Ubuninzi be-VO2: Yintoni, indlela yokulinganisa kunye nokonyusa

Umxholo

• Yintoni iVO2 eqhelekileyo
• VO2 uvavanyo olukhulu
• 1. Uvavanyo olungqalileyo
• 2. Uvavanyo olungqalileyo
• Ungalonyusa njani elona VO2 liphezulu

Elona VO2 liphezulu lihambelana nomthamo weoksijini odliwe ngulo mntu ngexesha lomsebenzi we-aerobic, njengokubaleka, umzekelo, kwaye uhlala usetyenziselwa ukuvavanya ukomelela kwembaleki, kuba imele amandla e-aerobic umntu ngeyona ndlela ilungileyo.

Isichazi seVO2 ubuninzi bumi kwiVolumu yeOxygen ephezulu kwaye ichaza ngokukodwa amandla omzimba okuthatha ioksijini evela emoyeni kwaye ayihambise kwimisipha ngexesha lomzimba. Ukuphakama kwe-VO2, kokukhona amandla okuthatha i-oksijini ekhoyo emoyeni kwaye ayise kwimisipha ngokufanelekileyo nangokukhawuleza, exhomekeke ekuphefumlweni komntu, amandla okujikeleza kunye nenqanaba loqeqesho.

Eyona nto iphakamileyo i-VO2 inxulumene nezibonelelo zezempilo ezinje ngomngcipheko osezantsi wesifo sentliziyo, umhlaza, uxinzelelo kunye nohlobo lweswekile yesi-2, ngakumbi ngenxa yemikhwa esempilweni kunye nemeko yomzimba.

Yintoni iVO2 eqhelekileyo

Ubuninzi be-VO2 yendoda ehleli phantsi imalunga ne-30 ukuya kwi-35 mL / kg / min, ngelixa iimbaleki ezaziwa kakhulu zembaleki zine-VO2 max emalunga ne-70 mL / kg / min.

Abasetyhini, ngokomndilili, i-VO2 esezantsi kancinci, ukusukela kwi-20 ukuya kwi-25 mL / kg / min kwabasetyhini abahleliyo ukuya kuthi ga kwi-60 mL / kg / min kwiimbaleki kuba ngokwendalo banenani elikhulu lamafutha kunye nehemoglobin encinci.

Abantu abahleliyo, oko kukuthi, abangawenzi umthambo, banokuyiphucula i-VO2 yabo ngokukhawuleza, nangona kunjalo, abantu esele beqeqeshiwe kakuhle kwaye bezilolonga rhoqo, abanakukwazi ukuyinyusa kakhulu i-VO2, nangona ingaphucula intsebenzo yabo ngokubanzi. Kungenxa yokuba eli xabiso likwanxulunyaniswa nemfuza yomntu, yiyo loo nto abantu abathile bekwazi ukuyonyusa i-VO2 yabo ngexesha elincinci loqeqesho.

Ukongeza kwi-VO2 enxulumene nemfuza, ikwaphenjelelwa bubudala bomntu, ubuhlanga, ukwakheka komzimba, inqanaba loqeqesho kunye nohlobo lomthambo owenziweyo.

VO2 uvavanyo olukhulu

1. Uvavanyo olungqalileyo

Ukulinganisa i-VO2, uvavanyo lwe-ergospirometry lunokwenziwa, lukwabizwa ngokuba luvavanyo lwamandla emiphungeni okanye uvavanyo lokuzilolonga, olwenziwa kwitreadmill okanye kwibhayisekile yokuzivocavoca, nomntu onxibe imaski ebusweni kunye nee-electrode ezinamathele emzimbeni. Olu vavanyo lilinganisa ubuninzi be-VO2, ukubetha kwentliziyo, ukutshintshiselana ngegesi ngokuphefumla kunye nokuzimisela okujongwa njengokuqina koqeqesho.

Uvavanyo luhlala lucelwa ngugqirha wezifo zentliziyo okanye ugqirha wezemidlalo ukuvavanya iimbaleki, okanye ukuvavanya impilo yabantu abaneengxaki zemiphunga okanye zentliziyo, kwaye kwezinye iimeko, isixa se-lactate egazini siyalinganiswa ekupheleni vavanyo.

Jonga ukuba yeyiphi inqanaba lentliziyo elilungele ukunciphisa umzimba.

2. Uvavanyo olungqalileyo

Elona nani liphezulu le-VO2 linokuqikelelwa ngokungathanga ngqo kuvavanyo lomzimba, njengoko kunjalo kuvavanyo lwe-Cooper oluvavanya amandla e-aerobic, ngohlalutyo lomgama ogqunywe ngumntu ngexesha lemizuzu eli-12, ngelixa uhamba okanye ubaleka ubuninzi bomthamo.

Nje ukuba amaxabiso aqatshelwe, kubalulekile ukubala usebenzisa i-equation, eya kuthi inike elona xabiso liphezulu le-VO2 yomntu.

Fumanisa ukuba lwenziwa njani uvavanyo lwe-Cooper kwaye ubone indlela yokujonga ubuninzi be-VO2.

Ungalonyusa njani elona VO2 liphezulu

Ukunyusa i-VO2 ephezulu kuyonyusa uqeqesho lomzimba kuba luyayiphucula imeko yomzimba, lenze ukuba umzimba ubambe ngcono ioksijini uyisebenzise ngeyona ndlela intle, ukunqanda ukudinwa. Ngokwesiqhelo, kunokwenzeka kuphela ukuphucula i-VO2 max malunga ne-30% kwaye olu phuculo luhambelana ngqo nenani lamafutha omzimba, ubudala kunye nobunzima bemisipha:

• Inani lamafutha: amafutha omzimba amancinci, enkulu i-VO2;
• Ubudala: omncinci umntu, iphakamileyo i-VO2 yabo inokuba;
• Imisipha: ubukhulu besisindo semisipha, ngakumbi amandla e-VO2.

Ukongeza, uqeqesho olomeleleyo ubuncinci i-85% yenqanaba lentliziyo ikwanceda kakhulu ekunyuseni i-VO2 rate, kodwa njengoko olu luqeqesho olunamandla kakhulu, ingacetyiswa nakubani na oqala ukwenza umthambo. Ukuqala umsebenzi owenziwe ngokwasemzimbeni kunye nokunyusa i-VO2, kucetyiswa uqeqesho olukhaphukhaphu, malunga ne-60 ukuya kwi-70% yeVO2, ekufuneka isoloko ikhokelwa ngumqeqeshi wokuzivocavoca. Ukongeza, ukhetho lokuphucula i-VO2 luqeqesho lwexesha, olwenziwe ngamandla aphezulu.