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Multistage 20-m Shuttle Run (Beep Test)

Evidence-grounded — sourced from Fysiqal's fitness knowledge graph· 2 min read
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In one line

Run back and forth over 20 m in time with audio beeps that speed up each minute; the level you reach before falling behind maps to estimated VO2max — the standard team-sport aerobic field test.

Detail

The 20-m multistage shuttle run (Léger & Lambert, 1982; also "beep test," "bleep test," "MSFT," and the PACER in youth fitness batteries) is an incremental, maximal field test. Participants run between two lines 20 m apart, turning to meet a recorded beep. Speed starts at ~8.5 km/h and increases ~0.5 km/h each level (≈1 min). The test ends when the participant fails to reach the line in time on two consecutive shuttles. The final level and shuttle are the score and convert to estimated VO2max.

Estimation: original Léger regression and several alternatives exist (Ramsbottom et al. 1988 published a widely used level→VO2max table). A simplified Flouris et al. (2005) equation: VO2max ≈ 3.46 × (level + shuttle/(level × 0.4325 + 7.0048)) + 12.2. (multiple validated equations exist; results differ by ~several mL/kg/min)

Correlation with lab VO2max is high in fit young adults (r ≈ 0.92). It is maximal and involves repeated decelerations/turns, so screen first, use a non-slip surface, and it is well-suited to groups and field-sport athletes; pacing is dictated by the audio, removing pacing skill as a confounder.

Key facts

  • 20 m apart; start ~8.5 km/h, +0.5 km/h per ~1-min level; paced by beeps.
  • Score = final level + shuttle reached; ends after two consecutive missed lines.
  • Multiple VO2max equations (Léger, Ramsbottom table, Flouris); r ≈ 0.92 with lab VO2max in fit youth/adults.
  • Maximal effort with repeated turns — screen first; use a grippy surface.

Connections

  • vo2max-overview — incremental maximal field estimator.
  • field-run-tests — alternative maximal run tests.
  • shuttle-run — different (short-sprint) shuttle drill, not aerobic.
  • running — modality counterpart.
SourceCurrent guideline bodies
Léger & Lambert, "A maximal multistage 20-m shuttle run test to predict VO2max," Eur J Appl Physiol 49:1–12 (1982); Ramsbottom et al. (1988); Flouris et al. (2005).
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Educational content only — not medical advice. Always consult a qualified professional for individualized guidance, especially around injury, pregnancy, or medical conditions.

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Atlas Connections

Cardiorespiratory Fitness Norms (VO2max)
Reference tables (Cooper Institute / ACSM) place a person's VO2max into percentile/category by age and sex — the basis for calling a score poor, average, or excellent and for tracking change.
1.5-Mile Run & Cooper 12-Minute Run TestsClosely related
Two maximal-effort distance-running field tests — run 1.5 miles as fast as possible, or cover as much ground as possible in 12 minutes — converted to estimated VO2max by regression equations.
Pre-Participation Health Screening (Overview)
Before any testing or new exercise program, screen each person to find the small minority for whom exercise carries elevated cardiac risk and who need medical clearance first — without creating needless barriers for everyone else.
Estimating VO2max — Methods OverviewClosely related
When direct gas analysis isn't available, VO2max is estimated from submaximal HR responses, maximal field-test performance, or step-test recovery — trading accuracy for practicality.
Running / Jogging (Cardio Modality)
A high-impact, high-intensity modality that easily reaches vigorous effort and builds endurance efficiently — but carries the most overuse-injury risk, so mileage must be progressed carefully.
Shuttle Run
Repeated back-and-forth sprints between two marks with a turn at each end — trains acceleration, deceleration, turning, and (with volume) anaerobic conditioning.