FMS Level 1 common mistakes
FMS Level 1 · Understand the traps and how to avoid them.
Treating the FMS as a diagnostic or injury-prediction tool, and describing a low score as evidence that an athlete will get hurt.
Marketing language around 'predicting injury' is memorable, so candidates repeat it without knowing what the screen actually claims. The FMS is a screening system that identifies compensatory movement patterns and asymmetries to guide exercise selection; it is not a diagnostic instrument and does not identify pathology.
What to do instead
Before the exam, write one sentence you can defend: the screen rates movement quality on a 0–3 scale to prioritize corrective strategy, not to diagnose or prognosticate. When a stem asks what a score means, answer in terms of movement pattern and training priority, never in terms of injury risk or diagnosis.
Confusing the three scoring tiers: giving a 1 for pain, a 0 for 'could not complete', or a 2 for a pattern that produced pain.
The numbers look like an ascending quality scale, so candidates assume 0 is worst. In fact 0 is assigned when pain is reported anywhere during the test, regardless of how well the movement was performed, and the score is then carried into the clearing test logic.
What to do instead
Memorize the tiers as: 3 = movement completed without compensation; 2 = movement completed with compensation; 1 = movement not completed as instructed; 0 = pain anywhere during the test. Drill with stems where a perfect-looking squat produces pain - the answer is 0, plus the relevant clearing test, not 3.
Scoring the deep squat by depth alone and ignoring the overhead-arm and torso requirements, or awarding a 2 whenever heels lift without checking whether the dowel/board was used correctly.
The squat is visually dominated by depth, so candidates lock onto 'below parallel' and forget that a 3 requires the upper torso parallel to the tibia or more upright, the femur below horizontal, knees tracking over feet, and the dowel held overhead with the arms in line with the torso. Heel lift with the board is a compensation, not an automatic fail.
What to do instead
Score in a fixed checklist order: depth (femur below horizontal), torso angle relative to tibia, knee tracking over the feet, arms/dowel alignment, then foot position. A pattern that meets depth but loses torso angle or arm alignment is a 2. If the client cannot reach depth with heels down, retest with the board and score the compensated version as 2 only if all other criteria are met.
Missing the hurdle step's core criterion - that the moving leg's hip, knee, and ankle remain aligned while the stance leg stays extended and the torso stays still - and instead judging only whether the toe cleared the hurdle.
Clearing the string is the most visible event, so candidates grade on clearance and forget that the score hinges on loss of alignment, hip/pelvis motion, and knee or lumbar compensation.
What to do instead
Watch three things in order: (1) does the moving limb stay aligned hip-knee-ankle; (2) does the stance leg remain extended with no excessive hip flexion or knee bend; (3) does the torso or pelvis rotate or shift. Any loss of alignment is a 2. Clearing the hurdle with a flexed stance knee or a hiking pelvis is not a 3.
Scoring the inline lunge without checking that the rear foot stays on the board, the torso stays upright, and the dowel maintains contact at the head, thoracic spine, and sacrum.
Candidates focus on whether the front knee touches the board behind the heel and forget the dowel-contact and torso-upright criteria, which are the actual discriminators between 2 and 3.
What to do instead
Use a fixed sequence: rear foot position on the board, dowel contact at three points, torso upright and vertical, no lateral shift, front knee over the mid-foot and touching behind the front heel. Dowel loss of contact or lateral torso lean is a 2. If the client cannot assume the position, score 1, not 2.
Measuring shoulder mobility by eyeballing the hand gap and forgetting the rule that a 3 requires fists within one hand length and that a 2 applies when the gap exceeds one hand length but the movement is otherwise clean.
The hand-length standard is a specific, testable threshold, but candidates treat it as a vague 'close enough' judgment. They also forget the clearing test (shoulder impingement clearance) when pain is reported.
What to do instead
Measure the gap between the two fists against the client's own hand length at the thumb-side of the palm, and use the exact thresholds: within one hand length = 3; greater than one hand length = 2; cannot perform the pattern = 1; pain = 0 with the shoulder clearing test performed. Practice measuring on a partner so the threshold is second nature.
Scoring the active straight-leg raise on how high the leg goes relative to the other leg, rather than against the fixed landmark (the joint line of the knee / mid-thigh) and the requirement that the down leg stays flat and the ankle stays neutral.
The test looks like a hamstring-flexibility contest, so candidates grade on relative height and forget the fixed reference point and the requirement that the non-moving leg remains in contact with the board with the foot neutral.
What to do instead
Anchor on the landmark: the moving leg's malleolus should reach between the mid-thigh and the knee joint line for a 3, and the down leg must stay flat on the board with the foot in neutral. Loss of the down-leg contact, ankle dorsiflexion, or failure to reach the landmark is a 2. If the client cannot perform the pattern at all, score 1.
Scoring the trunk stability push-up by counting repetitions or by judging only whether the chest lifted, and forgetting the fixed hand position (thumbs at the level of the forehead for men, chin for women) and the no-lumbar-sag requirement.
The push-up is a familiar exercise, so candidates import rep-count and 'chest off the floor' criteria that do not belong to this screen. The hand-position standard and the requirement that the body lift as a unit are the actual scoring anchors.
What to do instead
Score on the fixed criteria: the body lifts as a unit with no lag in the hips or shoulders, the spine stays neutral (no sag or hyperextension), and the hands are placed per the standard (thumbs at forehead level for men, chin level for women). Any sag or lag is a 2; inability to perform the pattern is a 1; pain is a 0 with the spinal extension clearing test.
Ignoring the clearance tests, or performing them only when the primary score was already a 0, rather than as a required follow-up whenever pain is reported.
Clearance tests look like optional extras, so candidates skip them or apply them inconsistently. In practice the clearing tests are the mechanism that converts a painful pattern into a 0 and flags the need for referral, and they are scored pass/fail for pain.
What to do instead
Build a rule: any report of pain on a primary screen triggers the associated clearing test (shoulder impingement clearance for shoulder mobility, spinal extension for trunk stability push-up, spinal flexion for rotary stability, and the relevant clearing for the squat/lunge patterns). Score the clearing test as pain or no pain, and record it alongside the primary score.
Reporting a total score as the headline result and failing to prioritize asymmetries and painful patterns over the composite number.
A single total is easy to communicate, so candidates lead with it and treat asymmetry as a footnote. But the interpretive framework prioritizes pain (score 0) first, then asymmetry, then the lowest-scoring pattern, and the composite total alone can mask a serious asymmetry.
What to do instead
Rank findings in this order: any 0 (pain) → any left/right asymmetry → lowest-scoring pattern → composite total. When asked 'what should be addressed first', answer with the painful pattern or asymmetry, not the total. Practice writing a one-paragraph interpretation that names the priority and the corrective focus.