出国留学：托福提分试题

出国留学托福提分试题出国留学托福提分试题托福考试越来越接近了，同学们复习得怎样了？坚持每天练习，最终托福成果肯定会提高不少，为了帮忙同学们更有效的复习，我整理了托福提分试题供大家复习加拿大一项新讨论发觉，患二型糖尿病的病人，若能同时做有氧及重量训练运动，将可显着地降低血糖ArticleIt sno secretthat exercise is keyto controllingtype2diabetes一and manydoctors alreadyurge theirdiabetic patientsto getactive.But it s avague directive:How muchexercise isenough HowoftenAnd whatkind Thesimple answeris thatany isbetter thannone一in sum,that swhat anew studypublished inthe Sept.18issue ofthejournal Annalsof InternalMedicine found.But italso foundthatnot allexerciseiscreated equaland thatthe combinationof aerobicexerciseand weighttraining issignificantly betterfor controllingbloodsugar thaneither alone.The elegantlydesigned study,led byresearchers attheUniversity of Calgary andthe Universityof Ottawa,involved251patients aged39to70,with type2diabetes.The patients,none ofwhomwere regularexercisers,were randomizedto oneof fourgroups:aerobic exercise,resistance training,a combinationof both,or none.For22weeks,the aerobic group千里之行，始于足下worked outfor45minutes threetimes aweek onthe treadmillorstationary bicycle;the resistance-training groupspent anequalamount oftime onweight machines.The combinationgroup wasat thegymtwice aslong asthe othertwo exercisegroups,doing thefullaerobic plusweight-training regimens.We builtup graduallyto45minutes,but its certainlyvigorous,says Dr.Ronald Sigal,leadauthor ofthe studyand associateprofessor ofmedicine andcardiacsciences atthe UniversityofCalgary.It snot sprintingor maximalexerciselike amarathon trainerwould do,but forsomeone whosmiddle-aged andolder andvery overweight,itsfairly strenuous.Overall,researchers sawimprovements inblood-sugar controlinall thepatients whoworked out.Compared with controls,patients intheaerobicgrouphad areduction of.51%in theirhemoglobin A1Cvalues一a testthat measuresblood-sugar controlover theprevioustwo tothree monthslower isbetter.The weight-training grouphada.38%reduction comparedwithcontrols.But thecombined exercisegroupshowed furtherimprovements:in thosepatients,the A1C valueswentdown anadditional.46%over theaer文档内容到此结束，欢迎大家下载、修改、丰富并分享给更多有需要的人。