Kufuneka Imishini Ekhethekile
I-isokinetic muscle contraction iyenzeka lapho izivumelwano zomsipha futhi zifinyelela ngesilinganiso esisheshayo nesingaguquguquki sejubane. Akuyona inhlobo evamile kakhulu yokuhlukumeza imisipha futhi idinga imishini ekhethekile ukukhiqiza eyodwa. Kodwa lolu hlobo lokuqeqesha lungenye yezindlela ezisheshayo zokwandisa amandla emisipha nokukhuthazela okukhulu kwemisipha .
Izinsiza ze-Isokinetic
Ezinye izinhlobo zezinsipho zomzimba zingakhiwa cishe noma kuphi, njengokuzivocavoca noma ngokuphonsela odongeni, futhi yiyo indlela osebenzisa ngayo imisipha yakho ngaso sonke isikhathi.
Kodwa i-isokinetic muscle contraction idinga imishini ekhethekile yokuqeqesha eyandisa umthwalo njengoba ithola ukuthi ukukhwa kwemisipha kuyasheshisa.
I-dynamometer ye-isokinetic iyadingeka ukuze kuqhutshwe izinhlangothi ze-isokinetic. Lesi sici semishini sisetshenziselwa ukukala isivinini se-isokinetic muscle contractions futhi siqiniseke ukuthi ijubane lezo zinqamuzana zihlala njalo kulo lonke uhla lokuhamba.
Ukuzivocavoca okuningi kungenziwa isokinetic uma imishini iklanyelwe leyo njongo. Isibonelo, umshini we-latldown noma umjikelezo omile ungenziwa isokinetic.
Njengoba kuyimpahla ebiza kakhulu, i-isokinetic dynamometer ayiyona into evamile emphakathini, izikole, amanyuvesi, noma ezinye izikhungo zokufunda. Imishini enjalo ingatholwa ezindaweni zokuvuselela kanye nezindawo zokuqeqesha ezemidlalo ezikhethekile. I-franchises yezemidlalo ejwayelekile ibuye ibuye ithengise abadlali bayo imishini enjalo.
Izinzuzo
Inzuzo yokuqeqeshwa kwe-isokinetic ukuthi imisipha ehlosiwe ithola amandla ngokulinganayo futhi ngokuqhubekayo konke ngokusebenzisa lonke uhambo lokunyakaza nokuzivocavoca. Ukuqeqeshwa okunjalo kungenye yezindlela ezisheshayo zokwandisa amandla omzimba .
Ukuqhathaniswa Okuvamile Kwama-Muscle
I-isokinetic muscle contraction wuhlobo oluthile lwe-contraction muscle.
Izisindo ze-muscle nazo ziyaziwa njengezinzwa ze-muscle fiber. Zenzeka uma i-fiber muscle noma iqembu lamafayili liboniswa ubuchopho ngezinzwa ukuze kusebenze futhi kwandiswe ukushayisana ngaphakathi kwe-muscle. Njengoba zidinga imishini ethile, ukuchithwa kwe-isokinetic akuyona uhlobo oluvame kakhulu lokuhlukumeza imisipha uma kuziwa ekuqeqesheni isisindo.
Ezinye izinhlobo ezijwayelekile zezinsipho zomzimba zihlanganisa:
- Ukuncintisana Kwama-Muscle : Ukuvuthwa kwanda emisipha ngesikhathi sezingqinamba ezithintekayo, futhi amandla omzimba akhiwa phakathi nalolu hlobo lokuqhaqhazela. Lesi yisigaba sangempela sokuphakamisa umsebenzi. Isibonelo, ngesikhathi se-bicep curl, lokhu kuzoba lapho ingalo ebambe isisindo iphakanyiswa futhi ifakwe endaweni yehlombe.
- Ukuhlukaniswa kweMisipha ye-Eccentric : Ekuqeqesheni isisindo, lesi yisigaba lapho imisipha ibuyela khona ekuqaleni kokusebenza. Isibonelo, ngesikhathi se-bicep curl, lokhu kuzoba lapho ingalo ebambe isisindo ibuyiselwa endaweni yesikhumba.
- I-Isometric Ukuhlukana Kwemisipha: Izenzo ze-Isometric yizo ezingabangeli ukunyakaza kwamajoyina. Isibonelo se-isometric contraction contraction sivele siphakamise phezulu odongeni.