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[{"key": "dc.contributor.advisor", "value": "Lepp\u00e4nen, Mari", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Tarkka, Ina", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Vornanen, Teemu", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2019-05-22T08:00:20Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2019-05-22T08:00:20Z", "language": "", "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2019", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/64097", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Useita pallopelej\u00e4 luonnehtivat erilaiset nopeat suunnanmuutokset sek\u00e4 \u00e4killiset kiihdytykset, mitk\u00e4 altistavat etenkin nuoria urheilijoita akuuteille alaraajavammoille. Aiempien tutkimusten valossa on esitetty, ett\u00e4 jalkater\u00e4n laskeutumistekniikka saattaisi olla yhteydess\u00e4 vammariskiin sek\u00e4 erityyppisiin juoksuvammoihin. Hyvin v\u00e4h\u00e4n tiedet\u00e4\u00e4n kuitenkin jalkater\u00e4n laskeutumistekniikan yhteyksist\u00e4 alaraajojen kinematiikkaan erityisesti nopeiden suunnanmuutosten aikana. T\u00e4m\u00e4n tutkimuksen tarkoituksena oli selvitt\u00e4\u00e4, onko nopeiden suunnanmuutosten yhteydess\u00e4 esiintyv\u00e4ll\u00e4 jalkater\u00e4n laskeutumistekniikalla yhteys nuorten palloilijoiden akuutteihin, ilman suoraa kontaktia, tapahtuneisiin nilkan- ja polven nivelsidevammoihin.\r\n\r\nTutkimus on osa laajempaa, Tampereen urheilul\u00e4\u00e4k\u00e4riaseman ja UKK-instituutin yhdess\u00e4 toteuttamaa, prospektiivista PROFITS-tutkimusta (Polvi- ja nilkkavammoja ennustavat tekij\u00e4t sek\u00e4 vammojen ehk\u00e4isy nuorilla urheilijoilla), mik\u00e4 on toteutettu Tampereella vuosina 2011\u20132015. Yhteens\u00e4 183 koripalloilijaa ja 172 salibandyn pelaajaa (12-21v.) osallistuivat 3D-liikelaboratoriossa toteutettuihin kahteen erilaiseen suunnanmuutostestiin (90\u00b0 & 180\u00b0 testit). Seuraavat kinemaattiset muuttujat analysoitiin pelaajien suorituksista alustakontaktihetkell\u00e4: (1) nilkan dorsi-/plantaarifleksio, (2) nilkan inversio/eversio, (3) nilkan sis\u00e4-/ulkorotaatio, sek\u00e4 (4) jalkater\u00e4n askelluskulma alustaan n\u00e4hden. Kaikki yhden vuoden seurantajakson aikana ilmaantuneet polven ja nilkan nivelsidevammat sek\u00e4 pelaajien ottelu- ja harjoitustunnit kirjattiin. Coxin regressioanalyysin avulla laskettiin riskitiheyssuhteet sek\u00e4 95%:n luottamusv\u00e4lit. \r\n\r\nSeurannan aikana rekister\u00f6itiin yhteens\u00e4 38 nilkan nivelsidevammaa (0,24 vammaa/1000 peli- ja harjoitustuntia) sek\u00e4 16 polvivammaa (0,10 vammaa/1000 peli- ja harjoitustuntia). Tulokset osoittavat, ett\u00e4 transversaalitasossa tapahtuva jalkater\u00e4n sis\u00e4kierto oli tutkituista muuttujista ainoana tilastollisesti merkitsev\u00e4sti yhteydess\u00e4 seurantajakson aikana ilmaantuneeseen nilkkavammaan. T\u00e4m\u00e4 yhteys havaittiin molemmissa suunnanmuutostesteiss\u00e4. 90\u00b0 testiss\u00e4 jokainen 5\u00b0 lis\u00e4ys jalkater\u00e4n sis\u00e4kiertoon kasvatti uuden nilkkavamman riskin 1,16 kertaiseksi (p=0,045; 95% CI, 1,00-1,35), kun taas 180\u00b0 testiss\u00e4 jokainen 5\u00b0 lis\u00e4ys oli yhteydess\u00e4 1,14 kertaiseen riskiin saada uusi nilkkavamma (p=0,01; 95% CI, 1,03-1,26). Tilastollisesti merkitsev\u00e4\u00e4 yhteytt\u00e4 vammoihin ei havaittu muiden tutkittujen muuttujien osalta. ROC-k\u00e4yr\u00e4n avulla tehty analyysi viittasi jalkater\u00e4n sis\u00e4kierron ja vammojen ilmaantuvuuden v\u00e4liseen eritt\u00e4in heikkoon ennustettavuuteen (yhdistetty sensitiivisyys ja spesifisyys).\r\n\r\nT\u00e4m\u00e4n tutkimuksen tulokset antavat viitteit\u00e4 jalkater\u00e4n sis\u00e4kierron mahdollisesta yhteydest\u00e4 nilkkavammariskiin, joskin mit\u00e4\u00e4n erityisen selv\u00e4\u00e4 laskeutumistekniikkaa ei voida tulosten perusteella yhdist\u00e4\u00e4 alaraajavammojen ilmaantuvuuteen. Kantap\u00e4\u00e4 edell\u00e4 tapahtuva askellus, mink\u00e4 on esitetty olevan vammoille alttiimpi tekniikka verrattuna p\u00e4ki\u00e4askellukseen, ei t\u00e4ss\u00e4 tutkimuksessa ollut mill\u00e4\u00e4n tavalla yhteydess\u00e4 alaraajavammojen ilmaantuvuuteen. Lis\u00e4ksi jalkater\u00e4n sis\u00e4kierron ei havaittu olevan yhteydess\u00e4 polvivammojen ilmaantuvuuteen, toisin kuin aiemmissa tutkimuksissa on ehdotettu. Tulosten perusteella voidaan todeta, ett\u00e4 pelaajien tulisi suunnanmuutosten yhteydess\u00e4, vammoja ehk\u00e4ist\u00e4kseen, pyrki\u00e4 v\u00e4ltt\u00e4m\u00e4\u00e4n liiallista jalkater\u00e4n sis\u00e4kiertoa alustakontaktihetkell\u00e4. Jatkossa toteutettavien tutkimusten tavoitteena tulisi olla vahvistaa t\u00e4ss\u00e4 tutkimuksessa esitetyt tulokset suurempien otoskokojen avulla sek\u00e4 hy\u00f6dynt\u00e4en erilaisia suunnanmuutostestej\u00e4 eri lajien urheilijoilla.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Many pivoting sports that requires rapid turns and accelerations to various directions may entail a high risk for acute lower extremity injuries, particularly, for adolescents. The previous findings have indicated that the foot strike technique may be related with injurious lower extremity biomechanics, as well as to a specific lower limb running injuries. Yet, there are not too many research papers investigating the foot landing pattern associated with lower extremity kinematics during athletic tasks. Therefore, the purpose of this study was to investigate the association of the foot landing pattern during cutting maneuvers to the incidence of acute noncontact knee and ankle ligament injuries among young team sport athletes.