The use of Ki to "psych-up" and increase strength

dc.contributor.advisor Amy Welch
dc.contributor.author Tschampl, Mark
dc.contributor.department Kinesiology
dc.date 2018-08-11T13:57:24.000
dc.date.accessioned 2020-06-30T02:29:28Z
dc.date.available 2020-06-30T02:29:28Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2009
dc.date.embargo 2013-06-05
dc.date.issued 2009-01-01
dc.description.abstract <p>In many modern sports where an explosion of power/strength is necessary, such as weight lifting, shot put, and tennis, athletes often yell or grunt to "psych-up" and improve performance. Martial artists have been using a similar technique for centuries called a "kiap". Unfortunately, there is little scientific evidence that yelling or kiaping improves performance. Therefore, this study examined the effect of kiaping on strength during a handgrip exercise in novices and experts. Fifty participants (25 novice and 25 expert martial artists) completed a handgrip strength test under three conditions, a baseline test, a no kiap control condition, and a kiap condition. Strength increased by a mean of 8% (p < 0.001) for the combined expertise levels in the kiap condition compared to the baseline and no kiap conditions. There was also a significant interaction (p < 0.05) between expertise level and condition, with a medium effect size of 0.48 for novices and a small effect size of 0.25 for experts. The results of this study indicate that the kiap may increase hand grip strength in participants with as little as two months of training, benefiting novices slightly more than experts, and additional training may not result in further increases in strength.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/10577/
dc.identifier.articleid 1664
dc.identifier.contextkey 2806833
dc.identifier.doi https://doi.org/10.31274/etd-180810-2522
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/10577
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/24783
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/10577/Tschampl_iastate_0097M_10415.pdf|||Fri Jan 14 18:23:41 UTC 2022
dc.subject.disciplines Kinesiology
dc.subject.keywords grunt
dc.subject.keywords ki
dc.subject.keywords martial arts
dc.subject.keywords performance
dc.subject.keywords psyching-up
dc.subject.keywords strength
dc.title The use of Ki to "psych-up" and increase strength
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
relation.isOrgUnitOfPublication f7b0f2ca-8e43-4084-8a10-75f62e5199dd
thesis.degree.level thesis
thesis.degree.name Master of Science
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