Ubuningi be-VO2: Kuyini, ukukala kanjani nokuthi unganda kanjani

-Delile

• Yini i-VO2 ejwayelekile
• Ukuhlolwa okuphezulu kwe-VO2
• 1. Ukuhlolwa okuqondile
• 2. Ukuhlola okungaqondile
• Ungayinyusa kanjani i-VO2 ephezulu

Isilinganiso esiphezulu se-VO2 sihambisana nomthamo womoya-mpilo odliwe ngumuntu ngenkathi kwenziwa umsebenzi we-aerobic, njengokugijima, ngokwesibonelo, futhi uvame ukusetshenziselwa ukuhlola ukuqina komzimba womsubathi, ngoba umele amandla we-aerobic we umuntu ngendlela engcono kakhulu. abantu.

Isilinganiso esifingqiwe se-VO2 simele i-Maximum Oxygen Volume futhi siveza ngokukhethekile amandla omzimba wokuthwebula umoya-mpilo osemkhathini awulethe emisipheni ngesikhathi sokuzikhandla. Ukuphakama kwe-VO2, kukhula kakhulu ikhono lokuthatha i-oksijini etholakalayo evela emoyeni futhi uyise emisipheni kahle nangokushesha, okuncike ekuphefumuleni komuntu, emandleni okujikeleza kwegazi nasezingeni lokuqeqeshwa.

I-VO2 ephezulu kakhulu ihlobene nezinzuzo zezempilo ezinjengengcuphe ephansi yesifo senhliziyo, umdlavuza, ukudangala kanye nohlobo lwesifo sikashukela sohlobo 2, ikakhulukazi ngenxa yemikhuba enempilo nesimo somzimba.

Yini i-VO2 ejwayelekile

I-VO2 ephezulu yendoda ehlala phansi icishe ibe ngama-30 kuye kuma-35 mL / kg / min, kuyilapho abagijimi abadume kakhulu bemarathon benama-VO2 max cishe angama-70 mL / kg / min.

Abesifazane, ngokwesilinganiso, bane-VO2 ephansi kancane, esukela ku-20 kuye ku-25 mL / kg / min kwabesifazane abahleli phansi kuze kufike ku-60 mL / kg / min kubasubathi ngoba ngokwemvelo banenani elikhulu lamafutha ne-hemoglobin encane.

Abantu abahlala phansi, okungukuthi, abangajimi, bangayithuthukisa i-VO2 yabo ngokushesha okukhulu, kepha-ke, abantu asebevele beqeqeshwe kahle futhi abenza ukuzivocavoca umzimba njalo, kungenzeka bangakwazi ukukhulisa i-VO2 yabo kakhulu, yize ingathuthuka ukusebenza kwabo ngendlela ejwayelekile. Lokhu kungenxa yokuthi leli nani liphinde lihlobene nezakhi zofuzo zomuntu uqobo, yingakho abantu abathile bekwazi ukukhulisa i-VO2 yabo ngesikhathi esincane sokuqeqeshwa.

Ngaphezu kokuthi i-VO2 ihlobene nezakhi zofuzo, ibuye ithonywe iminyaka yomuntu, ubuhlanga, ukwakheka komzimba, izinga lokuqeqeshwa nohlobo lokuvivinya umzimba okwenziwayo.

Ukuhlolwa okuphezulu kwe-VO2

1. Ukuhlolwa okuqondile

Ukukala i-VO2, kungenziwa futhi i-ergospirometry test, ebizwa nangokuthi yi-pulmonary test test noma isivivinyo sokuzivocavoca, esenziwa kuthillmill noma ibhayisikili lokuzivocavoca, nomuntu ogqoke imaski ebusweni kanye nama-electrode anamathiselwe emzimbeni. Lokhu kuhlolwa kukala i-VO2 ephezulu, ukushaya kwenhliziyo, ukushintshaniswa kwegesi ngokuphefumula nokuzikhandla okubonakalayo ngokusho kokuqina koqeqesho.

Ukuhlolwa kuvame ukucelwa ngudokotela wenhliziyo noma udokotela wezemidlalo ukuthi ahlole abasubathi, noma ahlole impilo yabantu abahlushwa izinkinga zamaphaphu noma zenhliziyo, futhi kwezinye izimo, inani le-lactate egazini nalo lilinganiswa ekugcineni isivivinyo.

Futhi bona ukuthi yisiphi isilinganiso senhliziyo esifanele ukulahleka kwesisindo.

2. Ukuhlola okungaqondile

I-VO2 ephezulu nayo ingalinganiselwa ngokungaqondile ngokuhlolwa komzimba, njengoba kunjalo nge-Cooper test ehlola amandla we-aerobic, ngokuhlaziywa kwebanga elihlanganiswe umuntu phakathi nemizuzu eyi-12, ngenkathi uhamba noma ugijima ngamandla amakhulu.

Lapho amanani eseqashelwe, kuyadingeka ukwenza ukubalwa kusetshenziswa i-equation, ezonikeza inani eliphakeme lomuntu ngamunye le-VO2.

Thola ukuthi ukuhlolwa kwe-Cooper kwenziwa kanjani futhi ubone ukuthi unganquma kanjani i-VO2 ephezulu.

Ungayinyusa kanjani i-VO2 ephezulu

Ukukhulisa i-VO2 ephezulu kuyadingeka ukukhulisa ukuqeqeshwa ngokomzimba ngoba kuthuthukisa isimo somzimba, okwenza umzimba uthathe i-oxygen kangcono uyisebenzise ngendlela engcono, uvikele ukukhathala. Imvamisa, kungenzeka kuphela ukwenza ngcono i-VO2 max cishe ngama-30% futhi lokhu kuthuthukiswa kuhlobene ngqo nenani lamafutha omzimba, ubudala nobukhulu bemisipha:

• Inani lamafutha: amafutha amancane omzimba, kukhulu i-VO2;
• Ubudala: uma umuntu esemncane, i-VO2 yabo ingaba phezulu;
• Imisipha: kukhula isisindo semisipha, kukhulisa amandla we-VO2.

Ngaphezu kwalokho, ukuqeqeshwa okuqinile okungenani okungama-85% wesilinganiso senhliziyo nakho kusiza kakhulu ukukhuphula izinga le-VO2, kepha njengoba lokhu kungukuqeqeshwa okunamandla kakhulu, akunconyelwa noma ngubani oqala ukuvivinya umzimba. Ukuqala ukuzivocavoca umzimba nokwandisa i-VO2, kunconywa ukuqeqeshwa okulula, cishe okungama-60 kuye kuma-70% weVO2, okufanele iqondiswe njalo ngumqeqeshi wokuzivocavoca. Ngaphezu kwalokho, inketho yokwenza ngcono i-VO2 ingukuqeqeshwa kwesikhawu, okwenziwa ngamandla amakhulu.