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[{"key": "dc.contributor.advisor", "value": "Piirainen, Jarmo", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Alatalo, Sanna", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2020-12-02T09:54:09Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2020-12-02T09:54:09Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2020", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/72916", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Tilastokeskuksen ennusteen mukaan yli 65-vuotiaiden osuus Suomen v\u00e4est\u00f6st\u00e4 l\u00e4hes kaksinkertaistuu vuosien 2010\nja 2050 v\u00e4lill\u00e4 (17% -> 30 %). Ik\u00e4\u00e4ntyminen aiheuttaa rakenteellisia ja hermostollisia muutoksia jotka heikent\u00e4v\u00e4t\ntoimintakyky\u00e4. Vakavat kaatumiset lis\u00e4\u00e4v\u00e4t ennenaikaisen kuoleman riski\u00e4 ja heikent\u00e4v\u00e4t el\u00e4m\u00e4nlaatua. Tilanteissa,\njossa tasapaino yll\u00e4tt\u00e4en menetet\u00e4\u00e4n, nopea voimantuotto on t\u00e4rke\u00e4\u00e4. Ik\u00e4\u00e4ntymisen my\u00f6t\u00e4 nopea voimantuotto\nkuitenkin heikkenee. Plyometrisen harjoittelun on todettu hidastavan lihasmassan ja voiman v\u00e4henemist\u00e4, sek\u00e4\nparantavan mahdollisesti tasapainon hallintaa ik\u00e4\u00e4ntyneill\u00e4.\nT\u00e4ss\u00e4 tutkimuksessa tarkasteltiin miten nelj\u00e4n viikon plyometrinen harjoittelu vaikuttaa nuorten ja ik\u00e4\u00e4ntyneiden\nnaisten hermolihasj\u00e4rjestelm\u00e4n toimintaan ja tasapainoon. Tutkimuksessa tehtiin alku- ja loppumittaukset, sek\u00e4\nseurantamittaukset seitsem\u00e4n viikkoa harjoittelun j\u00e4lkeen. Tutkittavina oli vapaaehtoisia nuoria (n = 9, 18-30 v) ja\nik\u00e4\u00e4ntyneit\u00e4 (n = 10, 60-70) naisia. Mittausp\u00e4ivin\u00e4 tutkittavilta mitattiin tasapainon horjutuksen aiheuttamat siirtym\u00e4t,\npolven- ja nilkan ojennuksen isometriset maksimivoimat, patellan refleksivaste, staattisen kyykkyhypyn aikainen\nlihasaktiivisuus soleus-, gastrocnemius medialis-, tibialis anterior-, vastus lateralis- ja biceps femoris-lihaksista, sek\u00e4\nkyykkyhypyn korkeus.\nPlyometrinen harjoittelu paransi hyppykorkeutta tilastollisesti merkitsev\u00e4sti kummassakin tutkimusryhm\u00e4ss\u00e4\n(F=6.234 ja p=0.006). Harjoittelu ei vaikuttanut posterior-suuntaisessa tasapainoh\u00e4iri\u00f6ss\u00e4 h\u00e4iri\u00f6n aikaisiin siirtymiin\ntilastollisesti merkitsev\u00e4sti (F=3.071 ja p=0.065), mutta tulosta voidaan kuitenkin pit\u00e4\u00e4 suuntaa antavana. Lis\u00e4ksi\nnilkan ojentajien isometrinen maksimivoima laski loppu- ja seurantamittausten v\u00e4lill\u00e4 tilastollisesti merkitsev\u00e4sti\n(p=0.007). Muissa mitatuissa muuttujissa ei harjoittelulla ollut tilastollisesti merkitsev\u00e4\u00e4 vaikutusta. Plyometrinen\nharjoittelu n\u00e4ytti vaikuttavan samalla tavalla sek\u00e4 nuorten ett\u00e4 ik\u00e4\u00e4ntyneiden ryhm\u00e4ss\u00e4.\nPlyometrinen harjoittelu n\u00e4ytt\u00e4isi sopivan my\u00f6s ik\u00e4\u00e4ntyneille. T\u00e4ss\u00e4 tutkimuksessa hyppykorkeus kasvoi ja tasapainon\nkehityksess\u00e4 n\u00e4htiin positiivinen trendi. Lis\u00e4tutkimuksia kuitenkin tarvitaan jotta ymm\u00e4rret\u00e4\u00e4n paremmin kuinka\nkauan, mill\u00e4 intensiteetill\u00e4 ja millaisilla plyometrisilla harjoitteilla tulee harjoitella jotta saadaan paras mahdollinen\nharjoitusvaste ja sit\u00e4 kautta v\u00e4hennetty\u00e4 tasapainon menett\u00e4misest\u00e4 johtuvia kaatumisia. Vaikka suunta oli useiden\nmuuttujien osalta positiivinen, n\u00e4ytt\u00e4\u00e4 silt\u00e4, ett\u00e4 t\u00e4ss\u00e4 tutkimuksessa k\u00e4ytetty nelj\u00e4n viikon tutkimusjakso oli liian lyhyt\nja harjoitteluintensiteetti liian alhainen todella merkitsevien muutosten aikaansaamiseksi.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "According to prediction by Statistics Finland the portion of over 65-year olds in the Finnish population will almost\ndouble between 2010 and 2050 (17%->30%). Aging causes structural and neural changes that impair performance.