How to Test Your Mobility at Home: The 6-Joint Assessment That Reveals Your Weakest Areas

Why Most People Have No Idea How Mobile They Actually Are

Ask most people how flexible they are and they will give you an answer based on whether they can touch their toes. This is roughly as useful as assessing your cardiovascular fitness by checking whether you can walk up one flight of stairs without getting winded. It tells you something, but not nearly enough — and it tells you nothing about the specific areas where your movement is breaking down.

A proper mobility assessment measures something more specific and more useful: functional range of motion across the key joints that determine how well your body moves, how much pain you experience, and how high your injury risk is during physical activity. It is not about achieving extreme positions. It is about whether each joint has the range of motion required for normal, healthy human movement.

The six joints covered in this assessment — hips, hamstrings, shoulder complex, ankles, lumbar spine, and core — account for the majority of movement limitations, pain patterns, and injury mechanisms that affect adults in the 21st century. They are also the six areas most commonly degraded by modern life: desk work, sedentary behaviour, and the one-dimensional movement patterns of most recreational exercise.

Testing them takes under 10 minutes. The information they produce is more actionable than anything you will get from a general fitness assessment, because it tells you exactly where to direct your attention — not generally, but specifically.

What a Mobility Score Actually Measures

Before describing the assessment, it is worth clarifying what a mobility score represents — because the term is used loosely in the fitness industry in ways that obscure its meaning.

A mobility score is a measure of active, controlled range of motion in a specific joint, assessed against a functional threshold — the minimum range of motion required for that joint to perform its role in human movement without compensation. It is not a comparison to elite athletic standards or extreme flexibility benchmarks. It is a comparison to what a healthy, normally functioning adult body should be capable of.

A hip score of 1 does not mean you are less flexible than average. It means your hip range of motion is below the threshold required to perform fundamental movements — deep squats, single-leg stance, forward hip hinging — without lumbar spine or knee compensation. That compensation is where chronic pain and injury accumulate over time.

Scores are typically assigned on a 1-to-5 scale:

1 — Very restricted: below functional threshold; compensation patterns are likely already producing symptoms 2 — Restricted: below functional threshold; compensation is present but symptoms may not yet be obvious 3 — Functional: meets the minimum threshold for healthy movement; some room for improvement 4 — Good: above threshold; minor limitations that affect performance but not daily function 5 — Excellent: full, controlled range of motion at all measured positions

The goal for most adults is not to score 5 in every joint. It is to score at least 3 — to restore functional range of motion in the joints that are currently below threshold — and to know which joints need the most urgent attention.

The 6-Joint At-Home Assessment

Perform each test on a flat, non-slip surface. For bilateral tests (both left and right), record the score for each side separately — asymmetry between sides is itself a meaningful finding.

1. Hip Mobility: The Deep Squat Test

Stand with feet shoulder-width apart, toes pointed slightly outward. Without holding anything for support, lower into a deep squat until your thighs are parallel with the floor or below. Hold for 3 seconds.

Score 5: Thighs below parallel, heels flat, torso upright, knees tracking over toes. Score 4: Thighs parallel, heels flat, slight forward lean. Score 3: Thighs parallel, heels flat with effort, moderate forward lean. Score 2: Heels must rise, or cannot reach parallel without hands for support. Score 1: Cannot reach parallel, or experiences pain in the attempt.

The deep squat requires simultaneous hip flexion, external rotation, ankle dorsiflexion, and thoracic extension. A low score almost always indicates restriction in one or more of these areas rather than a single isolated muscle problem.

2. Hamstring Mobility: Active Straight Leg Raise

Lie on your back with both legs straight. Keeping the test leg straight and the opposite leg flat on the floor, raise the test leg as high as possible without the opposite hip lifting or rotating. Measure the angle.

Score 5: Leg reaches 80 degrees or above (nearly vertical) without compensation. Score 4: Leg reaches 70-79 degrees. Score 3: Leg reaches 60-69 degrees — functional threshold for most daily activities and exercise. Score 2: Leg reaches 45-59 degrees. Score 1: Below 45 degrees, or opposite hip lifts significantly during the movement.

Note: this test assesses neural tension in the posterior chain as much as hamstring length. A sharp, nerve-like quality to the restriction rather than a pure muscle pull may indicate sciatic nerve involvement rather than simple hamstring tightness.

3. Shoulder Mobility: Combined Rotation Test

For internal rotation: place your test arm behind your back with the elbow bent. Slide your hand up your back as far as possible. Note the highest vertebral level you can reach.

For external rotation: reach over your same shoulder and slide your hand down your back as far as possible.

Score 5: Internal rotation reaches T6-T8 (mid-thoracic); external rotation reaches T6 from above. Score 4: Internal rotation reaches T10-T12; external rotation reaches T8. Score 3: Internal rotation reaches L2-L4 (lower lumbar); external rotation reaches T10. Score 2: Cannot reach past L5; significant asymmetry between sides. Score 1: Pain during the movement, or gross restriction preventing the test position.

Shoulder mobility is highly asymmetric in most adults — the dominant arm typically scores differently from the non-dominant arm. Score both sides.

