FMS Level 2 key terms
FMS Level 2 · Get comfortable with the vocabulary.
- Deep Squat
- Related: Active Straight-Leg Raise, Ankle Dorsiflexion Clearing Test, Asymmetry
A bilateral overhead squat screen used to observe symmetrical hip, knee, and ankle mobility together with thoracic extension, shoulder flexion, and core control under a loaded pattern.
- Hurdle Step
- Related: Asymmetry, Frontal Plane Knee Control
A single-leg stepping screen that challenges stance-leg stability and hip stability while the swing leg clears a hurdle, revealing bilateral differences in mobility and motor control.
- Inline Lunge
- Related: Ankle Dorsiflexion Clearing Test, Thoracic Extension
A split-stance screen performed with feet in a straight line that tests hip extension and flexion, ankle and knee mobility, and trunk control while resisting rotation.
- Shoulder Mobility Screen
- Related: Impingement Clearing Test, Thoracic Extension
A bilateral reaching test comparing the distance between fists behind the back, used to estimate shoulder extension, internal and external rotation, and scapular mobility.
- Active Straight-Leg Raise
- Related: Deep Squat, Posterior Pelvic Tilt
A supine screen in which one leg is lifted with the ankle dorsiflexed and knee straight while the pelvis stays neutral, assessing hamstring and calf flexibility plus core stability.
- Rotary Stability
- Related: Asymmetry, Anti-Rotation Control
A quadruped screen requiring diagonal arm and leg lift while the trunk resists rotation, revealing asymmetries in core control, hip stability, and shoulder loading tolerance.
- Trunk Stability Push-Up
- Related: Anti-Extension Control, Thoracic Extension
A push-up screen performed from a standardized position that checks whether the trunk moves as a rigid unit, exposing loss of core bracing and spinal extension under load.
- Scoring Criteria
- Related: Painful Screen, Asymmetry, Clearing Test
The standardized rules that assign a score of 0 to 3 for each screen, including the exact start position, the movement standard, and the conditions that require a zero for pain.
- Asymmetry
- Related: Symmetry, Hurdle Step, Rotary Stability
A difference in score between the left and right sides of a bilateral screen; it is flagged as a risk indicator even when the lower of the two scores is otherwise acceptable.
- Clearing Test
- Related: Painful Screen, Ankle Dorsiflexion Clearing Test, Impingement Clearing Test
A brief provocation maneuver performed after a related screen to confirm the absence of pain; a positive result overrides the movement score and requires a zero.
- Painful Screen
- Related: Clearing Test, Referral Threshold
Any screen that reproduces pain earns a score of zero regardless of movement quality, and the finding is treated as a medical referral issue rather than a training target.
- Ankle Dorsiflexion Clearing Test
- Related: Deep Squat, Inline Lunge, Clearing Test
A kneeling provocation that loads the ankle into dorsiflexion to check for pain before or after lower-body screens, helping distinguish stiffness from joint irritation.
- Impingement Clearing Test
- Related: Shoulder Mobility Screen, Clearing Test
A shoulder provocation in which the hand is placed on the opposite shoulder and the elbow is lifted, used to screen for pain that would invalidate the shoulder score.
- Compensation
- Related: Relative Flexibility, Movement Dysfunction
An alternative movement strategy the body adopts when a required segment lacks mobility or control, shifting demand to another joint or tissue and changing the observable screen pattern.
- Movement Dysfunction
- Related: Compensation, Regional Interdependence
A recurring, observable deviation from an efficient movement pattern that is associated with reduced options, altered load distribution, and possible symptoms during activity.
- Regional Interdependence
- Related: Movement Dysfunction, Thoracic Extension
The principle that motion and control at one body region influence adjacent regions, so a limitation in the ankle or hip can change what appears at the knee, pelvis, or trunk.
- Relative Flexibility
- Related: Compensation, Joint-by-Joint Approach
The tendency of the body to move through its path of least resistance, so a stiff segment causes excessive motion at a more mobile neighboring segment during a task.
- Joint-by-Joint Approach
- Related: Relative Flexibility, Mobility Restriction
A planning heuristic that alternates mobility and stability demands along the kinetic chain, used to reason about which segment is likely stiff and which is likely unstable.
- Frontal Plane Knee Control
- Related: Hurdle Step, Dynamic Valgus
The ability to keep the knee tracking over the foot without inward collapse during single-leg loading, reflecting hip abductor and external rotator contribution to alignment.
- Dynamic Valgus
- Related: Frontal Plane Knee Control, Motor Control
A combined pattern of hip adduction and internal rotation with knee valgus during loading, often linked to reduced hip control and increased stress on the knee.
