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[{"key": "dc.contributor.author", "value": "Raimoaho, Reeta", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2014-07-25T06:47:50Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2014-07-25T06:47:50Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2014", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1439026", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/43911", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Reeta Raimoaho (2014). Kehon koostumuksen, vatsanseudun rasvakudoksen ja fyysisen ak-tiivisuuden v\u00e4linen yhteys eri mittareilla mitattuna. Terveystieteiden laitos, Jyv\u00e4skyl\u00e4n yli-opisto, liikuntal\u00e4\u00e4ketieteen pro gradu -tutkielma, 60 s., 9 liitett\u00e4.\n\nViskeraalinen rasvakudos on yhteydess\u00e4 monien eri sairauksien lis\u00e4\u00e4ntyneeseen riskiin. S\u00e4\u00e4n-n\u00f6llinen fyysinen aktiivisuus n\u00e4ytt\u00e4isi ehk\u00e4isev\u00e4n koko kehon ja viskeraalisen rasvakudoksen ker\u00e4\u00e4ntymist\u00e4 l\u00e4pi aikuisi\u00e4n. Viskeraalista rasvakudosta voidaan mitata tarkasti MRI:ll\u00e4, mutta se on hidas ja kallis menetelm\u00e4. T\u00e4m\u00e4n pro gradu -tutkielman tarkoituksena oli selvitt\u00e4\u00e4, miten yksinkertaisemmilla mittareilla (DXA, bioimpedanssi ja vy\u00f6t\u00e4r\u00f6nymp\u00e4rysmitta) mitatut vatsanseudun rasvam\u00e4\u00e4r\u00e4t korreloivat MRI:ll\u00e4 mitattuun viskeraalisen rasvakudoksen pinta-alaan. Lis\u00e4ksi selvitettiin, miten edell\u00e4 mainituilla mittareilla mitatut rasvam\u00e4\u00e4r\u00e4t korreloivat fyysisen aktiivisuuden m\u00e4\u00e4r\u00e4\u00e4n normaalipainoisilla miehill\u00e4.\n\nTutkimusaineisto oli per\u00e4isin FITFATTWIN tutkimuksesta, joka koostuu 23 nuoresta mono-tsygoottisesta mieskaksosparista. Tutkimukseen osallistujia tarkasteltiin kuitenkin t\u00e4ss\u00e4 tut-kielmassa yksil\u00f6in\u00e4 (n=46) eik\u00e4 kaksospareina. Vatsanseudun rasvan m\u00e4\u00e4r\u00e4\u00e4 mitattiin vy\u00f6t\u00e4-r\u00f6nymp\u00e4rysmitalla, bioimpedanssilla DXA:lla ja MRI:ll\u00e4. Viimeisen kolmen vuoden fyysisen aktiivisuuden m\u00e4\u00e4r\u00e4\u00e4 selvitettiin retrospektiivisell\u00e4 haastattelulla. Mittareiden v\u00e4lisi\u00e4 sek\u00e4 fyysisen aktiivisuuden ja mittareiden v\u00e4lisi\u00e4 yhteyksi\u00e4 tarkasteltiin Pearsonin korrelaatioker-toimella ja lineaarisella regressioanalyysill\u00e4. Korrelaatioden v\u00e4lisien erojen tilastollisia mer-kitsevyyksi\u00e4 testattiin Fisherin z-muunnoksella. Tutkittavat jaettiin fyysisen aktiivisuuden perusteella viel\u00e4 inaktiivisiin ja aktiivisiin henkil\u00f6ihin (raja-arvona oli 3.7 METh/vrk). Fyysisen aktiivisuuden ja mittareiden v\u00e4lisi\u00e4 yhteyksi\u00e4 tarkasteltiin eri ryhmiss\u00e4 Spearmanin korre-laatiokertoimella sek\u00e4 ryhmien v\u00e4lisi\u00e4 eroja Mann Whitney tarkalla testill\u00e4 ja Studentin riip-pumattomien otosten t-testill\u00e4.\n\nMRI:ll\u00e4 mitatun viskeraalisen rasvakudoksen pinta-alan ja muiden eri mittareilla mitattujen rasvam\u00e4\u00e4rien v\u00e4linen korrelaatio oli, r=.749\u2013.901 (p<.001). Voimakkaimpien ja heikoimpien korrelaatioiden v\u00e4lill\u00e4 oli tilastollisesti merkitsev\u00e4 ero (p<.05). Fyysisen aktiivisuuden m\u00e4\u00e4r\u00e4n (keskiarvo 4.7 METh/vrk) ja eri mittareilla mitattujen rasvam\u00e4\u00e4rien v\u00e4linen korrelaatio oli, r = -.495 \u2013 -.601 (p<.001). Korrelaatioiden v\u00e4lill\u00e4 ei ollut tilastollisesti merkitsevi\u00e4 eroja. Aktii-visten ryhm\u00e4ss\u00e4 vy\u00f6t\u00e4r\u00f6nymp\u00e4rysmittaa (r = -.418, p=NS) lukuun ottamatta fyysisen aktiivi-suuden m\u00e4\u00e4r\u00e4n ja eri mittareilla mitattujen rasvam\u00e4\u00e4rien v\u00e4linen korrelaatio oli, r= -.472 \u2013 -.670 (p<.05). Inaktiivisten ryhm\u00e4ss\u00e4 korrelaatiot eiv\u00e4t olleet tilastollisesti merkitsevi\u00e4. Ryhmien v\u00e4lill\u00e4 havaittiin my\u00f6s tilastollisesti merkitsev\u00e4 ero (p=.001\u2013.048) eri mittareilla mitatuissa rasvam\u00e4\u00e4riss\u00e4, mutta ei BMI:ss\u00e4.\n\nDXA:lla, bioimpedanssilla ja vy\u00f6t\u00e4r\u00f6nymp\u00e4rysmitan avulla m\u00e4\u00e4riteltyj\u00e4 vatsanseudun rasva-m\u00e4\u00e4ri\u00e4 voidaan k\u00e4ytt\u00e4\u00e4 antamaan viitteit\u00e4 viskeraalisen rasvakudoksen ker\u00e4\u00e4ntymisest\u00e4 nor-maalipainoisilla miehill\u00e4. Mittareilla ei kuitenkaan voida erottaa eri vatsanseudun rasvaku-doskerroksia toisistaan. Fyysisesti aktiivinen el\u00e4m\u00e4ntapa n\u00e4ytt\u00e4isi v\u00e4hent\u00e4v\u00e4n kehon varasto-rasvoja ja viskeraalisen rasvakudoksen m\u00e4\u00e4r\u00e4\u00e4 normaalipainoisilla miehill\u00e4. MRI, DXA, bioimpedanssi ja vy\u00f6t\u00e4r\u00f6nymp\u00e4rysmitta vaikuttaisivat hyvilt\u00e4 mittareita mittaamaan n\u00e4it\u00e4 aiheutuneita muutoksia. Kuitenkin BMI ja hyvin aktiivisilla henkil\u00f6ill\u00e4 vy\u00f6t\u00e4r\u00f6nymp\u00e4rysmitta eiv\u00e4t v\u00e4ltt\u00e4m\u00e4tt\u00e4 tuo niit\u00e4 esille.