Antioxidant Responses in Hypertensive Postmenopausal Women after Acute Beetroot Juice Ingestion and Aerobic Exercise: Double Blind and Placebo-Controlled Crossover Trial

Table 1

Salivary oxidative stress markers and total protein, at baseline (0), two hours after beetroot juice consume, and immediately before exercise (130), immediately postexercise (170), and 90 postexercise (260).

	0	130	170	260	session	time	sessiontime	ES	95% CI
Total protein (μg/μL)
OFD					0.166	< 0.001	0.353	0.102	0.65; 0.76
Low-NO3^-
High-NO3^-
Catalase (U/μg prot)
OFD					< 0.001	< 0.001	0.412	0.092	10.71; 14.80
Low-NO3^-
High-NO3^-
GSH (nmol/mg prot)
OFD					0.040	0.004	0.217	0.091	29.65; 36.47
Low-NO3^-	3
High-NO3^-
FRAP (nmol Trolox)
OFD					0.098	< 0.001	0.680	0.055	43.28; 54.54
Low-NO3^-
High-NO3^-

of salivary markers. ES: effect size (partial eta squared); CI: confidence interval; GSH: reduced glutathione; FRAP: ferric reducing ability of plasma; OFD: noncaloric orange flavored drink without nitrate; low-NO₃^-: beetroot juice with low nitrate; high-NO₃: beetroot juice with high nitrate; 0: salivary sample at rest; 130: salivary sample before aerobic exercise; 170: salivary sample after aerobic exercise; 260: salivary sample 90 after aerobic exercise.