Strength Isometric Test: Push Test

The Push Test [Muscle Meter] measures how much force a client can produce during an isometric pushing task against a fixed resistance. It can provide useful context for upper-limb pushing strength, shoulder-girdle force output, pressing capacity, contact sport preparation, manual tasks and progress tracking.

The Muscle Meter is used to measure force output during the test. When used on its own, the Muscle Meter primarily measures peak force, which is the highest force value produced during the effort. When used with Measurz, Muscle Meter data can be recorded and analysed with broader strength and force-time metrics, including peak force, impulse, torque, rate of force development, time to peak and fatigue index.

For routine Push Test use, peak force is usually the main metric. Force as a percentage of body weight may be useful if directly calculated from the client’s test force and body weight, especially for baseline comparison, side-to-side comparison where relevant and retesting. Rate of force development and time to peak may be useful when rapid pushing force matters, such as contact sport, grappling, striking, bracing, tackling or explosive upper-limb tasks. Impulse may be useful if sustained force over a defined time window is intentionally tested. Fatigue index is only relevant if repeated or sustained pushing contractions are part of the protocol.

The result can support assessment reasoning and progress tracking, but it does not diagnose shoulder pain, chest wall pain, neck pain, nerve injury, injury risk, sport readiness or work capacity on its own.

What Is the Push Test [Muscle Meter]?

The Push Test [Muscle Meter] is an isometric force assessment where the client pushes against the Muscle Meter without visible movement.

The test can be set up in different positions depending on the goal. Common options include standing, seated, supine, prone, half-kneeling, split stance or sport-specific pushing positions. The device may be placed against the hands, shoulder, chest, upper arm or another contact point depending on the protocol.

Because setup can vary widely, the Push Test should always be recorded as a specific protocol rather than a generic score. A standing bilateral chest-height push is not the same as a single-arm seated push or a sport-specific bracing push.

Consistent setup matters because body position, arm angle, hand position, device placement, strap angle, anchor point, trunk position and client effort can all affect the result. This test measures force output in a specific pushing setup. It does not fully measure push-up capacity, bench press strength, sport contact ability, shoulder function, manual handling capacity or movement quality on its own.

Step-by-Step Protocol / Practice

1. Prepare the client

Explain that the test measures how strongly they can push into the Muscle Meter in a fixed position.

Record baseline symptoms, shoulder discomfort, wrist symptoms, elbow symptoms, chest wall discomfort, neck symptoms, fatigue, recent training and confidence with pushing.

Use at least one submaximal practice trial so the client understands the effort, position and direction of force.

2. Set the client position

Choose the position that matches your assessment goal.

Record:

• standing, seated, supine, prone or kneeling position
• bilateral or single-arm version
• side tested if unilateral
• shoulder angle
• elbow angle
• wrist position
• hand position
• trunk position
• stance or foot position
• support used
• whether straps or handheld resistance are used

3. Set up the Muscle Meter

Set the Muscle Meter so it measures the intended pushing force direction.

This may involve the device being held by the professional, fixed to a wall, stabilised with a strap, placed against a rigid surface or connected to an anchor system.

Record the device setup, strap angle, anchor point, strap length and whether the setup moved during testing.

4. Place the device or contact point

Position the Muscle Meter so the client can push without slipping or discomfort.

The contact point should be comfortable and repeatable. Avoid pressure on sensitive bony areas or positions that create wrist, shoulder or neck discomfort.

5. Stabilise the position

Stabilise the client’s trunk, pelvis, shoulder and arm position as needed so the effort remains a push in the intended direction.

Avoid uncontrolled trunk lean, shoulder shrugging, elbow movement, wrist collapse, foot movement or breath holding unless the protocol intentionally includes those features.

6. Give clear instructions

Use consistent instructions such as:

“Push into the device as hard as you can and hold.”

“Build up smoothly, then push hard.”

“Keep your body position still.”

“Keep breathing.”

“Do not jerk the start.”

“Tell me if you feel pain, tingling, cramping or anything unusual.”

7. Record trials

Use 1–2 practice trials, then record 2–3 maximal trials.

A common contraction duration is 3–5 seconds.

