Your body is already sending movement signals

Look at the soles of your trainers. If one heel is more worn than the other, your body has been quietly redistributing load — probably for years. The same logic applies to the knee that protests only on stairs but feels fine on flat ground, or the unconscious twist in your spine every time you reach for something on a high shelf. None of these are quirks. They are compensations: small, adaptive reroutes the body makes to keep you moving when something upstream isn't working as well as it should.

The trouble is that most people register these signals only once pain arrives — by which point the pattern may have been running for months, or considerably longer. Professor Paul Lee, consultant orthopaedic surgeon, biomedical engineer, and author of Regeneration by Design, makes the point plainly in Practical Regeneration: awareness, not technology, is the starting point. The signals are already there; you simply need a structured way to read them.

That structure sits within the Physics pillar of the Regen PhD four-pillar framework — movement, posture and load as the first physical inputs to health. What follows is a ten-minute home movement audit drawn from the C.R.A.F.T. framework: your personal MOT for movement.

Why movement quality quietly degrades

Gravity is constant; what changes is how well your skeleton manages it. Stand well — ears above shoulders, shoulders above hips and ankles — and your joints share the load efficiently. Move that stack even slightly out of line, and the mechanics shift in ways that compound quietly over time.

The forward head is the clearest illustration. Practical Regeneration puts a precise figure on it: every inch the head drifts forward from neutral adds roughly 5 kg of effective load to the cervical spine. At two inches — a position many people hold for hours at a screen — the neck is managing the equivalent of a small bag of sand that never gets set down. The muscles at the back overwork; those at the front shorten; the upper back loses its natural efficiency. Phone use accelerates this geometry because it encourages the head to drop consistently in one direction. The Physics pillar frames this not as a pain problem but as a load problem: a daily mechanical input that accumulates like compound interest.

Similar arithmetic applies further down the chain. Right-angle positions at the hips, knees, and elbows minimise accumulated strain during seated work; any sustained deviation redistributes that load to structures not designed to carry it long-term.

This is where compensation patterns take hold. When one area is restricted or weak, the body re-routes load around it — not to resolve the underlying issue, but to preserve movement. The reroute works until the tissues absorbing the detoured load reach their own limit. Research by Cook et al. (2014) showed that movement-based screening — testing squat depth, lunge stability, shoulder mobility, and rotary control — can identify these deficits before injury develops. The C.R.A.F.T. framework brings the same logic within reach at home.

What the C.R.A.F.T. framework assesses

C.R.A.F.T. is the evaluative framework built into MAI Motion® — Professor Paul Lee's AI-powered, markerless motion capture platform, developed under an Innovate UK Knowledge Transfer Partnership and described in Practical Regeneration as a system that watches movement frame by frame. Tracking 15 skeletal keypoints at 120 frames per second, it generates a Motion Age: a functional biological age score benchmarked against age-matched population norms rather than your passport date.

The five qualities the framework assesses, drawn from the language used consistently throughout Practical Regeneration to describe what MAI Motion surfaces, are: Compensation (how the body reroutes load around a weak or restricted area), Rotation (the quality and timing of rotational movement through the chain), Alignment (how joints and spinal segments stack under load), Force (impulse and load distribution across structures), and Timing (the sequencing and coordination of movement patterns). Taken together, these dimensions allow the system to detect compensatory patterns long before symptoms develop — the kind of subtle rerouting that a standard examination tends to miss.

A home audit cannot replicate the precision of a clinical MAI Motion scan. What it can do is apply the same five-quality thinking with a mirror and a phone camera, producing the awareness that makes any subsequent scan more meaningful. This audit is a structured awareness exercise, not a clinical assessment.

The four tests below apply C.R.A.F.T. thinking without the technology.

The four home self-audit tests

Run through these four tests once a month on a clear floor with bare feet and a phone propped to film when needed. The aim is not to pass or fail — it is to notice, and to build a reference point you can compare against next month. If you have an existing injury or are in pain, check with a healthcare professional before attempting any of these.

