Resistance exercise loading pattern and antioxidant capacity of saliva

Abstract

The purpose of this study was to compare changes of antioxidant status after two different resistance exercise loading patterns (pyramid and inverse pyramid). Alteration in biological activity of superoxide dismutase (SOD), radical scavenging activity on 2, 2-diphenyl-2-picrylhydrazyl hydrate (DPPH) and concentration of uric acid (UA) in human saliva was investigated. In practice, 25 experienced trained male participated in the study. During 2 test days, subjects performed resistance exercise protocols with pyramid and reverse pyramid loading patterns. Their un-stimulated saliva samples were obtained pre exercise and 5 minute post exercise. The results showed that after exercise, SOD activity was significantly higher in both PLP and RPLP when compared to their values at rest. However, the SOD values for the RPLP were significantly higher than for the PLP (p<0.05). Uric acid values increased significantly in the two resistance exercise systems (PLP, RPLP) when comparing to the resting values (p<0.05). In addition, there was no significant difference between corresponding UA values of the two systems (p> 0.05). In the case of radical scavenging activity (%DPPH), both PLP and RPLP showed significant increases 5 minutes after exercise sessions compared to pre-exercise (p<0.05). In conclusion, inverse pyramid loading pattern proposed in the current study promoted higher oxidative stress biomarker (DPPH, SOD and UA) and antioxidant modulations compared with resistance traditional interval training.

Key words:

resistance exercise, antioxidants, salivary biomarker

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