Rest for 30–60 seconds between trials, or longer if symptoms, cramping or fatigue occur.

Record whether the final score uses the best trial or the average of recorded trials.

8. Identify invalid trials

Repeat or mark a trial as invalid if:

• the client changes body position
• the device slips
• the strap or anchor moves
• the wrist collapses
• the shoulder shrugs excessively
• the trunk rotates or leans
• the client jerks the start
• pain limits effort
• the client starts before the device is ready
• the professional cannot hold the device steady

9. Record symptoms

Record shoulder pain, elbow pain, wrist pain, neck discomfort, chest wall discomfort, paraesthesia, cramping, confidence and apprehension.

For retesting, match the same position, device placement, force direction, instructions, contraction duration, rest period, scoring method and symptom recording.

Why It Is Used

The Push Test [Muscle Meter] is used to quantify pushing force output in a repeatable setup.

It may be useful for:

• baseline upper-limb pushing strength assessment
• monitoring change over time
• side-to-side comparison when tested unilaterally
• tracking shoulder-girdle strength after reduced loading
• assessing sport or gym pushing-force context
• supporting contact sport, grappling, striking or bracing assessment
• workplace context where pushing, bracing or manual tasks are relevant
• comparing pushing strength with pulling strength, grip strength, shoulder ROM or push-up capacity
• client education

The test should support assessment reasoning. It should not be used as a stand-alone diagnostic, capacity or clearance measure.

What It Measures

The test primarily measures isometric pushing force in the chosen setup.

It may provide useful information about:

• upper-limb pushing force capacity
• shoulder-girdle force output
• side-to-side force difference where relevant
• confidence producing pushing force
• pain response during resisted pushing
• change in force over time
• relationship between pushing strength and related functional tasks

It does not directly measure:

• bench press one-repetition maximum
• dynamic push-up performance
• shoulder diagnosis
• chest strength in isolation
• sport contact capacity
• work capacity
• tissue tolerance
• movement quality
• readiness to return to sport or work

Understanding the Result, Reference Values and What to Look For

What a higher or lower result may suggest

A higher score may suggest greater pushing force output in that specific test setup. A lower score may suggest reduced force output, but the reason should be interpreted carefully.

Lower force may be influenced by pain, apprehension, poor familiarisation, fatigue, poor body position, wrist discomfort, shoulder symptoms, inconsistent device placement, poor stabilisation, reduced confidence or device movement.

One result should not be interpreted in isolation. Interpretation is strongest when the same setup is repeated over time and reviewed alongside symptoms, confidence, movement quality, related tests and functional goals.

What can influence the result

Important influences include:

• body position
• shoulder angle
• elbow angle
• wrist position
• hand position
• trunk position
• stance width
• force direction
• device placement
• strap angle
• anchor position
• pain
• fatigue
• familiarisation
• client confidence
• professional strength if handheld

Normative, reference and comparative values

Published Muscle Meter-specific universal norms for a general Push Test are limited because the test can be performed in many different positions and force directions.

Because of this, reference values should be used cautiously and only when the test setup, device placement, population and scoring method are closely matched.

For most Measurz use, the most useful comparisons are:

• the client’s own baseline
• change across retests
• right versus left comparison if unilateral
• force as a percentage of body weight if directly calculated
• pain or symptom response
• confidence during testing
• comparison with related upper-limb tests

A side-to-side difference of around 10% or more is often worth reviewing more closely in unilateral strength testing, especially if it matches symptoms, previous injury, confidence changes or functional differences. This should not be used as a strict pass/fail rule.

Reference values provide context, not diagnostic, work-clearance or sport-clearance cut-offs.

Practical interpretation priorities

Use this order:

• compare with the client’s own baseline
• compare right and left sides when relevant
• consider symptoms during and after testing
• consider confidence and effort quality
• review whether compensations were present
• compare with related strength, mobility or performance tests
• relate the result to sport, gym, work or daily-life demands
• retest under the same conditions to monitor change
• do not use reference values as pass/fail criteria

What to Look at for Each Relevant Muscle Meter Metric

Peak force

Use for maximum pushing force output, baseline strength, side-to-side comparison where relevant, progress tracking and comparing force across retests.

