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1、迈克尔·莫斯利说过，不是所有人都有机会去健身房，但就算做家务也能健身。这是真的吗？Noteveryonecangettothegym-butisitreallypossibletogetfitbyjustdoingone'schores,asksMichaelMosley.Youmightwanttoreadthisarticlewhilestanding1up.Orperhapswhilestrollingaroundtheroom.Becausethesadfactisthatmostofusspendfartoomuchti
2、mesittingonourbottomsstaringatscreens.Wedriveeverywhere,avoidthestairs,packourhouseswithlabour-savingdevicesandemailcolleaguesratherthanwalkdownthecorridortotalktothem.Weareaslothfullotandthemostcommonreasongivenfornotdoingenoughexerciseislackoftime.Butwhatisenoughexe
3、rcise?Mosthealthexpertsrecommendatleast150minutesofmoderate-intensity2physicalactivity,or75minutesofvigorousactivityaweek.Anyactivitywillhelpbutithastobemoderate,vigorousorhighintensityifyoureallywanttoreducetheriskofheartdisease,cancerandobesity3.Ifyou'renotthatkeeno
4、ngoingtothegymorplayingsport(andsurveyssuggestlessthan20%ofusare),thencanyoucheatyourwayto150minutesofmoderate-intensityphysicalactivitybydoingregularweeklychores?Andifso,whichonescount?Tofindout,theTrustMeI'maDoctorteamrecruitedeightvolunteers,alldifferentshapesandsi
5、zes,andfittedthemwithactivitymonitors.Thenweaskedthemtodoarangeofindoorandoutdoortasks.Westartedwithfourtypicalhouseholdchores-ironing,vacuuming,dustingandmopping.Afterourvolunteershadcompletedeachactivity,exercisescientistDrAndyBlannincollectedtheirdataandgradedeacho
6、nascaleofoneto10,usingsomethingcalledaMETscore.MET(MetabolicEquivalentofTask)isameasureofenergyconsumedperhour.AMETscoreofoneisthesortofenergyyouwouldexpend4watchingTV.Anythingwhichgetsascoreabovethreecountsasmoderateactivity.Abovesixandyouareintherealmsof"vigorous".I
7、roninganddusting,notsurprisingly,scoredmodestly,withMETscoresof1.3and1.5respectively.Vacuumingandmopping,thoughhardlyOlympicsports,scoredjustabovethreeMETs,makingthemmoderate-intensity.Whiledoingtheseactivitiesourvolunteerswereburningthreetimesmoreenergythanwhentheywe
8、rejustsitting.Ourvolunteersclaimedtospendanaverageof37minutesperweekonthesetwotasks,whichmeanttheywerealreadyalmostaquartero
