学科分类
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10 个结果
  • 简介:Background:Thephysiologicalandbiochemicaldemandsofintenseexerciseelicitbothmuscle-basedandsystemicresponses.Themainadaptationstoenduranceexerciseincludethecorrectionofelectrolyteimbalance,adecreaseinglycogenstorageandtheincreaseofoxidativestress,intestinalpermeability,muscledamage,andsystemicinflammatoryresponse.Adaptationstoexercisemightbeinfluencedbythegutmicrobiota,whichplaysanimportantroleintheproduction,storage,andexpenditureofenergyobtainedfromthedietaswellasininflammation,redoxreactions,andhydrationstatus.Methods:Asystematicandcomprehensivesearchofelectronicdatabases,includingMEDLINE,Scopus,ClinicalTrials.gov,ScienceDirect,SpringerLink,andEMBASEwasdone.Thesearchprocesswascompletedusingthekeywords:'endurance','exercise','immuneresponse','microbiota','nutrition',and'probiotics'.Results:Reviewedliteraturesupportsthehypothesisthatintestinalmicrobiotamightbeabletoprovideameasureable,effectivemarkerofanathlete'simmunefunctionandthatmicrobialcompositionanalysismightalsobesensitiveenoughtodetectexercise-inducedstressandmetabolicdisorders.Thereviewalsosupportsthehypothesisthatmodifyingthemicrobiotathroughtheuseofprobioticscouldbeanimportanttherapeutictooltoimproveathletes'overallgeneralhealth,performance,andenergyavailabilitywhilecontrollinginflammationandredoxlevels.Conclusion:Thepresentreviewprovidesacomprehensiveoverviewofhowgutmicrobiotamayhaveakeyroleincontrollingtheoxidativestressandinflammatoryresponsesaswellasimprovingmetabolismandenergyexpenditureduringintenseexercise.

  • 标签: 剧烈运动 肠道菌群 耐力 MEDLINE 炎症反应 氧化应激
  • 简介:为了为重油变换改进RFCC单位的能力,减少焦炭和油泥浆的收益,并且增加,经济单位受益,西诺佩克·卢奥伊昂·布朗奇公司开始在统一展示强壮的重油变换能力,焦炭的低收益和油泥浆的耐力催化剂的它的号码2RFCC使用了的开始的2007年8月,和高总数点亮液体产量。在2007年11月进行的耐力催化剂的刻度上的结果显示了那在这种情况下使用败坏,化工物品质量和催化剂,焦炭的收益,油泥浆和气体的更低的单位消费分别地由0.28%,1.24%和0.35%减少了。精华产量和全部的轻液体产出的光由0.8%增加了并且1.88%分别地。

  • 标签: 重油 催化裂化 催化剂 耐久力
  • 简介:<正>Purpose:Todeterminetheintra-testerreliabilityofclinicalmeasurementsthatassessfivecomponentsrelatedtocorestability:strength.endurance,flexibility,motorcontrol,andfunction.Methods:Participantswere15college-agedmaleswhohadnotsufferedanyorthopedicinjuryinthepastyear.Corestrengthmeasurementsincludedeightisometrictestsandasit-uptest.Thefourcoreendurancetestswerethetrunkflexortest,trunkextensortest,andbilateralsidebridgetests.Flexibilitytestsincludedthesit-and-reachtestandactiverangeofthetrunkandhipjointmotions.Proprioceptionviapassiverepositiontestsofthehipsandasinglelimbbalancetestonanunsteadyplatformwereusedtoevaluatecoremotorcontrol.Functionalmeasurementsconsistedofasquattestandasingleleghoptestfortimeanddistance.Measurementswereperformedduringtwodatacollectionsessionswithaweek’srestbetweenthesessions.Intra-classcorrelationcoefficientswerecalculatedtoestablishreliability.Results:Theoverallintra-raterreliabilityforallcorestabilityrelatedmeasurementsrangedfromlow(ICC=0.35,lefthipreposition)toveryhigh(ICC=0.98,sit-and-reach).Asagroup,thecoreendurancetestswereobservedtobethemostreliable.Conclusion:Therearehighlyreliabletestsineachofthefivegroups.Overall,coreendurancetestsarethemostreliablemeasurements,followedbytheflexibility,strength,neuromuscularcontrol,andfunctionaltests,respectively.

