Step Test (Harvard Step Test): protocol, physical efficiency index, and tables

The Harvard Step Test is one of the oldest endurance tests (1943), and although more sophisticated alternatives exist today, it remains useful because all you need is a bench/step and a stopwatch. Its strength lies in the fact that it doesn't measure effort directly, but rather the recovery speed of heart rate after a standardized submaximal effort.

What does this test measure?

It assesses cardiovascular capacity through heart rate recovery after 5 minutes of stepping up and down at a constant pace. The faster the heart rate recovers, the better the person's cardiovascular efficiency.

Equipment needed

• A bench or step 50 cm high (standard for adult men; shorter heights of 40-45 cm are used for women or adolescents in adapted versions)
• A metronome or music set to 120 bpm (to set the up-down rhythm)
• A stopwatch
• A heart rate monitor or watch for manual pulse-taking

Step-by-step protocol

1. The person steps up and down the bench at a rate of 30 cycles per minute (up-up-down-down = 4 movements, set by the metronome at 120 bpm) for 5 minutes
2. If the person can't keep up the pace and falls noticeably behind, the test is stopped and the elapsed time is recorded
3. At the end, the person sits down and their pulse is taken at three points in time:

- Between 1' and 1'30" after finishing (P1) - Between 2' and 2'30" (P2) - Between 3' and 3'30" (P3)

1. Calculate the Physical Efficiency Index (PEI):

PEI = (exercise duration in seconds × 100) / (2 × (P1 + P2 + P3))

Common mistakes

• Not maintaining a constant pace (120 bpm) throughout the test
• Taking the pulse outside the established time windows
• Using a step height inappropriate for the person's height or fitness level

How to interpret the result

PEI	Rating
< 55	Poor
55-64	Low
65-79	Average
80-89	Good
≥ 90	Excellent

Simplified versions exist that only take the pulse once (P1) and use a different formula, but the version with 3 readings is the most standardized and reliable.

Related tests

The step test works well as a first quick filter before moving on to more demanding tests:

• 6-minute walk test (6MWT) — a low-impact alternative, especially useful for people with mobility limitations
• Rockport test — the next step up in difficulty, requiring a brisk 1-mile walk

Track results with Movalytics

The Harvard Step Test is quick but involves several calculations (three pulse readings, the PEI formula) — exactly the kind of task where manual errors creep in. With Movalytics you record the exercise duration and the three recovery heart rates, and the app automatically calculates the PEI and saves it to the client's history.

Frequently asked questions

Do I need a special step, or will any bench work? Any stable surface of the appropriate height (50 cm for adults in the classic version) works fine, as long as it's safe and non-slip. Is it suitable for older adults? With standard heights, it can be demanding for older or untrained people. Modified versions with lower steps and shorter durations (3 minutes) are more appropriate in those cases. Why is the pulse taken three times instead of just once at the end? Because what the test really measures is recovery speed, not the immediate post-exercise heart rate. Three readings give a fuller picture of how heart rate drops in the first few minutes of recovery.