- Thoracic Extension
- Related: Deep Squat, Regional Interdependence, Shoulder Mobility Screen
Upward-backward motion of the upper spine that supports overhead reach and upright posture; when limited, the lumbar spine or shoulders often compensate.
- Posterior Pelvic Tilt
- Related: Active Straight-Leg Raise, Lumbopelvic Control
Backward rotation of the pelvis that flattens the lumbar curve; during leg-lowering or leg-raise tasks it can signal limited hamstring length or an attempt to gain range.
- Mobility Restriction
- Related: Motor Control, Joint-by-Joint Approach
A measurable loss of available joint range that limits a pattern, distinguished from a control problem by testing whether the motion exists passively or with support.
- Corrective Exercise Continuum
- Related: Inhibit, Activate, Integration
A staged sequence of inhibit, lengthen, activate, and integrate that moves a client from reducing overactive tone to reinforcing a new pattern under increasing demand.
- Inhibit
- Related: Corrective Exercise Continuum, Lengthen
The first corrective stage, using self-myofascial techniques such as foam rolling or ball pressure to reduce perceived tension in an overactive muscle before stretching or activation.
- Lengthen
- Related: Inhibit, Activate
The corrective stage that restores extensibility of a short or overactive tissue through static or contract-relax stretching after inhibition, preparing the joint for controlled motion.
- Activate
- Related: Lengthen, Integration, Motor Control
The corrective stage that recruits an underactive muscle with isolated, low-threshold contractions so it can contribute to the pattern before complex movement is reintroduced.
- Integration
- Related: Activate, Movement Retraining
The final corrective stage, retraining the whole movement pattern with progressively more demanding, functional tasks so the new recruitment strategy transfers to real activity.
- Corrective Progression
- Related: Integration, Motor Learning
The rule for advancing a corrective plan by increasing leverage, load, speed, or complexity only after the client shows clean execution at the current level.
- Motor Control
- Related: Movement Retraining, Anti-Rotation Control
The nervous system's organization of posture and movement, including timing, sequencing, and force modulation, rather than simply the presence of muscle strength.
- Anti-Rotation Control
- Related: Rotary Stability, Anti-Extension Control
The ability to resist unwanted trunk rotation while limbs or loads create rotational force, a core quality screened by diagonal patterns and trained with unilateral loading.
- Anti-Extension Control
- Related: Trunk Stability Push-Up, Lumbopelvic Control
The ability to prevent the lower back from arching when the trunk is challenged, achieved by coordinated abdominal and hip extensor activity rather than spinal stiffness alone.
- Lumbopelvic Control
- Related: Anti-Extension Control, Posterior Pelvic Tilt
Coordination of the trunk and pelvis that keeps the lumbar spine stable while the hips and legs move, central to leg-raise and single-leg screens.
- Motor Learning
- Related: Movement Retraining, Corrective Progression
The durable change in movement capability produced by practice, influenced by feedback type, repetition quality, and variability rather than sheer volume alone.
- Movement Retraining
- Related: Motor Learning, Motor Control, Integration
Systematic practice that replaces a compensatory strategy with a preferred one, using cues, external focus, and graded difficulty until the new pattern is automatic.
- Screening Order
- Related: Scoring Criteria, Baseline Screen
The fixed sequence in which screens are performed so that fatigue and prior testing do not distort later results, supporting consistent and comparable scores across sessions.
- Baseline Screen
- Related: Re-Screen, Screening Order
The initial recorded screen used as the reference for later comparison, informing exercise selection and showing whether a corrective plan is producing measurable change.
- Re-Screen
- Related: Baseline Screen, Corrective Progression
A repeat screen conducted after a training block to evaluate change, guide progression, and decide whether a corrective focus should continue, change, or be retired.
- Referral Threshold
- Related: Painful Screen, Scope of Practice
The point at which a screen finding, especially pain or a score of zero, exceeds the trainer's scope and should be sent to a qualified medical professional.
- Scope of Practice
- Related: Referral Threshold, Client Education
The legally defined boundary of what a fitness professional may assess, advise, and treat, which excludes diagnosis and shapes how screening results are communicated.
- Client Education
- Related: Scope of Practice, Movement Retraining
Explaining screen findings in plain, non-diagnostic language that connects a movement observation to a training goal, building buy-in without alarming or labeling the client.
- Programming Integration
- Related: Corrective Exercise Continuum, Re-Screen
Embedding corrective work into the broader training plan so mobility and control drills complement strength and conditioning goals instead of competing with them for time.