Chemical Physiology of Muscle Contraction

Pavel, Liliana Lacramioara; Tiutiuca, Carmen; Berbece, Sorin Ioan; Condratovici, Alina Plesea; Ioanid, Nicoleta

Liliana Lacramioara Pavel, Carmen Tiutiuca, Sorin Ioan Berbece, Alina Plesea Condratovici, Nicoleta Ioanid

Chemical Physiology of Muscle Contraction

Abstract:

The mechanical response of an isolated muscle to an excitant is not accompanied by any oxygen consumption increase; the additional amount of oxygen is not consumed as long as contraction and relaxation have not occurred. Thus, there are two contraction phases, an anaerobic (anoxidative) phase and an aerobic (oxidative) or recovery phase, during which the muscle resumes its previous stage. When the muscle is repeatedly excited in a nitrogen atmosphere, it strongly contracts at the beginning, but it gets quickly exhausted, since between contractions it cannot get the necessary oxygen for its recovery. Lactic acid gathers in the muscle, which becomes stiff. If it gets oxygen at the beginning of its fatigue, the lactic acid disappears and the muscle recovers its initial contraction strength. The lactic acid concentration at which complete skeletal muscle fatigue sets in (i.e. the lactic acid peak) ranges between 0.3 and 06%. In order to release the energy it needs for its contraction, the muscle does not depend on immediate oxidative processes. It continues to contract for a certain amount of time even when it is completely deprived of oxygen.

Keywords:
energy metabolism; aerobic; anaerobic; contraction; chemical reaction; muscle groups

Issue: 2017, Volume 68, Issue 5

Pages: 1095-1097

Publication date: 2017/6/15

https://doi.org/10.37358/RC.17.5.5619

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
PAVEL, L.L., TIUTIUCA, C., BERBECE, S.I., CONDRATOVICI, A.P., IOANID, N., Chemical Physiology of Muscle Contraction, Rev. Chim., 68(5), 2017, 1095-1097.

Vancouver
Pavel LL, Tiutiuca C, Berbece SI, Condratovici AP, Ioanid N. Chemical Physiology of Muscle Contraction. Rev. Chim.[internet]. 2017 May;68(5):1095-1097. Available from: https://doi.org/10.37358/RC.17.5.5619

APA 6th edition
Pavel, L.L., Tiutiuca, C., Berbece, S.I., Condratovici, A.P. & Ioanid, N. (2017). Chemical Physiology of Muscle Contraction. Revista de Chimie, 68(5), 1095-1097. https://doi.org/10.37358/RC.17.5.5619

Harvard
Pavel, L.L., Tiutiuca, C., Berbece, S.I., Condratovici, A.P., Ioanid, N. (2017). 'Chemical Physiology of Muscle Contraction', Revista de Chimie, 68(5), pp. 1095-1097. https://doi.org/10.37358/RC.17.5.5619

IEEE
L.L. Pavel, C. Tiutiuca, S.I. Berbece, A.P. Condratovici, N. Ioanid, "Chemical Physiology of Muscle Contraction". Revista de Chimie, vol. 68, no. 5, pp. 1095-1097, 2017. [online]. https://doi.org/10.37358/RC.17.5.5619

Text
Liliana Lacramioara Pavel, Carmen Tiutiuca, Sorin Ioan Berbece, Alina Plesea Condratovici, Nicoleta Ioanid,
Chemical Physiology of Muscle Contraction,
Revista de Chimie,
Volume 68, Issue 5,
2017,
Pages 1095-1097,
ISSN 2668-8212,
https://doi.org/10.37358/RC.17.5.5619.
(https://revistadechimie.ro/Articles.asp?ID=5619)
Keywords: energy metabolism; aerobic; anaerobic; contraction; chemical reaction; muscle groups

RIS
TY - JOUR
T1 - Chemical Physiology of Muscle Contraction
A1 - Pavel, Liliana Lacramioara
A2 - Tiutiuca, Carmen
A3 - Berbece, Sorin Ioan
A4 - Condratovici, Alina Plesea
A5 - Ioanid, Nicoleta
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2017
VL - 68
IS - 5
SP - 1095
EP - 1097
UR - https://doi.org/10.37358/RC.17.5.5619
KW - energy metabolism
KW - aerobic
KW - anaerobic
KW - contraction
KW - chemical reaction
KW - muscle groups
ER -

BibTex
@article{RevCh2017P1095,
author = {Pavel Liliana Lacramioara and Tiutiuca Carmen and Berbece Sorin Ioan and Condratovici Alina Plesea and Ioanid Nicoleta},
title = {Chemical Physiology of Muscle Contraction},
journal = {Revista de Chimie},
volume = {68},
number = {5},
pages = {1095-1097},
year = {2017},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.17.5.5619},
url = {https://revistadechimie.ro/Articles.asp?ID=5619}
}

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