\nSerious falls increase the risk of premature death and weakens the quality of life. In situations where balance is\nsuddenly lost the fast force production is important. However, with age the fast force production declines. Plyometric\nexercise has been found to slow down the decrease of muscle mass and strength and also to possibly improve the\nbalance on the elderly\nThe aim of this study was to examine how four weeks of plyometric exercise affects the balance and functionality of\nneuromuscular system of young and elderly women. The study consisted of three measurements: initial (just before\ntraining period), final (just after four weeks plyometric training) and follow-up (after seven weeks of detraining). The\ntest group consisted of voluntary young (n = 9, 18-30) and elderly (n = 10, 60-70) women. Measurements were made\nfor displacements of the center-of-pressure caused by pertubations of balance, maximal isometric forces of knee\nextension and plantar flexion, EMG amplitude of patellar reflex, EMG activity of five lower limb muscles (soleus-,\ngastrocnemius medialis-, tibialis anterior-, vastus lateralis- and biceps femoris) during static squat jump and the height\nof the squat jump.\nPlyometric exercise improved statistically significantly the height of the squat jump in both research groups (F=6.234\nja p=0.006). Plyometric exercise did not have statistically significant effect on balance control during posterior\npertubations (F=3.071 ja p=0.065), but the trend was positive. The isometric maximum force of plantar flexors\ndecreased statistically significantly between final and follow-up measurements (p= 0.007). In other measured variables\nno statistically significant effect was found. Plyometric exercise seemed to affect similarly in both the young and\nelderly groups.\nPlyometric training seems to suit also for the elderly. In this study the improvement in the squat jump height was seen,\nas well as the positive trend in balance control. Still, more research is needed to better understand the duration, intensity\nand type of plyometric exercises to be used in order to get the best possible training response and thereby reduce falls\ncaused by loss of balance. Although positive trend was seen in several variables, it is likely that four weeks training\nperiod used in this study was too short and the training intensity too low to achieve truly significant changes.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2020-12-02T09:54:09Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2020-12-02T09:54:09Z (GMT). No. of bitstreams: 0\n Previous issue date: 2020", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "72", "language": "", "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": "plyometrinen harjoittelu", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "hermolihasj\u00e4rjestelm\u00e4", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Plyometrisen harjoittelun vaikutukset tasapainoon ja hermolihasj\u00e4rjestelm\u00e4n toimintaan nuorilla ja ik\u00e4\u00e4ntyneill\u00e4 naisilla", "language": "", "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-202012026877", "language": "", "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", "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": "Liikunta- ja terveystieteet", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Sport and Health Sciences", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Valmennus- ja testausoppi", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Science in Sport Coaching and Fitness Testing", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "yvv.contractresearch.funding", "value": "0", "language": "", "element": "contractresearch", "qualifier": "funding", "schema": "yvv"}, {"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": null, "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": "5013", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ik\u00e4\u00e4ntyneet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ik\u00e4\u00e4ntyminen", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "tasapaino", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "naiset", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "nuoret", "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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