The instrument case

The instrumentsfree mobility tests you can take at home

The five tests Limber runs, scored by the same arithmetic the app scores them with. Not a sample of the battery — the battery. Then the composite they roll into, the hip station taken in one sitting, one published test that is nobody’s app, and one page that estimates instead of measuring and says so at the top.

A physiotherapist measures ankle dorsiflexion with a wall, a ruler and an appointment. Here are the wall and the ruler. No account, nothing stored, nothing sent: your readings live in the address bar and nowhere else, which means they are yours to keep, share or throw away.

The composite

Range Score

The five tests in this case compose into one 0–100 reading, by the same arithmetic the app runs. Ground you have not surveyed is drawn unsurveyed and left out of the mean — never filled in with a guess.

Range Score no reading yet
POSTERIOR Toe touch ANKLES Knee-to-wall SHOULDERS Shoulder reach HIPS Hip flexor SPINE no test yet

Your plate, as it stands: five stations, none surveyed. The faint ridge is a specimen — somebody else's finished survey, printed under yours so the empty plate shows what a full one looks like. Take any test and this line becomes yours.

Everything in the case
01 Toe Touch Test

Posterior chain — hamstrings, glutes and lower back. Five bands, one 0–100 reading.

Nothing. Floor and standing room. · About a minute · No account

02 Knee to Wall Test

Ankle dorsiflexion in centimetres, left and right kept apart. One of two tests in the battery that produce a real measured number.

A wall, and a ruler or tape · About two minutes · No account

03 Shoulder Mobility Test

Shoulder mobility as a chain — the reach behind the back, in hand-widths, with left and right kept apart.

Nothing. Standing room. · About two minutes · No account

04 Hip Flexor Test

Hip flexor length on each side, read against the bench line — the Thomas test, simplified so you can take it alone.

A bed or bench you can lie on with your hips at the edge · About two minutes · No account

05 Deep Squat Test

The whole lower body as one screen — depth, heels and whether the bottom of the squat is somewhere you can rest.

Nothing. Floor and standing room. · About a minute · No account

06 Range Score

The composite. Whatever you have measured, rolled into one 0–100 reading and drawn as an elevation profile — with the ground you skipped left dashed.

Your readings from the five tests · Instant — it composes what you have · No account

07 Hip Mobility Test

The hips, in three positions: a squat hold and a hip flexor check scored on the app's own anchors, and a rotation compare that is read left against right rather than scored.

A bed or bench with a firm edge, a chair, and floor space · About five minutes · No account

08 Sitting-Rising Test

Getting to the floor and back up without support — the published 10-point sitting-rising score. Not one of Limber's five tests, and not part of the Range Score.

Floor space, bare feet, room to fail safely · About a minute · No account

09 Splits Timeline

How long the splits might take, in six-week training blocks and a wide month range. An estimate with its arithmetic printed and its uncertainty stated — not a reading, and never a date.

A tape or ruler, a floor, and something to measure to · About two minutes · No account

This list is what is built, and it is in one order for a reason. The first five instruments are the app’s whole onboarding battery; the Range Score is the composite it rolls them into; the hip mobility test is that same battery’s Hips station taken in one sitting. All seven score on the same scale, with the same weighting and the same refusal to fill in ground nobody surveyed, and each one carries your readings on to the next in the address bar — so a survey travels with you without an account and without anything being stored. Take them in any order.

The last two are the exceptions, and they are exceptions in different directions. The sitting-rising test is a published clinical protocol scored on its authors’ own 0–10 rubric rather than on Limber’s anchors. The splits timeline does not measure anything at all: it estimates, from four answers, and it prints its arithmetic under the result so you can see where the evidence stops. Neither enters the Range Score. The rest of the instruments the plan names are still being cut, and each appears here when it works rather than as a link to a page that does not exist.

What these are

Self-tests, not assessments. They tell you where a joint is today, on a repeatable scale, so that a second reading weeks later means something. They do not diagnose anything and they do not treat anything.

Stop at a stretch, never at sharp pain. Anything sharp, electric or numb is not a stretch — ease out. If pain persists, radiates down a limb, or follows an injury, see a clinician rather than a web page.

Where the scoring comes from.

Every band and every anchor on the battery pages is the app's own — the same range_math table the product scores a real test with, not a scale invented for the web. If a number moves in the app it moves here.

The two exceptions — the published sitting-rising rubric and the splits timeline, which estimates rather than measures — say so on their own pages. Nothing in this case is scored on a scale somebody here made up, and every instrument that leans on a paper lists it at the foot of its page.

Read the field notes