A functional capacity evaluation lands on the desk with numbers attached. Lift tolerances in lbs. Sitting and standing durations in minutes. A grip-strength reading, a validity profile, a summary that says the examinee can manage light, sedentary or medium work. It looks decisive - and that is exactly where files go wrong. The numbers are not the answer. They are evidence, and evidence has to be read.
An FCE is one of the more useful tools in a claims professional’s kit precisely because it moves the conversation from diagnosis to function - from what someone has to what someone can do. But a report that isn’t read carefully can be worse than no report at all, because it carries the authority of measurement while quietly resting on assumptions that don’t hold. Here is what those numbers actually establish, and what they don’t.
A functional capacity evaluation is a structured, standardized set of physical tasks - lifting, carrying, reaching, sitting, standing, gripping, sometimes job-specific simulations - performed under observation and measured against normative data. Done properly, it doesn’t ask the examinee whether they can do something. It asks them to do it, and records what happens. That is its core value: it replaces self-reported limitation with observed performance.
But “observed performance” is a snapshot of one person, on one day, doing standardized tasks in a clinic - not their job, over a career, on an ordinary Tuesday. The gap between those two things is where interpretation lives, and it is the gap a defensible report is careful to name.
The first thing a careful reader looks for isn’t the lift number. It is whether the effort behind it was full. A performance is only meaningful if the person was genuinely trying - and evaluators have several ways of gauging that: consistency of performance across repeated and cross-referenced tasks, the relationship between reported pain and physiological signs, coefficient-of-variation measures on grip testing, whether movement observed outside formal testing matches movement during it.
This is where neutrality matters. A self-limited effort is not proof that someone is exaggerating - pain, fear of re-injury, deconditioning and psychological factors all legitimately suppress performance, and no single indicator reliably separates “won’t” from “can’t.” A good FCE reports the validity findings and what they do and don’t support; it does not leap to a verdict on the person’s character. A report that brands an examinee a malingerer on thin evidence isn’t strong. It is a liability.
An individual lifts 15 lbs once, cleanly, in the morning. Can they do it? Yes. Can they do it forty times a shift, five shifts a week, for the next decade without breaking down? That is an entirely different question - and it is usually the question the claim actually turns on.
Sustainability is the single most misread element of an FCE. A strong isolated performance tells you about capacity in the moment; it says far less about tolerance over a working day, and less still about durability over a working life. The better evaluations build this in - measuring performance across a longer protocol, watching for decline, noting recovery time - and the better reports state plainly whether a result reflects a sustainable baseline or a one-off peak. When a return-to-work plan is built on a peak treated as a baseline, it tends to fail, and the second absence is usually longer than the first.
An FCE doesn’t sit in isolation, and it shouldn’t be read in isolation. Its findings have to be squared against the medical file, the diagnosis, the imaging where relevant, and - critically - the actual demands of the role in question. This is why a functional capacity evaluation and a physical demands analysis are far more powerful together than apart: the FCE tells you what the person can do; the PDA tells you what the job truly requires, not what the job title implies. A capacity matched to a job description rather than to the real work is a plan waiting to unravel.
Where the FCE and the medical evidence disagree, that is not a problem to paper over - it is the most important thing in the report. A defensible opinion explains the discrepancy. A weak one ignores it and hopes no one asks.
The features that make a functional capacity evaluation defensible are unglamorous and consistent: a standardized, recognized protocol rather than an ad-hoc battery; an appropriately qualified evaluator; explicit validity reporting; clear reasoning from observed performance to stated conclusion; and honest acknowledgement of the test’s limits. When those are present, the report survives scrutiny - at the negotiating table, at the LAT, in court. When they are missing, the numbers on the page offer a false sense of certainty that comes apart the moment someone competent pushes on it.
Direct IME’s functional capacity evaluations are built to be read closely and to hold up when they’re tested. If you have a file where the question is what someone can genuinely sustain - not just what they can do once - we’re happy to talk it through.