TITLE:
Vitamin C Supplementation Reduces Exercise-Induced Oxidative Stress and Increases Peak Muscular Force
AUTHORS:
Levi W. Evans, Fan Zhang, Stanley T. Omaye
KEYWORDS:
Untrained Persons, Free Salivary Malondialdehyde, Isokinetic Exercise
JOURNAL NAME:
Food and Nutrition Sciences,
Vol.8 No.8,
August
14,
2017
ABSTRACT: Vitamin C is a popular supplement in exercise and sport for its chemical properties i.e.v antioxidant capabilities. However, no clear role has been established for vitamin C supplementation (VCS) within these areas despite nearly a century’s worth of ongoing research. This study examined peak muscular pushing force (PMF) before and after a VCS intervention, 250 mg every 12 hrs for 28 days, in nine participants whom were naive to VCS and resistance exercise (RE). A dynamometer was used to perform two RE bouts, pre- and post-intervention, that quantified PMF during a state of exercise-induced oxidative stress (EI-OS). Saliva was collected for EIOS analysis from each participant before and after each RE bout; salivary vitamin C (VC) and free salivary malondialdehyde (MDA) were the examined biomarkers. PMF increased significantly post-intervention (405.48 ± 92.75 m·kg·s-2) from baseline (368.31 ± 76.36 m·kg·s-2, p