4. Ankle Dorsiflexion: Knee-to-Wall Test

Kneel or stand facing a wall. Place one foot with the heel on the floor approximately 10 cm from the wall. Drive your knee forward toward the wall while keeping the heel flat. Mark the furthest distance at which you can make knee-to-wall contact with the heel flat.

Score 5: Knee-to-wall contact with heel flat at 12 cm or more from the wall. Score 4: Contact at 10-12 cm. Score 3: Contact at 8-10 cm — functional threshold for squatting and running mechanics. Score 2: Contact at 4-7 cm; significant tightness in the calf and Achilles. Score 1: Cannot make knee-to-wall contact without the heel rising, or less than 4 cm.

Limited ankle dorsiflexion is one of the most commonly missed mobility restrictions and one of the most consequential — it directly affects squat mechanics, running gait, and ACL injury risk.

5. Lower Back: Thomas Test (Hip Flexor and Lumbar)

Lie on your back at the edge of a table or elevated surface. Draw both knees to your chest, then lower one leg at a time, holding the opposite knee in place.

Score 5: The lowered leg's thigh reaches the surface (or horizontal); knee hangs freely at approximately 90 degrees; no lumbar arch increase. Score 4: Thigh reaches horizontal with minor knee extension or hip external rotation compensation. Score 3: Thigh is slightly above horizontal but below 15 degrees. Score 2: Thigh sits 15-30 degrees above horizontal; noticeable lumbar arch increase. Score 1: Thigh above 30 degrees, or pain in the hip flexor or lumbar spine during the test.

This test assesses the resting length of the iliopsoas and rectus femoris. A low score here is one of the most reliable predictors of chronic lower back pain in sedentary adults.

6. Core Stability: Dead Bug Hold

Lie on your back with arms extended toward the ceiling and knees bent at 90 degrees (tabletop position). Slowly lower one arm overhead and the opposite leg toward the floor simultaneously, keeping your lower back pressed into the surface throughout. Return and repeat on the other side.

Score 5: 10 repetitions per side with zero lumbar lift — back remains in contact with the floor throughout. Score 4: 7-9 reps with consistent lumbar contact. Score 3: 5-6 reps with consistent lumbar contact; this is the functional threshold. Score 2: Fewer than 5 reps, or lumbar arch occurs before the limbs reach full extension. Score 1: Cannot maintain lumbar contact at all, or pain during the movement.

How to Interpret Your Results

Once you have a score for each of the six joints, the interpretation follows a simple hierarchy.

First, identify any joint scoring 1 or 2. These are your priority areas. Restrictions at this level are actively affecting the way you move, even if you are not aware of it — the compensation patterns created by these restrictions are loading other structures inappropriately and creating conditions for future pain or injury. A hip score of 1 combined with a core score of 2, for example, is one of the most common combinations underlying chronic lower back pain in desk workers.

Second, look at your overall pattern. If five or six of your scores are 3 or below, your programme needs to address mobility broadly — not just one or two isolated restrictions. This is common in adults who have been predominantly sedentary for several years, or who exercise exclusively in one or two movement patterns (running and cycling are particularly common examples — both impose high repetitive loads in a limited range of motion without requiring or developing the multi-planar joint mobility assessed here).

Third, note any significant asymmetry — a score of 4 on the left and 2 on the right, for example. Asymmetry indicates a compensation pattern more specifically than overall restriction, and is often associated with unilateral pain syndromes: shoulder pain on one side, hip pain on one side, or lower back pain that is predominantly unilateral.

Finally, score yourself a composite: add up all six scores (or twelve, if you scored bilateral joints separately) and divide by the number of tests. A composite of 3.5 or above represents generally functional mobility. A composite between 2.5 and 3.5 indicates meaningful room for improvement. Below 2.5 suggests that mobility is actively limiting your function and should be a primary training priority, not an afterthought.

What to Do With Your Scores

The assessment is only useful if it changes your behaviour. Here is a practical framework for acting on your results.

For joints scoring 1 or 2, perform targeted mobility work daily — not three times a week. Daily practice is the minimum effective dose for improving restricted joints because connective tissue adaptation requires repeated stimulus. Seven minutes of focused work on a specific joint, every day, will produce measurable improvement in 3 to 4 weeks. The same seven minutes three times a week will take 8 to 10 weeks to produce equivalent change.

For joints scoring 3, maintain them with two to three sessions per week. You do not need to prioritise these in the way you prioritise the restricted joints, but neglecting them entirely risks regression — particularly under the accumulated load of regular training or desk work.

For joints scoring 4 or 5, include them in a general maintenance routine but do not over-invest. Your time is better spent on the joints below 3.

Retest every 4 to 6 weeks using the same tests in the same order. The goal of retesting is not motivation — it is data. Without periodic reassessment, you cannot know whether your programme is working or whether you need to adjust. Mobility work that feels productive does not always translate to measurable range of motion change; retesting closes that feedback loop.

MotionLab's in-app mobility assessment covers these six joints with guided movement tests and automatically generates a personalised session programme weighted toward your lowest-scoring areas. After each assessment, your routine priority shifts based on your current scores — so the app adapts as you improve, rather than keeping you working on joints that no longer need the same attention. If you have not completed an assessment recently, starting there is the highest-leverage thing you can do for your mobility programme right now.