Table 3.

Mean ± standard deviation of PRE and POST metal values 14 weeks of combined training (PG: n 24; NGG: n 24).

Variables (µg/L)	Group	PRE	POST	p (group)	p (time)	p (group x time)
Hg	PG	0.06 ± 0.1	0.03 ± 0.1	0.651	0.030*	0.651
	NGG	0.05 ± 0.1	0.02 ± 0.1
Al	PG	184.3 ± 150.7	159.5.1 ± 154.8	0.46	0.476	0.907
	NGG	152.2 ± 177.5	135.0 ± 59.0
As	PG	2.9 ± 0.4	2.9 ± 0.2	0.386	0.818	0.181
	NGG	2.7 ± 0.2	3.0 ± 0.0
Cd	PG	0.2 ± 0.8	0.03 ± 0.0	0.391	0.212	0.452
	NGG	0.8 ± 0.0	0.02 ± 0.0
Pb	PG	2.1 ± 1.6	1.1 ± 0.3	0.385	0.001*	0.33
	NGG	1.7 ± 0.8	1.1 ± 0.0
Ni	PG	6.3 ± 1.0	5.3 ± 1.3	0.175	0.44	0.879
	NGG	4.4 ± 2.4	3.0 ± 0.8
Li	PG	0.6 ± 0.3	0.5 ± 0.1	0.492	0.104	0.934
	NGG	0.6 ± 0.3	0.5 ± 0.2

Hg, mercury; Al, aluminum; As, arsenic; Cd, cadmium; Pb, lead; Ni, nickel; Li, lithium; PG, prediabetes group; NGG, normal glucose group. *statistical difference time; p < 0.05 for pre versus post (repeated measures two-way ANOVA.