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. 2016 May;28(5):1487-92.
doi: 10.1589/jpts.28.1487. Epub 2016 May 31.

Effect of two complex training protocols of back squats in blood indicators of muscular damage in military athletes

Álvaro Huerta Ojeda  1 , Luis Chirosa Ríos  2 , Rafael Guisado Barrilao  3 , Ignacio Chirosa Ríos  2 , Pablo Cáceres Serrano  4
Affiliations

Effect of two complex training protocols of back squats in blood indicators of muscular damage in military athletes

Álvaro Huerta Ojeda et al. J Phys Ther Sci. 2016 May.

Abstract

[Purpose] The aim of this study was to determine the variations in the blood muscular damage indicators post application of two complex training programs for back squats. [Subjects and Methods] Seven military athletes were the subjects of this study. The study had a quasi-experimental cross-over intra-subject design. Two complex training protocols were applied, and the variables to be measured were cortisol, metabolic creatine kinase, and total creatine kinase. For the statistical analysis, Student's t-test was used. [Results] Twenty-four hours post effort, a significant decrease in cortisol level was shown for both protocols; however, the metabolic creatine kinase and total creatine kinase levels showed a significant increase. [Conclusion] Both protocols lowered the indicator of main muscular damage in the blood supply (cortisol). This proved that the work weight did not generate significant muscular damage in the 24-hour post-exercise period.

Keywords: Complex training; Muscular damage indicators; Post-activation potentiation.

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Figures

Fig. 1.
Fig. 1.
Experimental design of complex training for back squats RM: repetition maximum; [La]: concentrations of lactate
Fig. 2.
Fig. 2.
Sequence of 30-m sprint in the experimental protocol R1: first 30-m sprint; R2: second 30-m sprint; R3: third 30-m sprint; formula image, photocell.
Fig. 3
Fig. 3
See this image and copyright information in PMC

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