2024 Tus sau: Graham Miers | [email protected]. Kawg hloov kho: 2024-02-25 03:24
Kuv puas tuaj yeem hloov kuv cov nqaij ntshiv ceev kom qeeb twitch cov leeg thiab rov ua dua?
Ua ntej peb dhia mus rau hauv cov lus teb, muaj ob peb yam koj yuav tsum paub txog hom fiber ntau. Ua ntej, cov kws tshawb fawb feem ntau faib tib neeg cov leeg nqaij raws li Hom I (slow twitch), Hom IIa (ceev twitch), lossis hom IIx (super ceev twitch). Raws li cov txheej txheem ntawm kev ntaus ntawv fiber ntau tau dhau los ua tseeb, txawm li cas los xij, cov kws tshawb fawb tam sim no paub tias hom fiber ntau muaj nyob rau ntawm qhov txuas ntxiv. "Peb muaj cov fibers qeeb thiab ceev fibers, tab sis peb kuj muaj lwm pawg hu ua hybrid fibers uas qhia txog qhov zoo ntawm ob qho tib si qeeb thiab ceev," said Scott Trappe, tus xibfwb ntawm kev tawm dag zog kev tshawb fawb thiab tus thawj coj ntawm Human Performance Laboratory ntawm Ball State University.
Thaum cov kws tshawb fawb feem ntau pom zoo tias fibers tuaj yeem hloov pauv hauv lawv tus kheej hom-IIa tuaj yeem hloov mus rau IIx thiab rov ua dua, piv txwv li-lawv tseem tab tom sib cav txog seb peb puas tuaj yeem, los ntawm kev cob qhia, hloov ntawm Hom I thiab Hom II nqaij fibers. Case in point: Thaum Sab Nraud hu rau Phau Tsom Faj Txog Lub Zog thiab Kev Kho Kom Zoo kom tau txais ib daim qauv ntawm ib tsab xov xwm tshaj tawm tsis ntev los no tham txog cov lus nug no, cov kws kho mob tau hais tias, peb tuaj yeem muaj nws, tsuav yog peb "ua kom cov lus teb yog lawm, thiab Teb yog TSIS TAU, ib tus tsis tuaj yeem hloov pauv hauv cov fiber ntau hom I mus rau II, tsuas yog nyob rau hauv I lossis II subtypes."
Tab sis Trappe ntseeg lwm yam. "Nrog rau kev cob qhia, tej zaum koj tuaj yeem hloov koj hom fiber ntau txog 10 feem pua," nws hais. Cov neeg feem coob tau yug los nrog txog 50/50 sib cais ntawm cov leeg qeeb thiab nrawm nrawm, nws hais tias, thiab nws yog qhov tseeb, yam tsis tau tshem tawm koj cov leeg nqaij rau kev kuaj ntshav, yog tias koj yog ib tus neeg ncaws pob uas muaj txiaj ntsig zoo lossis sprinter uas koj. tej zaum yug los nrog qeeb-twitch lossis ceev-twitch fibers, feem.
Cov kab lus hais los saum toj no taw qhia tias cov kws tshawb fawb tseem muaj ntau cov lus nug los teb. Peb tsis paub seb cov leeg nqaij puas muaj ntau dua malleable thaum ntxov hauv lub neej; txawm tias qee cov leeg, zoo li cov biceps, muaj kev txawj ntse ntawm kev hloov fiber ntau dua li lwm tus; lossis, yog tias cov leeg tuaj yeem hloov pauv ntawm Hom I thiab Hom II, nws yuav siv sijhawm ntev npaum li cas los ua. Feem ntau cov kev tshawb fawb txog tam sim no tau tshuaj xyuas qhov cuam tshuam ntawm kev tawm dag zog ntawm cov leeg nqaij fiber ntau tshaj li tsib mus rau rau lub hlis. Tsis tas li ntawd, peb tseem tsis tau paub qhov tseeb mechanism tom qab fiber ntau hloov dua siab tshiab, txawm tias qee cov kws tshawb fawb ntseeg tias nws yuav tsum ua nrog cov hlab ntsha uas ua rau cov leeg.
Txhua yam no txhais li cas rau koj? Tej zaum qhov koj twb paub lawm los ntawm kev cob qhia: Koj tuaj yeem txhim kho koj txoj kev nrawm thiab kev ua siab ntev, tab sis yog tias koj yug los nrog qhov nruab nrab ntawm qhov ceev-twitch fibers, tej zaum koj yuav tsis khiav nrawm li Allyson Felix.
LUB KAUJ RUAM: Yog lawm, koj tuaj yeem hloov koj cov leeg nqaij fiber ntau los ua tus neeg ncaws pob zoo dua los yog sprinter. Cov kws tshawb fawb tseem tab tom sib cav txog ntau npaum li cas koj tuaj yeem hloov pauv los ntawm kev cob qhia, thiab seb qhov kev hloov pauv tshwm sim hauv cov pawg qeeb thiab ceev fibers (xws li twitch ceev mus rau super ceev twitch), los yog hla qeeb twitch thiab ceev twitch fibers.
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