Nutritional supplements to reduce muscle damage and enhance athlete recovery: What is the physiological evidence?

El dolor muscular tardío (DMT) es uno de los indicadores del daño muscular y regularmente está asociado con la realización de una actividad física desacostumbrada. A través de los años se han buscado diversas formas de contrarrestarlo, entre ellas se encuentra el uso los suplementos nutricionales. Objetivo: Determinar la efectividad de los suplementos nutricionales en la prevención y tratamiento del DMT. Método: Se llevó a cabo una revisión sistemática en las bases de datos PubMeb, Scopus, SportDiscus y Web of Science, las palabras utilizadas para la búsqueda fueron delayed onset muscle soreness y exercise induced muscle damage combinadas con prevention y/o treatment. Resultados: Se identificaron 1257 estudios de los cuales 43 cumplieron con los criterios establecidos para ser incluidos en la revisión. Los principales suplementos usados son la leche, los ácidos grasos Omega 3 y la curcumina. Del total de estudios analizados, en el 46 % hubo una disminución del DMT con el uso del suplemento. Conclusión: lo suplementos nutricionales analizados no tienen efectividad en la prevención y tratamiento de DMT.Abstract. Delayed Onset Muscle Soreness (DOMS) is one of the indicators of muscle damage regularly associated with performance in individuals not used to physical activity. Several strategies to counteract DOMS appeared over the years, including the use of nutritional supplements. Objective: to determine the effectiveness of nutritional supplements in the prevention and treatment of DOMS. Method: a systematic review was carried out in the PubMed, Scopus, Sport Discuss, and Web of Science databases. Words used for the search were “delayed onset muscle soreness” and “exercise induced muscle damage” combined with “prevention” and / or “treatment”. Results: we identified 1,257 studies, 43 of which met the criteria established to be included in the review. The main supplements used are milk, omega-3 fatty acids, and curcumin. In 46% of the studies analyzed, a decrease in DOMS was shown after using a supplement. Conclusion: the nutritional supplements analyzed have no effectiveness in the prevention and treatment of DOMS.

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The effect of ionophore A23178 on the α-actinin crosslinks in the z-band of frog skeletal muscle: An EM study

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100142396 ◽

1986 ◽

Vol 44 ◽

pp. 154-155

Author(s):

F.T. Llados ◽

V. Krlho ◽

G.D. Pappas

Keyword(s):

Muscle Damage ◽

Transmitter Release ◽

Skeletal Muscles ◽

Calcium Uptake ◽

Muscle Membrane ◽

Frog Skeletal Muscle ◽

Ach Release ◽

Sustained Action ◽

Calcium Deposits ◽

Intense Stimulation

It Is known that Ca++ enters the muscle fiber at the junctional area during the action of the neurotransmitter, acetylcholine (ACh). Pappas and Rose demonstrated that following Intense stimulation, calcium deposits are found In the postsynaptic muscle membrane, Indicating the existence of calcium uptake In the postsynaptic area following ACh release. In addition to this calcium uptake, when mammal Ian skeletal muscles are exposed to a sustained action of the neurotransmitter, muscle damage develops. These same effects, l.e., Increased transmitter release, calcium uptake and finally muscle damage, can be obtained by Incubating the muscle with lonophore A23178.

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