The Badminton Endurance Test You Can Run on Your Own Court

Aug 21, 2026

By Badminton House

Last reviewed: August 2026 · Written by the Badminton House player-led team

Quick answer: badminton endurance test

AIR-BT is a 16-level badminton-specific endurance test. Cadence starts at 18 beats per minute and rises by one beat each level to 33. Each sequence visits front-right, back-right, back-left and front-left twice. Take 10 seconds of active recovery between sequences, stop on the second missed centre return within one sequence, and record total time plus the completed level or sublevel.

Protocol

Use AIR-BT exactly: fixed route, published audio, level sequence and active recovery.

Score

Record time plus level or sublevel—not “stage plus reps.”

Limit

This maximal test is for experienced players who already know the footwork; it has no universal club-player norms.

AIR-BT turns repeated corner movement into a progressively harder audio-paced protocol. It gives an experienced player a repeatable on-court conditioning score without pretending to be a laboratory test, a medical assessment or a universal ranking table.

Important: this test reaches exhaustion. Do not run it alone, on a wet or crowded court, while injured, or while still learning the required corner footwork.

What does AIR-BT measure?

AIR-BT measures how long a player can sustain a fixed badminton-specific route while its cadence rises. The task combines intermittent endurance, braking, direction changes, centre recovery and familiar stroke-like movement rather than steady running alone.

The original AIR-BT validation study involved 36 Spanish badminton players. Performance correlated with treadmill VO2max at r = .87 and with Yo-Yo IR1 distance at r = .86. Test–retest reliability for time was ICC = .875.

Those results support AIR-BT as a useful badminton-specific field measure in the studied population. They do not make it an exact VO2max test, a diagnosis or a club-level classifier. The participants had substantial badminton experience, and the route requires appropriate footwork to be reproducible.

It can describe	It cannot decide
How long you sustain the fixed route and cadence.	Whether you are ready for a particular club session.
Whether your own standardized result changes after a training block.	A clinical diagnosis, exact VO2max or injury risk.
Your performance on repeated corner movement under this fixed protocol.	How you react to an unpredictable opponent or rally.

How do you set up the court and audio?

Use one singles court, the four corner lines and centre rectangle shown in the published AIR-BT protocol, a phone or audio player, a stopwatch and one observer. Keep every mark in the same place for every retest because changing the route changes the test.

Mark four targets: front-right, back-right, back-left and front-left.
Keep tape safe: use a visible mark that will not create a trip hazard or damage the surface.
Use the protocol audio: the author-posted AIR-BT recording supplies the cadence and recovery structure.
Place the phone outside the route: it should be loud enough to hear without headphones blocking awareness.
Use an observer: that person watches centre returns, target crossings, symptoms and scoring while the player moves.

The player begins from centre, crosses the target with the dominant foot and simulates a badminton stroke at each corner. After every corner, both feet must enter the centre rectangle before the next departure.

Before pressing play

Check that the surface is dry and clear of loose shuttles or bags.
Confirm the player knows the four-corner sequence without prompting.
Complete a progressive warm-up and one submaximal rehearsal.
Agree on symptom-stop signals and observer responsibilities.

Do not recreate the protocol with an unverified metronome. Small cadence or recovery changes repeated through 16 levels can materially change the result.

What is the exact 16-level AIR-BT protocol?

AIR-BT starts at 18 beats per minute, adds one beat per minute at every new level and reaches 33 beats per minute at level 16. Each sequence contains eight corner actions, while the number of sequences changes as the test progresses.

Levels	Cadence	Sequences per level	Sublevel notation
1–2	18–19 beats/min	1 each	Whole levels 1 and 2
3–7	20–24 beats/min	3 each	3.1–3.3 through 7.1–7.3
8–12	25–29 beats/min	4 each	8.1–8.4 through 12.1–12.4
13–16	30–33 beats/min	6 each	13.1–13.6 through 16.1–16.6

Every sequence follows the same clockwise route twice:

Centre → front-right → centre → back-right → centre → back-left → centre → front-left → centre, then repeat once

After each sequence, take the protocol’s 10-second active recovery. Do not add rest because a level feels difficult or remove it to make a harder test. The cadence and recovery are part of AIR-BT’s definition.

Failure rule: stop on the second failure within one sequence to reach the centre position in time with the audio tone. One missed centre return does not automatically end the test; the second failure within that sequence does.

How do you score and retest AIR-BT?

Record two linked outcomes: total elapsed time and the final completed level or sublevel. Preserve both rather than reducing the result to an invented stage-and-repetition score.

Score field	What to record	Example
Total time	Stopwatch time from level 1 until the test ends.	Use your measured time
Completed level	Whole level for 1–2 or exact completed sublevel thereafter.	8.3 completed
Failure note	The sequence and reason the second failure occurred.	Second centre-return failure during 8.4

If the second failure occurs during 8.4 after 8.3 was completed, record 8.3 and note the failure during 8.4. Do not convert that into “8 plus three reps.”

The study reported typical error coefficients of variation of 11.4% for time and 9.2% for level. A small week-to-week difference may reflect measurement noise, route familiarity, fatigue or court conditions rather than a real fitness change.

Retest after a meaningful training block, not every week. Keep the court, marks, audio, shoes, warm-up, observer rules, time of day where practical and recovery from the previous session as consistent as possible. Complete a familiarisation session before treating a result as baseline.

Do not mix protocols. B-ENDURANCE uses randomized corner instructions and sensors, while a 2024 pilot study used a different three-stage test. Their timing and scores do not belong in AIR-BT.

What safety rules apply to a maximal court test?

Use a dry, clear court, an observer, a progressive warm-up and a pre-agreed symptom-stop rule. The ACSM preparticipation screening statement supports seeking clinical guidance when health status or symptoms make maximal exercise uncertain. Do not treat completion of a level as evidence that you are medically cleared to train or compete.

Screen the session: do not test through current chest pain, unexplained faintness, acute illness, unusual shortness of breath or a new injury.
Stop immediately for symptoms: end the test for chest pressure, faintness, severe breathlessness beyond expected exertion, confusion, sudden severe pain, loss of coordination or any symptom that feels unsafe.
Stop for movement breakdown: end the test if the player can no longer move safely, repeatedly slips or loses the known route.
Do not test alone: an observer should be able to stop the audio, call for help and keep the route clear.
Use experienced players only: beginners should learn the route at submaximal speed before attempting an exhaustion protocol.

Referral boundary: if you have known cardiovascular, respiratory, metabolic or musculoskeletal conditions, are returning from injury, or are unsure whether maximal exercise is appropriate, ask a qualified clinician before testing.

For a non-fitness self-assessment of rally flow, recovery habits, communication and doubles spacing, use the badminton intermediate club-readiness checklist. It answers a different question.

Run AIR-BT only when the route, audio, observer and safety conditions are controlled. Then compare the next result with your own previous standardized result, not a borrowed score from another player.