\r\n\r\nThe current study was carried out at the Tampere Research Center of Sports Medicine and the UKK Institute for Health Promotion Research, Tampere, Finland. This study is part of the large prospective PROFITS-study (Predictors of Lower Extremity Injuries in Team Sports) conducted in Finland between 2011 and 2015. A total of 183 basketball and 172 floorball players (age range, 12-21 years) participated in two cutting technique procedures (90\u00b0 and 180\u00b0 tests) conducted in the 3D motion analysis laboratory. The following kinematic variables were analyzed: (1) ankle dorsi-/plantarflexion at initial contact (IC), (2) ankle inversion/eversion at IC, (3) ankle internal/external rotation at IC, and (4) foot strike angle at IC. All knee and ankle ligament injuries, as well as match and training exposure, were then recorded for the following 1-year. Cox Regression models were used to calculate hazard ratios (HRs) and 95% CIs.\r\n\r\nDuring the follow-up a total of 38 noncontact ankle ligament injuries (0.24 injuries/1000 player-hours) and 16 noncontact knee injuries (0.10 injuries/1000 player-hours) were registered. Of the variables investigated, only the transverse plane foot internal rotation, in both cut tasks, were significantly associated with a new ankle injury. During the 90\u00b0 cut, each 5\u00b0 increase in foot internal rotation was associated with a 1.16 times higher risk for ankle injury (p=0.045, 95% CI, 1.00-1.35), whereas during the 180\u00b0 cut each 5\u00b0 increase in foot internal rotation was associated with a 1.14 times higher risk for ankle injury (p=0.01, 95% CI, 1.03-1.26). No significant association was observed in any other kinematic variable investigated. ROC curve analysis for foot internal rotation at IC showed an area under the curve of 0.6, indicating a poor combined sensitivity and specificity of the test.\r\n\r\nThe findings of this study demonstrated that, while there was some relation of foot internal rotation at IC on ankle injuries, no clear landing pattern could be described as strongly associated with lower extremity injuries. The heel strike pattern, particularly, which have been suggested to be harmful landing technique compared to forefoot striking during cutting tasks, wasn\u2019t found to be related to lower limb injuries. Furthermore, internal rotation of the foot wasn\u2019t associated to knee injuries as has been previously hypothesized. Based on these results, avoiding excessive internal rotation of the foot when cutting may reduce the risk for ankle injuries. The future studies should confirm these findings with the utilization of various cutting procedures, larger sample sizes and athletes representing different sports.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2019-05-22T08:00:20Z\r\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2019-05-22T08:00:20Z (GMT). No. of bitstreams: 0\r\n Previous issue date: 2019", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "95", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "eng", "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": "ACL", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "ankle sprain", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "cutting", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Watch your step! Is foot landing technique during cutting manoeuvres associated with acute lower extremity injuries? : a 12-month prospective cohort study of young team sport athletes", "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-201905222701", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "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": "Liikuntal\u00e4\u00e4ketiede", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Sport Medicine", "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": "5042", "language": "", "element": "subject", "qualifier": "oppiainekoodi", "schema": "dc"}, {"key": "dc.subject.yso", "value": "riskitekij\u00e4t", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "urheiluvammat", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "nilkat", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "joukkueurheilu", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "urheilijat", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "liikuntal\u00e4\u00e4ketiede", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "polvet", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "risk factors", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "sports injuries", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "ankles", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "team sports", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "athletes", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "sports medicine", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "knees", "language": "", "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.rights.accessrights", "value": "", "language": null, "element": "rights", "qualifier": "accessrights", "schema": "dc"}]
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