双语做仰卧起坐有害健康

发布时间:2017-6-18 8:47:35   点击数:

Manysportspeopledosit-upsaspartofaraftofexerciseswhichaimtoimprovetheircorestability,butresearchfromThomasNesserfromIndianaStateUniversitysuggeststhatimprovingyourcorestabilitydoesntnecessarilyresultinbetterathleticperformance.

很多运动人士将仰卧起坐作为锻炼的一种方式,来提高自己身体核心区的稳定性。但是印第安纳州立大学的托马斯·内赛尔的研究表明,核心区稳定性的提高不一定会让你在运动上有很好的表现。

Whetherornottheyprovideyouwithpreciselythephysiqueorfitnessyoudesire,couldsit-upsbringunintendedconsequencessuchasbackpain?StuartMcGill,professorofspinebiomechanicsattheUniversityofWaterlooinCanadahasbeenstudyingsit-upsforyearsandisconvincedthatthetraditionalcrunchdoesindeedcauseusharm.

不管仰卧起坐是否真的能助你实现你想要的体格或健身效果,它们有可能会带来如背部疼痛这样意想不到的后果吗?加拿大滑铁卢大学的生物力学脊柱教授斯图尔特·麦吉尔对仰卧起坐已经研究多年,深信这一传统的收腹运动确实会有损我们的身体。

Heconducteddozensofstudiesinhisspinebiomechanicslabusingthecadaversofpigs,repeatedlyflexingtheirspinesinasimilarwayasapersonmightwhendoingasit-up,butformany,manyhoursatatime.Whenheexaminedthediscsinthespineafterwards,hefoundthattheyhadbeensqueezedtothepointwheretheybulged.Ifthesamethinghappenedinahumanthiswouldpressonthenerves,causingbackpain,andpossiblyevenaherniateddisc.

在脊椎生物力学实验室,他在猪身上已经进行过几十次的研究。通过模仿人做仰卧起坐时的姿势,他不断地弯曲猪的脊椎,一次长达数小时。随后,他检验猪的脊椎盘,发现弯曲时隆起的部位已经被挤压成尖状。如果同样的事情发生人身上,这将压迫到神经,造成背部疼痛,甚至可能是椎间盘突出。

Pigswerechosenforthisexperimentbecausetheirspinesaremoresimilartohumanspinesthanthoseofmanyotheranimals,butofcoursecriticsofthesestudiespointout,thattherearestillmanydifferencesbetweenpeopleandpigs.Alsothesestudiesinvolvedthousandsofcontinuouscyclesofbending.Evenwhentraininghard,peopletakebreaksbetweensetsofcrunches.

之所以将猪选为实验对象,是因为与其他动物相比,他们的脊椎与人类的脊椎相似度更高。当然,研究的反对者指出,人和猪之间仍有许多不同之处。此外,在研究过程中,对猪的脊椎进行弯曲的频次过多。而对于人来说,训练再刻苦,中间也会有休息。

Perhapstheseresultstelluswhatmighthappenattheextremesintheunlikelyeventthatyouweretodosit-upsforhouruponhour,butinreallifeitsclearlynotthecasethatmostpeopledamagetheirdiscsmostofthetimewhendoingsetsof15sit-ups.However,injuriescanhappen.ResearchpublishedinonsoldiersstationedattheUSmilitarysFortBraggattributed56%ofalltheinjuriessustainedduringthetwo-yearlyArmyPhysicalFitnessTest,tosit-ups.

也许这些研究结果告诉我们的是极端情况下的后果,就像你几乎不可能一小时接着一小时地一直做仰卧起坐。在现实生活中,大部分人一般只是做15组仰卧起坐。而即便如此,伤害还是有可能会发生。年对驻扎在布拉格堡的美军士兵的研究表明,在两年的陆军体能测试期中,56%的伤害归因于仰卧起坐。

Somepeopleseemtobemorepronetobackproblemscausedbysit-upsthanothers.Wemightbefinedoing30sit-upsadayfordecades,butwemightnotanditshardtoknowwhichgroupwefallinto.Itcould







































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