Table 5.

% VO_2max in different treadmill speeds and grades for 16-month-old untrained male Wistar rats.

Grade (°)	Speed (m min−1)
	0	12	15	18	21	24	27
0
VO2 (mL kg−1 min−1)	19.3 ± 3.4	31.5 ± 4.4	40.9 ± 4.5	47.7 ± 5.5	51.3 ± 5.9	54.1 ± 4.8	54.7 ± 3.3
%VO2max	35.04 ± 6.68	57.04 ± 6.89	74.48 ± 9.51	86.62 ± 11.40	92.95 ± 10.07	98.31 ± 2.21	100
5
VO2 (mL kg−1 min−1)	19.0 ± 2.5	32.4 ± 3.5	41.1 ± 5.7	47.4 ± 5.3	51.7 ± 4.8	52.9 ± 5.3
%VO2max	35.23 ± 8.99	61.77 ± 6.35	78.16 ± 9.13	90.28 ± 7.73	98.72 ± 2.27	100
10
VO2 (mL kg−1 min−1)	17.8 ± 2.7	31.4 ± 3.2	39.8 ± 3.6	48.2 ± 5.1	52.1 ± 5.4
%VO2max	34.53 ± 7.02	60.42 ± 5.81	76.76 ± 7.39	92.46 ± 2.16	100

All values are presented as mean ± SD, n = 10 for each group. %VO_2max is the ratio of VO₂ to VO_2max.