Sunday, 23 Jun 2024

Ruffier Squat Test

The Ruffier Squat Test is a cardiovascular endurance test that measures your heart rate before and after performing 30 squats in 45 seconds. This test was originally developed by James-Edward Ruffier in the 1950s and later modified by J. Dickson, who created the Ruffier-Dickson index (RDI). In France, the Ruffier-Dickson Index is commonly used to assess cardiorespiratory fitness.


The Ruffier Squat Test evaluates leg strength and endurance.

Equipment Required

To perform this test, you will need the following:

  • Heart rate monitor
  • Metronome
  • Stopwatch
  • Recording sheets
  • Chair
  • Calculator
  • Paper and pen

Pre-Test Procedures

Before conducting the test, it is important to explain the procedures to the participant and screen for any health risks. Obtain informed consent and record basic information such as age, height, body weight, gender, and test conditions.

Test Procedure

  1. Have the participant sit or lie down and measure their resting heart rate (HR1) by counting their pulse over 15 seconds.
  2. Set the metronome to a rate of 40 beats per minute.
  3. Instruct the participant to perform 30 squats in time with the metronome for a duration of 45 seconds.
  4. The squatting motion involves bending the knees to a 90-degree angle while keeping the back straight and the arms extended forward.
  5. Immediately after completing the 45 seconds of squats, have the participant sit down and measure their heart rate again. Take the post-exercise heart rate over the first 15 seconds (HR2) and then again one minute after the test (HR3) from 1 minute to 1 minute 15 seconds post-exercise.
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The Ruffier Index (RI) and Ruffier-Dickson Index (RDI) are calculated based on the heart rate measurements. Lower scores indicate better exercise tolerance. The RDI places less emphasis on resting heart rate.

RI = (HR1 + HR2 + HR3 – 200) / 10
RDI = [(HR2 – 70) + 2(HR3 – HR1)] / 10

Ruffier-Dickson Index Ratings

  • Excellent: Below 0
  • Good: 0-5
  • Average: 5-10
  • Fair: 10-15
  • Poor: Above 15


The Ruffier Squat Test is a simple and self-administered test that can be performed with minimal equipment.


The fitness index can also be calculated using different exercises, such as performing 20 push-ups for 30 seconds.


  • Dickson, J. (1950). Utilisation de l’indice cardiaque de Ruffier dans le contrôle médico-sportif, Med. Educ. Phys. Sport, 2, 65-79.
  • Ruffier JE. Considerations on the index of heart resistance to effort [in French]. Med Educ Phys Sport. 1951;3:7-12.
  • Joussellin E. Le test de Ruffier, improprement appelé test de Ruffier-Dickson. Medicins du sport. 2007;83(4 January 2014):33-4.
  • Guo Y, Bian J, Li Q, Leavitt T, Rosenberg EI, Buford TW, et al. (2018) A 3-minute test of cardiorespiratory fitness for use in primary care clinics.
  • Sartor F, Bonato M, Papini G, Bosio A, Mohammed RA, Bonomi AG, et al. (2016) A 45-Second Self-Test for Cardiorespiratory Fitness: Heart Rate-Based Estimation in Healthy Individuals.

Similar Tests

  • Chair Stand: Stand up repeatedly from a chair for 30 seconds.
  • Home Squat Test: Perform as many squats as you can.
  • Endurance Jump (30 Seconds): Jump across a hurdle as many times as possible in 30 seconds.
  • Wall Squat: Hold a sitting position while leaning back against a wall.
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Related Pages

  • List of Other Strength Tests
  • Measuring Resting Heart Rate
  • About Resting Heart Rate


Q: How does the Ruffier Squat Test assess cardiovascular endurance?
The Ruffier Squat Test measures heart rate before and after performing squats to evaluate cardiovascular endurance. The test calculates the Ruffier-Dickson Index, which is commonly used in France to classify cardiorespiratory fitness.

Q: Can I perform the Ruffier Squat Test on my own?
Yes, the Ruffier Squat Test can be self-administered. It requires minimal equipment and can be easily conducted at home or in a gym.


The Ruffier Squat Test is a simple and effective way to assess leg strength and endurance. By measuring your heart rate before and after performing 30 squats, you can calculate the Ruffier-Dickson Index and evaluate your cardiovascular fitness. This test can be done on your own with minimal equipment, making it a convenient option for evaluating your physical fitness level. Incorporate the Ruffier Squat Test into your fitness routine to track your progress and improve your cardiorespiratory endurance.