What is the sit and reach test?
The definition of sit and reach test is a measuring test to determine the level of someone’s flexibility. The sit and reach test is a common fitness test that measures the flexibility of your lower back and hamstrings. The test is simple to perform and only requires a few minutes to complete. The test involves sitting and reaching forward using either a tape measure or testing box.
Flexibility refers to the ability to move the joints through their full range of motion. If you are anything like me, you might find that your flexibility is not what it once was.
Whether this is due to a chronic injury, a sedentary lifestyle or merely a component of age, having pliant muscles is key to performing daily activities. Still, you might not be exactly sure how to measure your flexibility. One test that commonly used in the evaluation of flexibility is the sit-and-reach test.
The Sit-and-Reach Test Defined
There are two sit and reach components: the testing box, and the sit and reach ruler. The testing box is a device used to measure flexibility. It consists of a box with a sliding ruler attached to it.
As you may have already guessed, this examination only involves sitting and reaching. You will be required to sit down on the floor (preferably on a padded mat below your trunk and legs). Position yourself so that your legs are out in front of you.
Your toes should be pointed towards the ceiling, and the back of your knees should be as close as possible to touching the floor. It is common to use either a table or a box to make certain that your feet are completely upright.
Firmly place the ruler on the table so that the edge closest to you lines up with the zero-centimetre mark (the beginning of the ruler). Then, slowly bend forward until the tips of your fingers are as far along the ruler as possible without straining yourself and measure the distance.
How to Perform the Sit and Reach Test
Before we look at some typical sit-and-reach normative data results, there are a few suggestions to keep in mind.
Use the warm-up specified by your chosen protocol and keep it consistent between assessments. Different warm-up or stretching routines can affect the result, so they should not be changed between baseline and retest. Then, slowly ease yourself into the sit-and-reach position. Never perform any quick movements when reaching forward; you could pull your hamstrings or the muscles in your lower back.
Sit and Reach Test Protocol
To obtain the most relevant sit-and-reach normative data, it is a good idea to perform this test three different times while resting for a few moments between each stretch. If you are like me, you will notice that you can reach farther out after the first two attempts. Do not assume that averaging three attempts is the correct scoring rule. Follow the stated protocol, which may use the best trial, a specified number of trials or another defined summary, and use the same rule at retest
Interpreting the Data
A sit-and-reach score records performance in a standardised forward-reaching task commonly used as an indicator of hamstring and lower-back flexibility. It is not a direct measurement of the range of motion of every joint involved.
First, we should note that sit-and-reach performance can differ with age, sex, activity background, body proportions and the protocol used. Interpret results using a reference dataset collected with a comparable method. Generally, those who participate in sports or athletes tend to have more supple and pliable muscles than those rarely perform physical exercise.
There are two sit-and-reach variants, including traditional and modified protocols. Before using the reference values below, confirm that the table uses the same sit-and-reach variant and zero point as your test. The Cartwright Fitness sit and reach box uses a 15 cm foot-line setting and can also be configured for other protocols. Do not compare a score with a table that uses a different zero point without applying the protocol’s stated conversion.
Sit and Reach Reference Table (Protocol-Specific)
For repeat testing, use the same sit and reach box, zero point and scoring method each time. For a quicker interpretation workflow, use our free Sit & Reach Test Calculator, checking that its stated protocol and reference dataset match the test you administered.
Category labels such as “fair” or “good” only have meaning when they come from a defined reference dataset and matching protocol. For longitudinal monitoring, the raw distance and testing conditions are often more useful than a generic category label.
If flexibility is a training goal, use an appropriate programme and monitor change with the same sit-and-reach protocol. A low score alone does not diagnose a problem or prescribe a particular stretching dose.
The sit-and-reach test measures performance in a specific forward-reaching task and is influenced by the protocol and body proportions. A low score should be interpreted against appropriate reference data and the purpose of the assessment rather than treated as a diagnosis or automatic training prescription.
For repeat testing, standardise the warm-up, box or ruler zero point, knee position, number of attempts and scoring rule so that changes are more likely to reflect performance rather than a changed protocol. For professional use, record the protocol, zero point, warm-up, number of trials and scoring rule with the result so a future retest can reproduce the same conditions.
