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[{"key": "dc.contributor.advisor", "value": "Heikki Kainulainen", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Nikander, Aku", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2017-07-04T12:07:46Z", "language": "", "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2017-07-04T12:07:46Z", "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:1704613", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/54838", "language": "", "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Aku Nikander (2017). Hormonal and HRV responses to block training guided by heart rate variability. Liikuntatieteellinen tiedekunta, Jyv\u00e4skyl\u00e4n yliopisto, Liikuntafysiologian pro-gradu tutkielma, 67 s.\r\n\r\nHarjoittelun sek\u00e4 kuormituksen seuranta intensiivisten harjoitusjaksojen aikana on t\u00e4rke\u00e4\u00e4. Seuranta voidaan jakaa ulkoisiin ja sis\u00e4isiin metodeihin. Ulkoisilla metodeilla tarkoitetaan suorituskykytestej\u00e4 ja sis\u00e4isill\u00e4 metodeilla esimerkiksi sykev\u00e4livaihtelua ja seerumin hormonipitoisuutta. T\u00e4m\u00e4n tutkimuksen tarkoitus oli verrata korkea-intensiteettisen (HIT) blokkiharjoittelun sykev\u00e4livaihtelu- ja hormonivasteita ennaltam\u00e4\u00e4r\u00e4tyn (PD) ja sykeohjatun (HRVG) ryhm\u00e4n v\u00e4lill\u00e4. \r\nMetodit. Tutkimukseen osallistui 24 kest\u00e4vyysharjoitellutta miest\u00e4 (19-37-vuotiaita). 3-viikon kontrollijakson j\u00e4lkeen koehenkil\u00f6t jaettiin i\u00e4n, suorituskykytestien ja sykev\u00e4livaihtelun mukaan kahteen ryhm\u00e4\u00e4n (HRVG ja PD). HRVG-ryhm\u00e4 harjoitteli 3-p\u00e4iv\u00e4n juoksevan RMSSD keskiarvon mukaan. PD-ryhm\u00e4 harjoitteli ennaltam\u00e4\u00e4r\u00e4tyn ohjelman mukaan. Kest\u00e4vyyssuorituskyky, sykev\u00e4livaihtelu (HRV) ja seerumin hormonipitoisuudet mitattiin ennen, puolessa v\u00e4liss\u00e4 ja 8-viikon harjoitusjakson j\u00e4lkeen. \r\nTulokset. Kummatkin ryhm\u00e4t paransivat merkitsev\u00e4sti maksimaalista juoksunopeutta (Vmax) (p<0.001) suorassa mattotestiss\u00e4. Suhteellinen muutos oli kuitenkin merkitsev\u00e4sti suurempi HRVG- ryhm\u00e4ll\u00e4 (p<0.05) suurella vaikutusasteella (ES= 0.95). Y\u00f6llinen syke laski kummallakin ryhm\u00e4ll\u00e4 (p<0.01), mutta HRV muuttujat (RMSSD, LF ja TP) kasvoivat merkitsev\u00e4sti vain HRVG-ryhm\u00e4ll\u00e4 (p<0.05). Vmax ja absoluuttinen seerumin testosteronipitoisuus korreloivat merkitsev\u00e4sti. Lis\u00e4ksi, yksil\u00f6llinen Vmax muutos sek\u00e4 seerumin testosteronipitoisuus korreloivat merkitsev\u00e4sti mid-mittauksen ja post-mittauksen v\u00e4lill\u00e4. Yksil\u00f6llinen perustason HF korreloi merkitsev\u00e4sti Vmax muutoksen kanssa PD-ryhm\u00e4ss\u00e4. \r\nJohtop\u00e4\u00e4t\u00f6kset. HIT-blokkiperiodisaatio n\u00e4ytt\u00e4isi olevan tehokas keino parantaa kest\u00e4vyyssuorituskyky\u00e4 kest\u00e4vyysharjoitelleilla urheilijoilla. Perustuen harjoittelulla saavutettuihin parannuksiin kest\u00e4vyyssuorituskyvyss\u00e4 sek\u00e4 merkitseviin muutoksiin sykev\u00e4livaihtelussa ja seerumin testosteronipitoisuuksissa HRVG-ryhm\u00e4ss\u00e4, yksil\u00f6lliseti sykeohjattu harjoittelu saattaa olla optimaalisempi tapa adaptoitua harjoitteluun verrattuna ennaltam\u00e4\u00e4r\u00e4ttyyn ohjelmointiin.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Aku Nikander (2017). Hormonal and HRV responses to block training guided by heart rate variability. Faculty of Sport and Health Sciences, University of Jyv\u00e4skyl\u00e4, Master\u00b4s Thesis in Exercise Physiology. 67 pp.