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[{"key": "dc.contributor.advisor", "value": "Avela, Janne", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Linnamo, Vesa", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Sartela, Noora", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2017-12-11T08:02:17Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2017-12-11T08:02:17Z", "language": "", "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2017", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1805113", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/56224", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Kilpauinnissa, kuten muissakin urheilulajeissa suoritusten analysointi on t\u00e4rke\u00e4ss\u00e4 roolissa urheilijan kehityksess\u00e4. 1980 Olympialaisissa selk\u00e4uimarit alkoivat tehd\u00e4 pidempi\u00e4 vedenalaisia delfiinipotkuja ja huomattiin ett\u00e4 n\u00e4m\u00e4 uimarit olivat nopeampia. T\u00e4m\u00e4n tutkimuksen tarkoituksena oli selvitt\u00e4\u00e4 delfiinipotkuun vaikuttavia biomekaanisia tekij\u00f6it\u00e4 ja niiden eroja sel\u00e4ll\u00e4\u00e4n ja vatsallaan tehtyin\u00e4 startin ja ponnistuksen j\u00e4lkeen. \r\nYhdeks\u00e4n nuorta mieskilpauimaria osallistui tutkimukseen (ik\u00e4: 17,56 \u00b1 1,24 v, pituus: 182,11 \u00b1 6,75 cm, paino: 74,54 \u00b1 7,01 kg). Maksimaalisia delfiinipotkuja tehtiin 15 metri\u00e4 nelj\u00e4ll\u00e4 eri tyylill\u00e4: vapaauinninstartista (vust), vapaauinnin / vatsalleen ponnistuksesta (vudelf), selk\u00e4uinninstartista (sust) ja selk\u00e4uinnin / sel\u00e4lleen ponnistuksesta (sudelf). Suoritukset kuvattiin valmiilla kamera-asettelulla Impivaaran uimahallissa Turussa. Videokuva-analyysill\u00e4 m\u00e4\u00e4ritettiin delfiinipotkujen frekvenssi, amplitudi, suorituksen nopeus, yhdell\u00e4 potkulla edetty matka ja polvi- sek\u00e4 lonkkakulmat. \r\nStartilla tehtyjen mittausten potkufrekvenssi oli merkitsev\u00e4sti (p \u2264 0,006) suurempi (vust = 2,32 \u00b1 0,23, sust = 2,3 \u00b1 0,19), kuin ponnistuksesta (vudelf =2,08 \u00b1 0,28, sudelf = 2,09 \u00b1 0,15) tehtyjen. Vapaauinnin delfiinipotkujen amplitudit olivat suuremmat (vust = 37 \u00b1 3cm, vudelf = 41 \u00b1 3cm), kuin sel\u00e4ll\u00e4\u00e4n tehtyjen (sust = 32 \u00b1 5cm, sudelf = 37 \u00b1 3cm). Merkitsev\u00e4 ero (p = 0,002) amplitudeissa oli ponnistuksen j\u00e4lkeisiss\u00e4 suorituksissa (vudelf/sudelf). Nopeus oli suurimmillaan vapaauinninstartin j\u00e4lkeen (1,61 \u00b1 0,12 m/s, p \u2264 0,006). St-luku m\u00e4\u00e4ritt\u00e4\u00e4 potkun propulsiota ja tehoa, ja oli sust = 0,48 \u00b1 0,07; vust = 0,54 \u00b1 0,04; sudelf = 0,52 \u00b1 0,06; vudelf = 0,56 \u00b1 0,06. \r\nTulokset vastaavat osittain aikaisemmissa tutkimuksissa havaittuja tuloksia. Tuloksista huomattiin, ett\u00e4 frekvenssin ja nopeuden v\u00e4lill\u00e4 on korrelaatiota, kuten aikaisemmissa tutkimuksissa on todettu. Suurimmat uimarin etenemisnopeuteen vaikuttavat muuttujat ovat potkun frekvenssi ja amplitudi. Sel\u00e4ll\u00e4\u00e4n ja vatsallaan tehdyt potkut erosivat toisistaan mm. amplitudiltaan ja vartalonk\u00e4yt\u00f6lt\u00e4. Vatsallaan tehtyin\u00e4 potkujen amplitudi oli laajempi ja keskivartalon liike oli pienempi. \r\nUintivalmennuksessa tulisi huomioida delfiinipotkun frekvenssin ja amplitudin harjoittelu erillisin\u00e4 harjoitteinaan. Frekvenssin tiheys korreloi nopeuden kanssa, joten kilpailuissa frekvenssiin keskittyminen on t\u00e4rke\u00e4mp\u00e4\u00e4. Harjoittelussa tulisi kuitenkin pyrki\u00e4 laajentamaan potkun amplitudia ilman suuria muutoksia frekvenssiss\u00e4.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Noora Sartela (nomasart) on 2017-12-11 08:02:16.105913. Form: Pro gradu -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake). JyX data: [jyx_publishing-allowed (fi) =True]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija.group@korppi.jyu.fi) on 2017-12-11T08:02:17Z\r\nNo. of bitstreams: 2\r\nURN:NBN:fi:jyu-201712114597.pdf: 5531812 bytes, checksum: b91f1e26d4d7909c50bb0e06d833cbb8 (MD5)\r\nlicense.html: 4864 bytes, checksum: 72c34a10d396738a877a1dc70a62b402 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2017-12-11T08:02:17Z (GMT). No. of bitstreams: 2\r\nURN:NBN:fi:jyu-201712114597.pdf: 5531812 bytes, checksum: b91f1e26d4d7909c50bb0e06d833cbb8 (MD5)\r\nlicense.html: 4864 bytes, checksum: 72c34a10d396738a877a1dc70a62b402 (MD5)\r\n Previous issue date: 2017", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (48 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": "vapaauinti", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "selk\u00e4uinti", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "delfiinipotku", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Delfiinipotkun syklimuuttujien erot vapaauinnin ja selk\u00e4uinnin startin ja sein\u00e4st\u00e4 ponnistuksen j\u00e4lkeen", "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-201712114597", "language": null, "element": "identifier", "qualifier": "urn", "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", 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