Avtor/Urednik		Blažinovič, I; Gošnak-Dahmane, R
Naslov		Histokemične značilnosti skeletnih mišičnih vlaken v spremenjenih razmerah
Prevedeni naslov		Histochemical characteristics of skeletal muscle fibers under changed conditions
Tip		članek
Vir		Fizioterapija
Vol. in št.		Letnik 7, št. 2
Leto izdaje		1999
Obseg		str. 17-9
Jezik		slo
Abstrakt		Changed ratio in the muscle and in the muscle fibers which occur for various reasons are reflected on the histochemical pattent of the muscle or of the structure elements of the muscle fiber. Changes caused by denervation show the reduction of slow myosin, because the slow myosin develops only in the presence of the nerve. After long time denervation the muscle contains only fast myosin. Immobilisation of muscle causes atrophic changes and leeds to transformarion, mostly of fibers type IIA into IIB. It is proved that in subjects with mostly unactive way of life muscle fibres type IB prevail. Histochemical structure of the muscle of the sportsmen prove, that the prevailance of the definite muscle fibre type is caused by the physical activity. Endurance training causes transformation of the muscle fibre type from IIB to IIA and from IIA to type I.
Izvleček		Spremenjene razmere v mišici oziroma v mišičnem vlaknu, ki nastanejo iz različnih vzrokov, se odražajo na histokemičnem vzorcu mišice oziroma na strukturnih elementih mišičnega vlakna. Spremembe, ki nastopajo v denervirani mišici, kažejo, da se zmanjša množina počasnega miozina, ker ta nastaja le ob prisotnosti živca. Po dalj časa trajajoči denervaciji vsebuje mišica le miozin hitrega tipa. Po imobilizaciji mišice prihaja do atrofičnih sprememb in sprememe mišičnih vlaken, predvsem vlaken tipa IIA v tip
Deskriptorji		MUSCLE, SKELETAL MUSCLE DENERVATION IMMOBILIZATION PHYSICAL EDUCATION AND TRAINING EXERCISE MUSCLE CONTRACTION HISTOCYTOCHEMISTRY MUSCLE FIBERS, FAST-TWITCH MUSCLE FIBERS, SLOW-TWITCH