Look for best score or average score, consistent setup, change from baseline, side-to-side difference, symptom response and compensation during maximal effort.

Force as percentage of body weight

Use only when calculated directly from test force and body weight.

Look for changes over time and side-to-side differences where relevant. Do not treat it as a universal target unless the comparison data use the same method.

Torque

Torque is usually less practical for a general Push Test unless the lever arm and biomechanical model are clearly defined.

Use only when the lever arm is measured and a specific interpretation is needed.

Rate of force development

Use when rapid pushing force production matters, such as contact sport, grappling, striking, bracing, blocking or explosive upper-limb tasks.

Look for early force production and whether RFD changes while peak force stays similar.

Time to peak

Use to understand whether force is produced quickly or gradually.

Look for delayed peak force, faster time to peak across retests, and whether a slower time reflects caution, pain, poor cueing or actual performance difference.

Impulse

Use only if a sustained force window is intentionally tested.

Look for whether the client can produce and sustain force over the selected time window.

Fatigue index

Use only if repeated or sustained pushing contractions are part of the protocol.

Look for drop-off across repeated trials and whether fatigue improves across a training block.

Assessing and Providing Context for Different Client Populations

Youth clients

Consider growth, maturation, coordination, attention, training age and familiarisation. Practice trials are important so the client learns to push without excessive trunk, shoulder, wrist or breath-holding compensation.

Adults and general fitness clients

Use the test for baseline strength, progress tracking and confidence with pushing force. Compare results with gym goals, push-up capacity, grip strength and shoulder mobility.

Older adults

Consider shoulder comfort, wrist tolerance, fatigue, daily pushing tasks and confidence. A lower score may provide useful context, but it should not be interpreted without functional assessment.

Athletes and sport clients

Consider contact sport, grappling, tackling, striking, blocking, pushing and bracing demands. Peak force alone does not equal sport performance, but it can support a broader upper-limb strength profile.

Workplace and manual task clients

Consider pushing, pulling, carrying, bracing, gripping and manual handling demands. Do not use one strength score to clear work duties.

Clients returning after injury

Use the test to monitor force output, confidence and symptom response over time. Strength alone should not confirm readiness.

Clients with pain or persistent symptoms

Pain, fear, guarding, fatigue, apprehension and confidence may influence force. Record symptoms carefully and compare with related findings.

Higher body mass clients

Absolute force and force relative to body mass may both be useful. Avoid assumptions and interpret the result in relation to goals, symptoms and function.

Reliability, Validity and Measurement Considerations

Repeatability improves when the same setup is used each time.

Record and standardise:

• same body position
• same side tested if unilateral
• same shoulder angle
• same elbow angle
• same wrist position
• same hand position
• same trunk position
• same device placement
• same strap setup, if used
• same anchor height and distance, if straps are used
• same force direction
• same stabilisation
• same instructions
• same contraction duration
• same rest period
• same scoring method
• same symptom and compensation recording

Hand-held and portable dynamometry can be reliable when protocols are standardised, especially when the test uses a controlled make-test format. However, handheld testing may be affected by the professional’s ability to stabilise the device. Strap-stabilised or fixed setups can improve consistency where available.

Because the Push Test can be performed in many positions, the result should always be interpreted as protocol-specific.

Common Errors and Limitations

Common errors include:

• not defining the exact push direction
• inconsistent device placement
• changing shoulder or elbow angle
• allowing wrist collapse
• allowing trunk lean or rotation
• allowing shoulder shrugging
• device slipping
• strap or anchor movement
• breath holding
• testing through high pain
• comparing different push protocols directly
• treating the score as a diagnosis or clearance measure

Limitations include:

• testing is setup-dependent
• manual resistance may be limited by professional strength
• strap setup requires careful anchor control
• Muscle Meter-specific universal norms may be limited
• pain, fear or guarding can reduce force output
• peak force does not measure endurance or movement quality
• pushing force does not automatically predict push-up, bench press, sport or work performance
• the test does not determine sport or work readiness on its own

Practical Applications

The Push Test [Muscle Meter] may be useful for:

• establishing a baseline
• tracking pushing strength over time
• comparing right and left sides where relevant
• reviewing force relative to body weight if directly calculated
• monitoring response to exercise or intervention
• supporting upper-limb strength profiling
• comparing with push-up, grip, shoulder strength and pulling tests
• educating the client about measurable progress
• reviewing sport, gym, work or daily-life demands

Ideas to Make the Result Better

If force is low, consider assessing shoulder ROM, wrist comfort, grip strength, pushing technique, upper-limb strength, fatigue and confidence with loading.