1. Walking gait observation (Compensation + Timing)

Walk at your normal pace across the room — do not perform. Then turn round and do it again while someone watches, or film yourself from behind at knee height. Look for: whether each hip stays level or dips on the step, whether your arm swing is equal on both sides, and how each foot lands. Uneven arm swing or a dropped hip on one side suggests the body is routing load around a restriction somewhere in the chain.

2. Mirror posture scan (Alignment)

Stand naturally — do not straighten up first. In a full-length mirror, check: is one shoulder higher than the other? Does your head sit squarely above your chest or drift forward? Are your hands facing your thighs or turned inward towards each other? Are your knees locked back or gently soft? Note what you see rather than correcting it; the neutral state is the data.

3. Toe touch and overhead reach (Rotation + Alignment)

Reach both hands slowly toward the floor — no bouncing, no held breath. Note how far you reach and whether your weight shifts to one side. Then raise both arms overhead with palms together. Notice whether one shoulder pulls forward, or whether you arch your lower back to compensate for limited thoracic range. Asymmetry between sides matters more than the absolute distance achieved.

4. 30-second single-leg balance (Force + Timing)

Stand on one leg for 30 seconds with your arms crossed. Repeat on the other side. Note any trunk sway, arm flaring, jaw clenching, or a clear difference between sides. These small compensatory movements are the body's way of managing force it cannot yet control cleanly.

Bonus: self-filmed squat (all five dimensions)

Prop your phone at hip height to the side. Perform a slow, bodyweight squat — no shoes, no barbell. Watch where your knees track, whether your hips hinge evenly, whether your spine stays neutral, and the exact point at which control starts to drift. Watching yourself from the outside, as Practical Regeneration notes, creates immediate clarity about movement patterns that feel normal from within.

Red flags that deserve a closer look

Some of what you notice during the four tests is simply information. A few findings, though, are worth sitting with a little longer.

Clicking or clunking joints that occur consistently — not once, but every time you move through the same range — may suggest altered mechanics at that joint worth monitoring over time.

One-sided tightness that appears across more than one test is less likely to be random stiffness and more likely to reflect a directional compensation pattern: the body systematically favouring one side of the chain.

Needing momentum to rise from a chair — a rock forward, a grab for the armrest — points to a gap in the sit-to-stand sequence, either in functional strength or in the timing and staging of how the movement is organised.

Noticeable sway during single-leg balance, particularly if replicating the incidental daily test of standing on one leg while brushing your teeth reveals a clear difference between sides, is a low-threshold indicator of balance asymmetry that is easy to normalise and easy to miss.

None of these is a diagnosis. They are prompts — and the Time pillar in Professor Paul Lee's framework is precise on this point: compensatory patterns are far more addressable the earlier they surface. Catching a habit before it becomes structural changes what recovery looks like.

If any of these tests cause pain, stop immediately and seek advice from a qualified healthcare professional.

From home awareness to a fuller movement picture

The value of running these tests once is limited. Their real power comes from repetition — what you notice in month three that you could not see in month one is itself a measurement.

That accumulating attention is what makes a clinical movement assessment more productive when you're ready for one. Arriving at a MAI Motion scan having already spent weeks observing your own gait, balance asymmetry, and overhead reach means the session becomes a conversation rather than a cold start. The system's longitudinal data — stance-time symmetry, flexion curve under load, rotation timing — gives numerical shape to patterns you've already started to name. After an initial in-clinic baseline, follow-up scans via the MAI Motion app allow the same objective consistency at home, without wearables or calibration.

Worth noticing, too, is how a movement audit can open outward. Persistent one-sided restriction may connect to sleep quality or low-grade inflammation — signals that sit in the Chemistry and Biology pillars of Professor Paul Lee's framework rather than Physics alone. That is the systemic logic of Regeneration by Design: a finding in movement is rarely only about movement.

The most useful action now is the simplest one. Set a reminder for four weeks, repeat these tests, and write down what differs. The goal Professor Paul Lee sets out in Practical Regeneration is not a perfect score — it is a visible trend.