. First of26.5% more or 31.7% less strength while
all, it's important to exhale during any heavy liftinghypnotized. (That’s pretty amazing, but who
- static contraction or otherwise - and although it'shas his own hypnotist?) Subjects given
possible to exhale silently, I've always preferredamphetamines saw a 13.5% improvement.
making a loud noise. I refer to this inarticulateSubjects who had a starter's pistol (firing blanks)
grunt as a "Barbaric Yawp" in deference to theshot unexpectedly while lifting had a 7.4%
great poet Walt Whitman who wrote: "I soundincrease in strength. And the subjects who
my barbaric YAWP over the roofs of the world."shouted during their exercise garnered a 12.2%
While I certainly lack the grace and insight of aincrease in strength.
poet, it turns out I'm onto something. Back inHypnosis:        +26.5%
1960 physiologists Michio Ikai and Arthur SteinhausAmphetimines:    +13.5%
published a study entitled Some Factors ModifyingGus shot:        + 7.4%
the Expression of Human Strength. They lookedYell:            +12.2%
at some external factors that could affect aFor most of us, having a personal hypnotist at
person's strength performance. Basically theythe gym with us, taking amphetamines or firing a
looked at a loud noise, the subject's outcryhandgun during our leg press is just not going to
(barbaric yawp), amphetamines, alcohol, adrenalinebe practical, to say the least. But the cheap and
and hypnosis.simple act of yelling your own barbaric yawp
They sat a subject in a chair and fastened a cableduring your 5 second static exertion might well
to his wrist with a wide strap. When the secondgarner a 12.2% increase in your performance.
hand of a clock reach a given point the subjectWow!
pulled against the cable in what amounted to aThe researchers suggested that this phenomenon
static contraction (isometric) biceps curl. Readingsmight be explained by acting to remove internal
were taken from a tension meter connected toinhibitions. Somehow the Vikings must have
the cable.known that when they ran ashore, bare-chested
The subjects given alcohol and adrenaline hadwielding battle axes and screaming their own, truly
improvements considered statistically insignificant.barbaric, yawp. But you can get the same benefit
The most profound effect was from hypnosiswithout the messy bloodshed.