\r\n\r\nDuring intensive training periods, the role of monitoring performance and fatigue becomes important. Monitoring can be divided to external and internal methods. External methods include performance tests and internal methods includes markers such as heart rate variability (HRV) and serum hormone concentrations. The aim of this study was to compare hormonal and HRV responses between predetermined (PD) and heart rate variability guided (HRVG) block periodization of high-intensity aerobic training (HIT). \r\nMethods. After 3-weeks control period, subjects (24) were matched for age, endurance performance and HRV into two training groups (HRVG and PD) for the 8-week long training period. The HRVG group trained according to a 3-day rolling average morning RMSSD, whereas PD trained based on a predetermined training program. Endurance performance, heart rate variability (HRV) and serum hormone concentrations were measured before, in the middle and after 8-weeks training period in 24 (19 - 37 years old) endurance trained males \r\nResults. Both groups improved significantly maximal velocity (Vmax) (p<0.001) on the incremental treadmill test. The relative change in Vmax was significantly greater in HRVG (p< 0.05) with large effect size (ES=0.95). Nocturnal heart rate decreased in both groups (p<0.01), but HRV (RMSSD, LF and TP) increased significantly only in HRVG (p<0.05). Significant correlations were found between individual Vmax changes and absolute serum testosterone level as well as indivudal Vmax changes and changes in serum testosterone concentrations from mid to post. Individual baseline level of HF correlated significantly with Vmax changes in PD. \r\nConclusions. Block periodization of HIT seems to be an effective way to improve endurance and running performance in already trained males. Based on training induced increases in endurance performance combined with significant changes in HRV and serum testosterone observed in HRVG, individually HRV guided training may be more optimal compared to predetermined training.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Aku Nikander (jaakosni) on 2017-07-04 12:07:46.304947. Form: Pro gradu -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake). JyX data: [jyx_publishing-allowed (fi) =False]", "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 2017-07-04T12:07:46Z\r\nNo. of bitstreams: 2\r\nURN:NBN:fi:jyu-201707043227.pdf: 1548886 bytes, checksum: 5a68336f8f0e5b73856029ed56e8ca3f (MD5)\r\nlicense.html: 1144 bytes, checksum: 05fcce97328a081a9f7cd962e9b3aa4f (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2017-07-04T12:07:46Z (GMT). No. of bitstreams: 2\r\nURN:NBN:fi:jyu-201707043227.pdf: 1548886 bytes, checksum: 5a68336f8f0e5b73856029ed56e8ca3f (MD5)\r\nlicense.html: 1144 bytes, checksum: 05fcce97328a081a9f7cd962e9b3aa4f (MD5)\r\n Previous issue date: 2017", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (73 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": "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": "sykev\u00e4livaihtelu", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": 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responses to block training guided by heart rate variability", "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-201707043227", "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", "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", 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Aineisto on luettavissa Jyv\u00e4skyl\u00e4n yliopiston kirjaston arkistoty\u00f6asemalta. Ks. https://kirjasto.jyu.fi/fi/tyoskentelytilat/laitteet-ja-tilat.", "language": "fi", "element": "rights", "qualifier": "accessrights", "schema": "dc"}, {"key": "dc.rights.accessrights", "value": "This material has a restricted access due to copyright reasons. It can be read at the workstation at Jyv\u00e4skyl\u00e4 University Library reserved for the use of archival materials: https://kirjasto.jyu.fi/en/workspaces/facilities.", "language": "en", "element": "rights", "qualifier": "accessrights", "schema": "dc"}, {"key": "dc.type.okm", "value": "G2", "language": null, "element": "type", "qualifier": "okm", "schema": "dc"}]
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