\n\nAvainsanat: viskeraalinen rasvakudos, MRI, DXA, bioimpedanssi, vy\u00f6t\u00e4r\u00f6nymp\u00e4rysmitta, fyysinen aktiivisuus", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Reeta Raimoaho (2014). The association between body composition, abdominal fat and phys-ical activity measured using different methods. Department of Health Sciences, University of Jyv\u00e4skyl\u00e4, Master\u2019s thesis of Sport Medicine, 60 pp., 9 appendicies.\n\nExcess visceral fat is a factor that increases the risk for health problems. Presumably physically active lifestyle can prevent the accumulation of total and visceral adipose tissue. An accurate measurement of visceral fat can be made using MRI which is expensive and time comsuming technique. Therefore the aim of this study was to find whether visceral fat area measured with MRI correlates to other simpler fat measuring techiques, namely DXA, bioimpedance and waist circumference. In addition the purpose was to find whether physical activity correlates to the measurements of abdominal fat with different devices (MRI, DXA, bioimpedance and waist circumference).\n\nFor the purpose of the study a set of 23 young normal weight adult male monotsygotic twin pairs from the FITFATTWIN study was used (total subject number n=46). The abdominal fat was measured with waist circumference, bioimpedance, DXA and MRI. In addition a retro-spective physical activity interview was performed to assess leisure-time physical activity volume during the past three years. The degree of correlations between devices (inter-device correlation) and the correlation between physical activity and devices was calculated using Pearson correlation coefficient. Fischer\u00b4s Z-transformation was used to determine the signifi-cance of differences between correlations. Furthermore, the participants were divided into inactive and active group based on their physical activity level (cut-point for division was 3.7 METh/day). The degree of correlation between physical activity and devices in the inactive and active group was calculated using Spearman correlation coefficient. The Mann Whitney exact test and Independent-Samples T Test were used to determine differences between groups.\n\nCorrelations between visceral fat area measured with MRI and the measurement of abdominal fat with other devices were r=.749\u2013.901 (p<.001) with significant differences (p<.05) between the strongest and the weakest correlations. Correlations between physical activity (mean 4.7 METh/d) and the measurements of the abdominal fat with different devices were r= -.495 \u2013 -.601 (p<.001). In active group correlations between physical activity and the measurements of abdominal fat were r= -.472 \u2013 -.670 (p<.05). However, the correlation between physical activ-ity and waist circumference wasn\u2019t significant (r = -.418, p=NS). Also in inactive group corre-lations between the same variables weren\u2019t significant. Compared to the inactive group (p=.001\u2013.048) the active group had significantly less fat in their body and less abdominal fat. However, there weren\u2019t significant difference between groups in BMI.\n\nResults of this study show that the measurements of abdominal fat with DXA, bioimpedance and waist circumference are useful to estimate the accummulation of visceral adipose tissue in normal weights men. However, these devices can\u2019t distinguish between different abdominal adipose tissue deposits. This study also shows that a physically active lifestyle decreases the amount of whole body and visceral adipose tissue in normal weight men and MRI, DXA, bi-oimpedance and waist circumference are usefull devices to detect these changes. The BMI and in really active persons waist circumference not necessarily detect it.\n\nKeywords: visceral adipose tissue, MRI, DXA, bioimpedance, waist circumference, physical activity", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Reeta Raimoaho (rejoraim) on 2014-07-25 06:47:49.578634. Form: Pro gradu -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake). 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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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