Squads are routinely put through a battery of movement, strength and fitness tests before a season begins. The tests are widely described as predicting injuries, which overstates what they can do.
Prediction at the individual level is weak
Screening tests separate groups only loosely. A poor score raises the average risk across a population slightly, which is not the same as identifying which individual will be hurt.
Injuries depend on load, fatigue, contact and chance, all of which occur after the test. A screening result captured in July cannot account for a schedule congestion in February.
Programmes that promise to identify at-risk athletes therefore tend to disappoint. The tests are real measurements, but the outcome they claim to forecast is dominated by later events.
Baselines are the more useful output
The strongest reason to test everyone is to know what each athlete looks like when healthy. Normal ranges vary enormously between individuals, positions and sports.
When someone is injured later, the question becomes whether they have returned to their own numbers rather than to a population average. Without a baseline that comparison is unavailable.
This is also how concussion assessment works. A baseline cognitive and balance profile makes a post-injury result interpretable in a way that a single test never could.
Some findings are directly correctable
Screening reliably surfaces things that can be addressed: a large strength imbalance between sides, restricted ankle movement, poor single-leg control, or a history the athlete had not mentioned.
Whether fixing these prevents injury is debated, but they limit performance regardless. A player who cannot decelerate on one side is constrained in ways worth resolving on their own merit.
The history questionnaire is often the most informative part. Previous injury remains among the more consistent signals of future injury in the same region.
Tests measure what they measure
A jump test measures jumping. It does not measure how a knee behaves in a contested aerial duel, and inference from one to the other is an assumption rather than a finding.
Screening also happens once, while the properties it measures fluctuate weekly with fatigue and training. This is why some programmes have shifted toward brief, frequent monitoring instead.
Reliability is a further limit. Several widely used movement scores depend on who is watching, and the same athlete rated by two staff members can receive different marks on the same morning.
Why squads keep doing it
Screening creates a shared record that staff, incoming coaches and future clinicians can all refer to. It also forces a structured conversation with each athlete about their own history.
There is a scheduling function too. Fitness testing establishes where each athlete sits when preseason begins, which determines how quickly training load can be raised for them individually.
Understood as baseline collection rather than prophecy, the exercise is defensible. Interpreting any individual result still requires a clinician who knows the athlete and the sport.
