Track Your Physical Reserves in Just 5 Minutes

Clinically proven. WHO-aligned.
Easy to use anywhere — at home or in care settings.
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How the System Works
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What is the Eforto® System?

The Eforto® System enables the monitoring of grip strength, muscle fatigability, and self-perceived fatigue—key biomarkers for assessing Vitality Capacity through a simple, guided 5-minute effort test.

Whether you're a healthcare provider, researcher, health coach, or an older adult, Eforto delivers instant, objective insights in prevention, triage, rehabilitation, disease management and clinical research.

These insights capture essential aspects of your neuromuscular health and energy metabolism—key indicators of your body's resilience, early signs of frailty, and potential low-grade inflammation.

One system: Three Powerful Components.
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Eforto® Vigorimeter

ergonomic handgrip device for measuring strength and endurance
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Eforto® Mobile App

guides validated self-tests and visualizes results
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Eforto® Metrics Platform

secure remote monitoring and analytics dashboard

We make monitoring physical reserves as convenient and routine as measuring blood pressure.

View Full Eforto® Test
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Eforto® Vigorimeter

Outperforms traditional dynamometers

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Superior ergonomy

The ergonomic bulb is superior compared to classic isometric dynamometers.

  • More reliable across different handsizes
  • Allows sustained grip strength test to assess muscle fatigability
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Usable by the weakest

With only 100g, Eforto is usable by even the weakest persons.

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High Accuracy

Medical grade pressure sensor with auto-calibration before each test.

  • The Vigormeter exists in 2 version
  • Eforto® R1 Device for consumers use
  • Eforto® M1 Vigorimeter for medical use

The Eforto® M1 Vigorimeter is registered at FDA for medical use in the USA.

Eforto® App

Guided self testing with validated protocols

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Validated protocols

Validated protocol to assessing Vitality Capacity biomarkers in less than 5 minutes.

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Results in 5 minutes

It takes less than 5 minutes to perform the validated test protocol and get your results.

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Self-testing at home

Interactive guidance by the app allows self-testing for monitoring at home.

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Eforto® Metrics Platform

Remote Monitoring with insightful metrics

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Track evolution over time

Remote Monitoring with tracking the evolution of Eforto® biomarkers over time.

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Insightful reporting

Algorithms analyse test data automatically, providing results with traffic light coding.

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Secure & interoperable

Compliant data processing with security and interoperability (API) by design. HIPAA, GDPR and ISO27001.

Main Benefits
Fast - Guided Testing
Fast, Guided Testing

Perform a complete self-assessment in under 5 minutes—anytime, anywhere. No lab. No clinician required.

Personalized Insights
Personalized Insights

Receive a traffic-light score based on validated reference values. Red = Risk, Green = Resilient. Simple, actionable feedback.

Evidence-Based
Evidence-Based & WHO-Aligned

Captures biomarkers recognized by the World Health Organization and validated in over 20 scientific publications.

Relevant outcomes

Built for different users

Used by:

  • Clinicians for triage, rehab, and frailty screening
  • Researchers for objective, high-frequency outcome tracking
  • Health coaches for fitness optimization and motivation
  • Older adults for proactive self-care at home

Key biomarkers Eforto captures

Next Generation Muscle Assessment

Eforto®: The Smarter Way to Measure True Muscle Performance

Eforto® introduces a new standard in grip strength assessment by measuring force per unit area, ensuring results that are fair, accurate, and consistent across users. This approach removes the hidden biases found in traditional dynamometers, giving clinicians, researchers, and patients an anatomically balanced and replicable measure of true muscle health.
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Results Stay Reliable Across Hand Geometries


Eforto® ensures unbiased grip strength readings by keeping results consistent compared to normative data regardless of finger span, palm width, or hand length.

Standardized handle geometry and surface contact ensure reliable results for the same muscle effort, enhancing fairness, clinical tracking, and data accuracy.