  • 标签: CORE stability ENDURANCE Reliability Strength
  • 简介:<正>Thishighlightarticlefocusesontheeffectsofdifferenttypesofexerciseonthepreventionandtreatmentoftype2diabetesandonfuturechallengesindevelopingeffectivepreventivestrategies.1.CurrentprevalenceofdiabetesinChinaCardiovasculardiseaseshavebecometheleadingcauseofdeathinChina.DiabetesisamajorriskfactorforcardiovasculardiseasesandtherapidchangeinlifestyleisthemainreasonfortheincreasedriskforcardiovasculardiseasesinChina.TheChina

  • 标签: CARDIOVASCULAR EXERCISE HIGHLIGHT LIFESTYLE METHYL
  • 简介:Purpose:Thepurposeofthisstudywastoexaminetheeffectsofpre-coolingandfluidreplacementwitheithercrushediceorcoldwater.Methods:On2separateoccasions,inacounterbalancedorder,9recreationally-trainedmalesingested1.25g/kg(80–100g)ofeithercrushedice(0.5℃)orcoldwater(4℃)every5minfor30minbeforeexercise.Theyalsoingested2.0g/kg(130–160g)ofthesametreatmentdrinkat15min,30min,and45minafterthecommencementofcyclingtoexhaustionat60%VO2maxuntilvoluntaryexhaustioninahotenvironment(35℃and30%relativehumidity).Results:Thecyclingtimetoexhaustioninthecrushedicetrial(50.0±12.2min)waslongerthanthecoldwatertrial(42.2±10.1min;p=0.02).Althoughtherectaltemperaturefellby0.37℃±0.03℃(p=0.01)attheendoftherestingperiodafterthecrushediceingestion,theratesofriseinrectaltemperatureduringtheexerciseperiodwerenotsignificantlydifferentbetweenthese2conditions(crushedice:0.23℃±0.07℃,5min;coldwater:0.22℃±0.07℃,5min;p=0.94).Conclusion:Crushediceingestionbeforeandduringexerciseinahotenvironmentmaybeapreferredandeffectiveapproachforminimizingthermalstrain,andforimprovingenduranceperformanceascomparedwithcoldwateringestion.

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  • 简介:Objective:Thissystematicreviewaimedtocriticallyanalyzetheliteraturetodeterminehowhigh-intensityintermittenttraining(HIIT)affectsrecreationalendurancerunnersintheshort-andlong-term.Methods:ElectronicdatabasesweresearchedforliteraturedatingfromJanuary2000toOctober2015.Thesearchwasconductedusingthekeywords'high-intensityintermittenttraining'or'high-intensityintervalexercise'or'intervalrunning'or'sprintintervaltraining'and'endurancerunners'or'longdistancerunners'.Asystematicapproachwasusedtoevaluatethe783articlesidentifiedforinitialreview.StudieswereincludediftheyinvestigatedHIITinrecreationalendurancerunners.ThemethodologicalqualityofthestudieswasevaluatedusingthePhysiotherapyEvidenceDatabase(PEDro)scale(forinterventionstudies)andthemodifiedDownsandBlackQualityIndex(forcross-sectionalstudies).Results:Twenty-threestudiesmettheinclusionarycriteriaforreview.Theresultsarepresentedin2parts:cross-sectional(n=15)andinterventionstudies(n=8).Inthe15cross-sectionalstudiesselected,endurancerunnersperformedatleast1HIITprotocol,andtheacuteimpactonphysiological,neuromuscular,metabolicand/orbiomechanicalvariableswasassessed.Interventionstudieslastedaminimumof4weeks,with10weeksbeingthelongestinterventionperiod,andincluded2to4HIITsessionsperweek.MostofthesestudiescombinedHIITsessionswithcontinuousrun(CR)sessions;2studies’subjectsperformedHIITexclusively.Conclusion:HIIT-basedrunningplans(2to3HIITsessionsperweek,combiningHIITandCRruns)showathleticperformanceimprovementsinendurancerunnersbyimprovingmaximaloxygenuptakeandrunningeconomyalongwithmuscularandmetabolicadaptations.Tomaximizetheadaptationstotraining,bothHIITandCRmustbepartoftrainingprogramsforendurancerunners.

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