Table 1. Sprint-interval training program in the present study. Treadmill speed, resting period, sets, and frequency varied according to the rats’ familiarity and fitness level.
| Week |
Familiarization |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
| Age (week) |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
| Treadmill speed (m·min-1) |
10–30 |
30–45 |
45–55 |
55–65 |
55–65 |
60–70 |
65–70 |
70–80 |
75–80 |
75–80 |
| Sprint duration (min) |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Resting period (min) |
2 |
2 |
2 |
2 |
2 |
2 |
5 |
4 |
4 |
3 |
| Sets (N·day-1) |
10 |
10 |
10 |
10 |
10 |
10 |
6 |
6 |
7 |
7 |
| Frequency (days·week-1) |
6 |
6 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
