Table 2.
Intermittent Variable-Intensity Exercise Protocol.
| Phase | Interval No. | Intensity | Duration |
|---|---|---|---|
| Warm-up | “Jog” | 2 min | |
| Treadmill | 1–5 | Jog | 1 min |
| Walk | 30 s | ||
| Jog | 40 s | ||
| Sprint | 20 s | ||
| Jog | 40 s | ||
| Sprint | 20 s | ||
| Jog | 40 s | ||
| Sprint | 20 s | ||
| Walk | 30 s | ||
| 5 min break | |||
| Stationary cycle | 2–10 | Jog | 1 min |
| Walk | 30 s | ||
| Jog | 40 s | ||
| Sprint | 20 s | ||
| Jog | 40 s | ||
| Sprint | 20 s | ||
| Jog | 40 s | ||
| Sprint | 20 s | ||
| Walk | 30 s | ||
| 5 min break | |||
| Elliptical | 11–15 | Jog | 1 min |
| Walk | 30 s | ||
| Jog | 40 s | ||
| Sprint | 20 s | ||
| Jog | 40 s | ||
| Sprint | 20 s | ||
| Jog | 40 s | ||
| Sprint | 20 s | ||
| Walk | 30 s |
Order of machine use was the same within a participant for all 3 trials but varied between subjects.