Liikunta suojaa dementialta

Väestön ikääntymisen myötä myös muistisairaudet yleistyvät.

Aiemmissa tutkimuksissa on osoitettu elämätapojen kuten terveellisen ravitsemuksen ja liikunnan alentavan dementiariskiä. Tutkimusnäyttö liikunnan yhteydestä dementiaan on kuitenkin ollut ristiriitaista: kaikissa tutkimuksissa liikunnan suojavaikutusta ei ole pystytty osoittamaan. Tämän on esitetty johtuvan muun muassa liian lyhyestä seuranta-ajasta, liikunnan tehokkuudesta tai vaikutusta muokkaavista tekijöistä kuten sukupuolesta, painoindeksistä, iästä tai Alzheimerin taudin perinnöllisistä riskitekijöistä.

Nyt julkaistussa Itä-Suomen yliopistossa tehdyssä tutkimuksessa havaittiin, että keski-iässä liikuntaa vähintään kahdesti viikossa harrastaneet sairastuivat harvemmin dementiaan kuin ne, jotka harrastivat vähemmän liikuntaa. Suojaava yhteys havaittiin koko tutkimusväestössä, mutta se oli erityisen voimakas ylipainoisilla ja lihavilla henkilöillä. Tulosten perusteella liikunnan hyötyvaikutukset eivät selity muilla elämäntavoilla, terveydentilalla tai sukupuolella. Hyödyt vaikuttaisivat myös olevan erityisen suuria ylipainoisilla henkilöillä. Myös ne henkilöt, joilla on perinnöllinen alttius muistisairauksiin, hyötyvät liikunnasta.
Vaikka keski-iän elämäntapojen merkitys muistisairauksien ehkäisyssä onkin kiistaton, tulosten perusteella myös vanhemmalla iällä aloitettu liikuntaharrastus voi suojata dementialta. Useat meneillään olevat tutkimukset selvittävät parhaillaan, onko liikunnan muodolla, kestolla tai intensiteetillä merkitystä.

Teksti: Hymy
Avainsanat: dementia, liikunta, muistisairaus

Kommentit

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Miksei mainita, ette4 tekije4 on ampieien tapausten perusteella luultavasti nainen (aivan niin kuin kohdunryf6stf6isse4) – vai onko se liian ilmeiste4?:”Vauvakaappaaja todenne4kf6isesti mielisairas”..Kaikki suurimmat uutistoimistot maailmassa noudattavat agendaa, jonka mukaan miehen sukupuolta ei mainita, jos kyseesse4 on uhri tai hyve4ntekije4 (’firefighter’ pelasti ihmisie4 tai ’five coal miners died in an accident’, ei koskaan ’five men died’..)..Ja samoin naisen sukupuoli muistetaan aina mainita, kun kyseesse4 on uhrius tai hyve4t teot/tapahtumat.Tietenkin samalla myf6ske4e4n naisen sukupuolta ei mainita, kun kyseesse4 on rikos tai muu paha/huono asia, ja miehen sukupuoli muistetaan AINA mainita, kun kyseesse4 on rikos tai paha/huono asia.Te4me4 ei ole mite4e4n lonkalta heitettye4 sattumaa, vaan tarkkaan suunniteltu agenda, jota uutistoimistot ike4ve4 kylle4 orjallisesti noudattavat. Youtubesta lf6ytyy havainnollistavia videoita aiheesta, mutta en nyt jaksa le4htee4 niite4 kaivamaan.- Vortac

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