If one side is much lower, compare with symptoms, injury history, shoulder mobility, elbow or wrist symptoms, grip strength and functional tasks.

If pain limits the result, record the pain response and review whether the test position, pressure point or effort level needs modification.

If force is good but function is limited, compare with push-up capacity, shoulder control, grip, pulling strength, pressing tolerance and sport or work demands.

If the client is improving, keep the same protocol and monitor whether strength, symptoms, confidence and function improve together.

Recommended Standard Protocol Summary

Position: Standardised seated, standing, supine, prone or task-specific push position
Start position: Shoulder, elbow, wrist, trunk and stance position recorded
Joint or trunk angle: Record shoulder angle, elbow angle, wrist position and trunk position
Trials: 1–2 practice trials, then 2–3 recorded trials
Contraction duration: 3–5 seconds
Rest: 30–60 seconds between efforts, or longer for high-force efforts
Metric: Peak force, plus percentage of body weight only if directly calculated
Attachment or device setup: Muscle Meter aligned with intended pushing direction through handheld, fixed or strap-stabilised setup
Final score: Best trial or average of trials
Key retesting requirement: Same position, device placement, force direction, instructions, contraction duration, rest and scoring method

FAQs

What does the Push Test [Muscle Meter] measure?

It measures isometric pushing force output in a specific test setup.

Is it the same as a push-up test?

No. The Push Test is usually an isometric test against a fixed resistance. A push-up test involves bodyweight movement and additional trunk, shoulder, elbow and wrist demands.

Should the result be recorded as percentage of body weight?

It can be if calculated directly from test force and body weight. Use it mainly for baseline comparison, side-to-side comparison where relevant and retesting.

Are there universal Push Test Muscle Meter norms?

Published universal norms are limited because the Push Test can be performed in many setups. Baseline and retest comparison are usually more useful.

Can this test determine work or sport readiness?

No. It can contribute to a broader test battery, but it should not be used alone to determine readiness.

What can make the result unreliable?

Different body position, force direction, device placement, strap setup, stabilisation, fatigue, pain, compensation and inconsistent instructions can affect results.

What should be recorded in Measurz?

Record body position, side if unilateral, device placement, force direction, peak force, percentage of body weight if directly calculated, symptoms, compensations, scoring method and retest conditions.

Key Takeaways

• The Push Test [Muscle Meter] measures isometric pushing force output.
• Peak force is usually the main routine Muscle Meter metric.
• The exact setup must be recorded because Push Test results are highly protocol-specific.
• Percentage of body weight should only be used when calculated directly from force and body weight.
• Baseline comparison, side-to-side comparison and retesting consistency are usually more useful than broad norms.
• Measurz should capture setup, symptoms, bodyweight-normalised values where directly calculated, compensations and retesting conditions.

References

Aerts, F., Sheets, H., & colleagues. (2025). Reliability and agreement of hand-held dynamometry using three standard rater test positions. International Journal of Sports Physical Therapy, 20(2), 253–262. https://doi.org/10.26603/001c.128286

Bohannon, R. W. (1986). Test-retest reliability of hand-held dynamometry during a single session of strength assessment. Physical Therapy, 66(2), 206–209.

Manchado, M. C., et al. (2023). Isometric shoulder testing using a forcemeter is a reliable method for muscle function evaluation. Sensors, 23(22), 9106. https://doi.org/10.3390/s23229106

Moraux, A., Canal, A., Ollivier, G., Ledoux, I., Doppler, V., Payan, C., & Hogrel, J.-Y. (2023). Psychometric properties of a standardized protocol of muscle strength assessment by hand-held dynamometry in healthy adults. BMC Musculoskeletal Disorders, 24, 311. https://doi.org/10.1186/s12891-023-06400-2