Harvard Step Test
A simple test that assesses your physical fitness and aerobic capacity from how quickly your heart rate recovers after stepping on a platform.
About the Harvard step test
Developed in the 1940s at Harvard University, this submaximal test only requires a raised step or platform and a stopwatch. It assesses overall fitness and lets you track improvement over time.
How the test works
You step up and down a platform at a steady rhythm for a set duration (usually 5 minutes). Heart rate is then measured to see how the heart responds to exercise, and how quickly it recovers after the effort. The faster your heart rate returns to its resting state, the better your cardiovascular condition.
Calculator
Calculate your fitness index
Formula: (exercise duration in seconds × 100) / (sum of heart rates at 1, 2 and 3 minutes of recovery).
There is no universally standardised rating scale for this simplified version of the formula (several variants of the test circulate with different divisors). Instead, compare your own index over time: if it rises from one session to the next, your heart-rate recovery is improving.
Equipment needed
- A step or raised platform 45 cm high
- A stopwatch to time the exercise and the recovery periods
- A heart rate monitor, or the ability to take your pulse manually
- Comfortable clothing suited to exercise
Protocol
How the test unfolds
- Starting positionStand in front of the 45 cm step or platform.
- Steady steppingStart the stopwatch and step up and down at a constant rate of 30 steps per minute (one every 2 seconds).
- Test durationContinue for 5 minutes, or until you can no longer keep the required pace.
- Recovery measurementSit down immediately and measure your pulse at 1, 2 and 3 minutes after stopping.
Recommended gear
To run the test in good conditions
- Aerobic step platform View on Amazon →
- Heart rate monitor View on Amazon →
- Sports stopwatch View on Amazon →
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Frequently asked questions
FAQ
What does "submaximal" mean for this test?
Unlike a maximal stress test, the Harvard step test does not require pushing to total exhaustion: the information comes mostly from how quickly your heart rate recovers after the effort.
What if I cannot last the full 5 minutes?
Note the time you actually sustained in seconds and use it in the formula instead of 300 seconds. The calculator above lets you adjust this duration.
What step height should you use?
The original protocol specifies a step or platform 45 cm high, at a cadence of 30 steps per minute.
Does the Harvard step test give you a VO2max?
No: it produces a fitness index based on how quickly your heart rate recovers after the effort, not a direct VO2max estimate like the Cooper test.