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[{"key": "dc.contributor.author", "value": "Mikkonen, Pauli", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2010-11-01T13:08:19Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2010-11-01T13:08:19Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2006", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1032132", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/25525", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Tutkielman tavoitteena oli selvitt\u00e4\u00e4 kiihtyvyysanturien soveltuvuutta m\u00e4kihypyn ponnistusnopeudenmittaamiseen. Kiihtyvyysantureilla voitaisiin mahdollisesti v\u00e4hent\u00e4\u00e4mittauksiin ja analysointiin kuluvaa aikaa ja taloudellisia resursseja verrattuna aiemmink\u00e4ytettyihin menetelmiin. Ensimm\u00e4isess\u00e4 vaiheessa mitattiin yhden koehenkil\u00f6n kelkkaergometrissasuoritettujen hyppyjen (14 kpl) ponnistusnopeudet kiihtyvyysanturiltaja vertailunopeudet ponnistuset\u00e4isyyden ja voimasignaalin avulla. Anturilta laskettiinlineaarisen kiihtyvyyden kuvaaja liikesuuntaan ja integroitiin se l\u00e4ht\u00f6nopeuden selvitt\u00e4miseksi.Toisessa vaiheessa nuoren maajoukkuetason hypp\u00e4\u00e4j\u00e4n suorituksia tallennettiin3 kappaletta Vuokatin K-90 hyppyrim\u00e4ess\u00e4. Lonkkapiste kuvattiin sagittaalitasossadigitaalisella videokameralla (50 Hz) vertailunopeuden laskemiseksi sek\u00e4lonkka-olkap\u00e4\u00e4 -segmentti anturin kallistuskulman selvitt\u00e4miseksi vartalon kallistuksenavulla. Kummassakin testiss\u00e4 koehenkil\u00f6n alaselk\u00e4\u00e4n kiinnitettiin VTT:lt\u00e4 lainassaollut mittalaite, jossa oli kapasitiiviset yksiakseliset kiihtyvyys- ja kallistusanturi. Ker\u00e4ystaajuusoli 500 Hz ja signaaleja ei suodatettu. Kelkkaergometrissa kiihtyvyysmittalaiteantoi hieman alhaisemmat nopeudet, mutta eri menetelmill\u00e4 saadut nopeudetkorreloivat hyvin (r = 0,934), eik\u00e4 tilastollisesti merkitsev\u00e4\u00e4 eroa nopeuksien v\u00e4lillesyntynyt. M\u00e4kihypyiss\u00e4 k\u00e4ytetty menetelm\u00e4 ei soveltunut sellaisenaan ponnistusnopeudenmittaamiseen. Anturilla ei pystytty mittaamaan kallistusta ja kiihtyvyyden suuntaadynaamisessa m\u00e4kihyppytilanteessa, joita lineaarisen kiihtyvyyden muodostamiseksitarvitaan, eik\u00e4 my\u00f6sk\u00e4\u00e4n videoanalyysill\u00e4 saatu riitt\u00e4v\u00e4n tarkkoja tietoja n\u00e4ist\u00e4 muuttujista.Ponnistussuunnan mittaamiseksi sagittaalitasossa tarvitaan kaksi kohtisuoraantoisiinsa n\u00e4hden sijaitsevaa mittausakselia. Tarvitaan lis\u00e4ksi v\u00e4hint\u00e4\u00e4n yksi erillinenkiihtyvyysanturi tai gyroskooppi selvitt\u00e4m\u00e4\u00e4n anturin kallistuskulmaa tarkempien lineaaristenkiihtyvyyksien laskemiseksi. T\u00e4m\u00e4n lis\u00e4ksi kiinnitysmenetelm\u00e4\u00e4n t\u00e4ytyy tehd\u00e4parannuksia.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Joonas Kesaniemi (jkesa@jyu.fi) on 2010-11-01T13:08:19Z\nNo. of bitstreams: 1\nmikkonen pauli 2006.pdf: 630784 bytes, checksum: eff2bddccafa134364cdbb761160166e (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2010-11-01T13:08:19Z (GMT). No. of bitstreams: 1\nmikkonen pauli 2006.pdf: 630784 bytes, checksum: eff2bddccafa134364cdbb761160166e (MD5)\n Previous issue date: 2006", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "68 sivua", "language": null, "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "ponnistaminen", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kiihtyvyysanturit", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kelkkaergometrit", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kiihtyvyyssignaali", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Kiihtyvyysanturien k\u00e4ytt\u00f6 m\u00e4kihypyn ponnistusnopeuden m\u00e4\u00e4rityksess\u00e4", "language": null, "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201011013028", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.dcmitype", "value": "Text", "language": "en", "element": "type", "qualifier": "dcmitype", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Liikuntatieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sport and Health Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Liikuntabiologian laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Biology of Physical Activity", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Biomekaniikka", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Biomechanics", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": "fi", "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.oppiainekoodi", "value": "5012", "language": null, "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "m\u00e4kihyppy", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "nopeus", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "biomekaniikka", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.format.content", "value": "fulltext", "language": null, "element": "format", "qualifier": "content", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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