Exercise Training under Exposure to Low Levels of Fine Particulate Matter: Effects on Heart Oxidative Stress and Extra-to-Intracellular HSP70 Ratio

Table 4

Fasting glycaemia of mice exposed to fine particulate matter (PM_2.5) submitted to 12 weeks of exercise training.

	CON	MIT	HIT	PM2.5	MIT + PM2.5	HIT + PM2.5	ANOVA ( value)
Before	120.3 ± 6.4	123.6 ± 23.0	127.2 ± 26.2	116.0 ± 22.4	104.8 ± 37.9	119.2 ± 27.4	0.789
4th week	112.5 ± 19.5	96.2 ± 23.9	85.6 ± 13.7^†	104.8 ± 23.0	104.0 ± 14.8	99.2 ± 16.6	0.328
8th week	102.5 ± 14.7	93.4 ± 14.7	96.0 ± 19.6	94.8 ± 15.2	96.2 ± 15.1	109.4 ± 22.0	0.652
12th week	91.5 ± 21.3	74.0 ± 10.9^§	80.7 ± 17.0^†	80.1 ± 8.8	77.2 ± 15.6	81.6 ± 4.0	0.458

Fasting glycaemia (mg·dL⁻¹) expressed as mean ± standard deviation. CON: control group, received 10 μL saline daily, maintained sedentary. MIT: moderate intensity training group, received 10 μL saline daily. HIT: high intensity training group, received 10 μL saline daily. PM_2.5: exposure group, received 5 μg of PM_2.5 daily, maintained sedentary. MIT + PM_2.5: moderate intensity training group, received 5 μg of PM_2.5 daily. HIT + PM_2.5: high intensity training group, received 5 μg of PM_2.5 daily (n = 5-6 per group). Data analysed by two-way ANOVA followed by Tukey’s multiple comparison test. There was an effect of time () and no effect of treatment () or interaction between time and treatment (). The time effects are indicated as , ^†, and ^§ versus initial body weight (“before” data) in each respective group.