间歇训练计算器公式

## How to Plan Interval Training

Interval training alternates high-intensity work periods with rest or low-intensity recovery.

### Key Variables

- **Work Duration**: Time spent at high intensity
- **Rest Duration**: Recovery between intervals
- **Work:Rest Ratio**: Determines the energy system targeted

### Work:Rest Guidelines

- **1:3-1:5** for power/speed (sprints, 10-30 sec)
- **1:1-1:2** for VO2max (60-120 sec intervals)
- **2:1-3:1** for lactate threshold (longer tempo intervals)

计算示例

8 x 60-second intervals with 60-second rest, 10 min warmup, 5 min cooldown.

  1. Total work = 8 * 60 = 480 seconds = 8.0 min
  2. Total rest = 7 * 60 = 420 seconds = 7.0 min (7 rest periods between 8 intervals)
  3. Interval block = (480 + 420) / 60 = 15.0 min
  4. Total session = 10 + 15.0 + 5 = 30.0 min
  5. Work:Rest ratio = 60/60 = 1.00