Validation versus standard dynamometers confirms reliable, hand-size–neutral performance.
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Adaptable Grip Surface for Better Ergonomics

Eforto®’s ergonomic, adaptable grip suits most hand sizes and conditions, ensuring comfortable, consistent strength testing for every user.

Eforto®'s variable sensor contact zones, contoured edges, and natural curve minimize joint pressure and positioning errors.

Better ergonomics boost comfort, reduce failed attempts, and improve first-measurement success, validated through usability studies.
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Replicable Data Across Every Measurement

Eforto® ensures consistent, replicable results across users, clinics, and instruments for reliable grip strength tracking.

Replicability comes from calibrated sensors, standardized measurement prompts, automated quality checks, and inter-device calibration aligned with clinical gold standards.

Documented reliability and validity correlations of Eforto® confirm data accuracy that results in building trust.

A New Era in Muscle Profile Assessment

When it comes to grip strength testing, not all measurements are created equal. Sugiyama, T., Whitney, D.G., Schmidt, M., Haapala, H., Bowman, A., Peterson, M.D. and Hurvitz, E.A., 2024. Measuring grip strength in adolescents and adults with cerebral palsy in a clinic setting: Feasibility, reliability, and clinical associations. Developmental Medicine & Child Neurology, 66(1), pp.87-94.

Why Dynamometers Don’t Tell the Whole Story

Besides key biomarkers like Fatigability and CPV that traditional dynamometers miss to measure, their measurements are affected by important variables that introduce hidden bias, as supported by multiple peer-reviewed studies
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Hand size bias

Larger hands can register higher grip force on a dynamometer, even if actual muscle strength isn’t greater. A 339-participant trial found readings from a dynamometer correlated with palm width, hand length, and forearm size (Neumann, S., Kwisda, S., Krettek, C. and Gaulke, R., 2017. Comparison of the grip strength using the Martin-Vigorimeter and the JAMAR-dynamometer: establishment of normal values. in vivo, 31(5), pp.917-924.)
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Fixed handle limitations

The rigid grips and fixed spacing of many dynamometers can be uncomfortable for people with arthritis, smaller hands, or weaker strength, leading to underestimation. Research shows this design can compromise both comfort and accuracy.

(Gränicher, P., Maurer, Y., Spörri, J., Haller, B., Swanenburg, J., de Bie, R.A., Lenssen, T.A. and Scherr, J., 2024. Accuracy and Reliability of Grip Strength Measurements: A Comparative Device Analysis. Journal of Functional Morphology and Kinesiology, 9(4), p.274.)
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Cross-device inconsistency

Even when reliable, different dynamometers often produce slightly different results, indicating a lack of validity. complicating comparisons in clinical or research settings. (Benton, M.J., Spicher, J.M. and Silva-Smith, A.L., 2022. Validity and reliability of handgrip dynamometry in older adults: A comparison of two widely used dynamometers. PLoS One, 17(6), p.e0270132.

Beyond Peak Power: Muscle Fatigability and Grip Work Add Prognostic Value

Eforto®: Towards a comprehensive profile of muscle assessment, endurance, and perceived vitality
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Capture Endurance, NOT just Peak Power

While dynamometers only capture one-time grip strength, Eforto®’s power also captures how long strength is sustained, revealing muscular endurance and fatigue, not just maximal output.
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Spotting Hidden Decline Early

 Among octogenarians who didn’t report fatigue, those with lower Grip Work and CPV scores and higher self-perceived fatigue were more likely to be pre-frail, even though traditional strength tests appeared normal.

The Connection Between Endurance and Lived Experience is Now Clear

Eforto®’s multi-step grip strength test goes beyond a single snapshot, delivering a complete vitality profile that predicts fraility, measures strength, endurance, and recovery, helping detect changes that traditional tests often miss.

Ready to monitor Vitality Capacity in just 5 minutes?

Request a Demo