Tai Chi Exercise Increases SOD Activity and Total Antioxidant Status in Saliva and Is Linked to an Improvement of Periodontal Disease in the Elderly

Table 2

Oxidative stress markers, baseline, and postintervention by group.

	Control; (𝑛=25)		Tai Chi; (𝑛=24)
	Baseline	Six months	Baseline	Six months
TAS (mmol/L)	0.72 ± 0.35	0.62 ± 0.29	0.53 ± 0.33	0.70 ± 0.35*
SOD (UI/L)	2.63 ± 1.8	2.33 ± 1.1	1.62 ± 0.83	2.79 ± 1.6^†
Lipoperoxides (μmol/L)	0.14 ± 0.14	0.08 ± 0.09	0.11 ± 0.07	0.14 ± 0.09

Values are means ± SE. Repeated measures analysis of variance ^∗𝑃<0.01; ^†𝑃<0.001. TAS: total antioxidant status, SOD: superoxide dismutase.