Author/Editor		Potočnik, Nejka
Title		Ali mišice za svoje delo potrebujejo kisik
Translated title		Do the muscles need oxygen to exercise
Type		članek
Source		In: Potočnik MM, editor. Gradivo 19. strokovnega seminarja Respiracijska in kardiovaskularna fizioterapija; 2000 jun; Ljubljana. Ljubljana: Društvo fizioterapevtov Slovenije, Sekcija za respiratorno in kardiovaskularno fizioterapijo,
Publication year		2000
Volume		str. 3-10
Language		slo
Abstract		Energy for muscular contraction is derived when adenosine triphosphat, ATP, is dephosphorilated. There is a small amount of ATP present in the muscle. For muscle contraction to continue, ATP could be supplied by three different chemical reactions depending on the intensity of the contraction and its duration. Two of this reactions, dephosphorilation of creatine phosphate and anaerobic breakdown of glucose, do not require oxygen and are only able to provide relatively small amounts of ATP. The third reaction, aerobic breakdown of glucose, requires oxygen and provides abundant ATP. If energy for muscular contraction is supplied by anaerobic pathway, one should think, no oxygen is needed for such an activity. It is true, but after the activity is finished, the oxygen demand of the muscle tissue is grater as normally. The excessive oxygen is needed to restitute the muscle tissue, to restore the degraded ATP and CP, to remove the lactate produced and to load oxygen back to muscular myoglobin.
Descriptors		MUSCLE CONTRACTION ENERGY METABOLISM OXYGEN CONSUMPTION EXERTION