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Thaum koj xav txog cov leeg mob, feem ntau cov neeg xav tias ua rau ib leeg ua daim ntawv cog lus thiab luv, xws li thaum lub sij hawm biceps curl. Txawm li cas los xij, lwm hom nqaij leeg yuav tshwm sim thaum uas cov leeg mob ntev li nws cov ntawv cog lus. Qhov no hu ua eccentric nqaij contraction. Qhov no yog ib hom kev ua rau cov leeg ua kom nce siab ntawm ib leeg thaum nws ntev.
Eccentric contractions feem ntau tshwm sim thaum ib qho kev tawm tsam tiv thaiv ib qho kev quab yuam, uas ua rau cov nqaij ua kom ntev li nws cov ntawv cog lus. Nws qee zaum yog hu ua kev txiav plaub ntug, kev ua haujlwm tsis zoo, lossis kev tsis pom zoo.
Cov Cwj Pwm Uas Ua Ntej Eccentric Cov Tuam Txhab
Cov kev ua ntau hom uas ua rau muaj kev sib cog lus ntawm eccentric yog xws li nce ntaiv, khiav qis, hnyav zuj zus, thiab nqis qis ntawm cov neeg zaum , thawb tawm los yog rub tawm . Eccentric contractions yog ib qho ua rau ntau yam kev ua si uas koj xav tau tswj los yog tsis muaj hom kab mob.
Eccentric contractions yog txuam nrog qhov pib ntawm nqaij ntshiv si. Cov mob Eccentric nqaij hlav kuj tseem tuaj yeem cuam tshuam nrog cov leeg muaj zog ntau dua thaum siv cov lus cog lus concentric .
Daim ntawv cog lus nqaij leeg li cas?
Raws nraim li cas cov leeg nqaij ua hauj lwm thaum lub caij ntsig txog eccentric tseem tsis zoo to taub. Cov kws tshawb fawb xav tias lawv to taub concentric contraction, tab sis lub tswv yim ntawm eccentric contraction tseem yog ib qho tsis.
Eccentric txhais tau hais tias "deb ntawm qhov chaw," thiab nyob rau hauv txoj kev mob eccentric, cov nqaij ntshais.
Thaum lub sij hawm siv eccentric contraction, cov leeg mob nyhav thiab nws sim ua kom luv, lossis cog lus. Tab sis muaj ib qho kev tawm dag zog yuam, xws li hnyav hnyav hauv koj txhais tes, uas yog yooj yim rau nws ua kom ntev mus.
Vim li ntawd, cov leeg thiab cov leeg ua rau tswj thiab qeeb qhov kev nqis tes, tab sis tsis tau kom nws txav mus rau hauv qhov fab ntxeev. Koj muaj peev xwm txo qhov nyhav nrog kev tswj es nws tsuas rub koj txhais tes rau hauv av.
Peb siv eccentric contraction tas li nyob rau txhua hnub kev ua si. Taug kev yog ua ke ntawm concentric thiab eccentric contractions. Koj lub kauj khawm yuav yooj yim ntog thiab ncuav av hauv av tsis muaj qhov kev sib tw ntawm cov hlaub uas ua rau nws ua tus tswj kav. Thaum koj taug txoj kev nqis roob , lub quadriceps nyob ntawm sab nraum lub thawv daim ntawv cog lus eccentrically khoov koj lub hauv caug. Tsiv koj txhais caj npab los tso rau hauv cov khoom yog lwm tus qauv.
Koj cov nqaij hauv cov Springs thiab Cov Shock Absorbers
Eccentric nqaij contraction ua haujlwm tsis zoo. Qhov no yog vim qhov ua hauj lwm yog lub sij hawm xa tawm ntawm lub zog, thiab lub zog ntawm cov leeg ua tau yog nyob rau ntawm qhov kev tawm tsam ntawm kev tawm suab uas tshwm sim. Cov nqaij khw qee yam ntawm cov khoom siv dag zog no thiab qee yam ntawm nws yog hloov mus rau hauv tshav kub. Yog hais tias muaj ib qho kev ua rau qis qis qis, cov nqaij thiab cov leeg yuav tsum khaws cov kua hluav taws xob, uas yuav siv tau rau lub sij hawm luv luv. Nws yog qhov zoo tshaj plaws kom siv tau qhov no, lub ntuj khiav los yog hopping pace qhov twg koj tau txais txiaj ntsim tshaj plaws los ntawm kev siv zog no.
Yog tias koj mus qeeb qeeb, koj siv zog ntau dua nyob rau ntawm qhov kev txiav txim siab concentric tsis muaj kev pabcuam ntawm lub zog khaws cia.
Tsev Nqa Nrog Eccentric Contraction
Eccentric qoj ib ce ua tau sai thiab tsim kom muaj cov leeg. Piv txwv, hiking downhill rau thawj zaug tuaj yeem ua rau ntau cov nqaij mob hauv quadriceps, tshwj xeeb tshaj yog hnub tom qab. Tab sis nws tsuas yog siv ob peb repeats rau cov leeg thiab cov leeg ua tau zoo dua thiab ua lub siab dua yog tias tib txoj kev taug mus los yog qhov kev nce npoj ntxiv lawm tsis tuaj yeem ua rau qeeb nqaij ntshiv lawm.
Kev kawm kis las feem ntau siv cov plyometrics thiab kev xyaum eccentric los tsim cov nqaij thiab lub zog.
Khiav, ncaws pob, dhia, dhia ua si thiab cuam pob txhua pob siv tag nrho cov qe pob txha coj mus ua kom muaj hwj chim.
Pilates cov kev ncaws pob kuj feem ntau siv cov lus cog tseg ntawm eccentric, tiv thaiv lub springs hauv kev kho dua tshiab thiab lub ntiajteb txawj nqus hauv lub cev hnyav mat ce. Kev siv Eccentric feem ntau yog siv los kho, xws li ACL puas tsuaj.
> Source:
> Eccentric Nqaij Hlav Tshuaj. KenHub.