SFMA Philosophy, Rationale, and the Clinical Reasoning Model
Domain 1 - Philosophy, Rationale, and the Clinical Reasoning Model
The SFMA (Selective Functional Movement Assessment) is a movement-based clinical reasoning model for people who already have a complaint. It is not a screen, not a diagnosis, and not a test battery you score and file. The Functional Movement Screen samples asymptomatic, active people for risk; the SFMA takes a symptomatic person from ten whole-body patterns down to the specific limiting factor, then back up to the pattern to prove the change. The exam tests whether you can state that rationale precisely and run the reasoning sequence on a case without jumping to treatment.
The reasoning sequence
- Score the top-tier patterns first; pain is the first branch point, function second.
- Painful patterns (FP or DP) go to medical referral or clearance, never to corrective exercise.
- Dysfunctional non-painful patterns (DN) go to breakouts to locate the limiting factor.
- Treat the limiting factor, not the site of symptoms, then retest the top-tier pattern.
Philosophical claims the exam expects
- Regional interdependence: segments are mechanically and neurologically linked, so a stiff ankle can drive knee or low-back symptoms.
- Compensation is a strategy, not an error: the system sacrifices mobility to protect stability, so restriction often shows up one joint away from the pain.
- Movement diagnosis: the SFMA produces a statement such as "limited ankle dorsiflexion and thoracic extension limiting the overhead deep squat". That sits beside a medical diagnosis and never replaces it.
- Assess, treat, retest is the whole model compressed into three words.
Worked example
A runner reports anterior knee ache. Overhead deep squat scores DN with no pain during testing. Breakout: squat with heels elevated becomes functional; squat with arms forward remains dysfunctional. Reasoning: dorsiflexion and thoracic extension are the limiters; the knee is the output. Treat ankle and thoracic mobility, retest the squat, and treat the knee only if the pattern stays restricted with clean joints above and below.
Traps that cost marks
- Treating the site of pain because it "makes clinical sense".
- Calling SFMA a diagnostic instrument, or applying it before screening for red flags.
- Running breakouts on a painful pattern instead of referring.
- Reading FN as "nothing to find" and never assessing the rest of the body.