课件科学美国人sa health.pdfVIP

KidsWhoExerciseDon’tSweatTests

Heykids,here’sagoodreasontoworkupasweat:whenyoungpeople

exerciseforanhoureachdayitalsohelpsboosttheirbrainpower.That’s

accordingtoastudyofmorethan200kidsinthejournalPediatrics.[Charles

H.Hillmanetal:EffectsoftheFITKidsRandomizedControlledTrialon

ExecutiveControlandBrainFunction]

Seven,eightandnineyear-oldswererandomlyselectedtoenrollinanafter-

schoolexerciseprogramorbeplacedonawaitlist.Theexercisersperformed

muchbetteronintellectualtests.Andtherewasadosageeffect:kidswho

spentmoretimeintheprogramperformedevenbetterthankidswhowere

enrolledintheprogrambuthadspottyattendance.

Governmentguidelinesalreadyrecommendthateveryoneaged6to17

engageinanhourormoreofmoderate-andvigorous-intensityphysical

activitydaily,butmanykidsstilldonotmeetthisthreshold.Bettercognitive

capabilitiescouldbeasellingpointformoreexercise.

Thestudycouldnotteaseaparthowmuchincreasedphysicalfitnessversus

socialinteractionsintheexerciseprogrammayhavecontributedtobetter

accuracyoncognitivetasks.Butotherworkhassuggestedthatexerciseis

betterforcognitionthansocialinteractionsalone.Regardless,aworkoutthat

offersbothisawin-win.

—DinaFineMaron

锻炼的孩子不会进行出汗测试嘿，孩子们，这是锻炼身体的好理由：年轻人每天锻炼一小时也有助于提高他们的脑

力。这是根据《儿科学》对200多名儿童的一项研究得出的结论。[CharlesH.Hillman等人：FITKids随机对

照试验对执行控制和脑功能的影响]

七、八和九岁的儿童被随机选中参加课后锻炼或被列入候补。锻炼者在智力测试中的表现要好得多。而且

还有剂量效应：在该上花费时间的孩子的表现甚至比参加该但出勤率不稳定的孩子更好。

指南已经建议6至17岁的每个人每天进行一小时或更长时间的中等强度和高强度体育锻炼，但许多孩子仍

然没有达到这个标准。更好的认知能力可能是锻炼的卖点。这项研究无法区分锻炼中身体素质的提高和社交

互动对认知任务准确性的提高有