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

Why Traditional Dynamometers Don’t Tell the Whole Story?

When it comes to grip strength testing, not all measurements are created equal. Besides key biomarkers like Fatigability and CPV that traditional dynamometers miss, their measurements are affected by important variables that introduce multiple 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.  Multiple clinical studies found readings from a dynamometer correlated with palm width, hand length, and forearm size.
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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.

Cross-Device Inconsistency

Even when reliable, different dynamometers in test-to-test situations, they often produce different results, indicating a lack of validity, complicating comparisons in clinical or research settings.

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
Hand size bias - Image

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.)
handle limitations

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.

Eforto®'s Precision Promise  "Every time"

Eforto® is a vigorimeter measurement device designed to calculate a comprehensive muscle assessment for frailty prediction to track recovery status relative to hand surface area.

This means:

  • Hand-size Neutrality: Accurate results aren’t inflated or deflated by hand anatomy.
  • Ergonomics That Fit All Users: Adaptable grip surface for better ergonomics.
  • Data You Can Trust: Consistent, replicable, comparable results every time, across patients and settings.

By measuring force per unit area, Eforto® eliminates the hidden biases of traditional devices giving clinicians, researchers, and patients a more equitable, replicable and anatomically fair assessment of the true strength test.

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Eforto®’s Precision Promise - Every time

Eforto® is a Vigorimeter measurement device used to calculate a comprehensive muscle profile assessment relative to hand surface area.

This means:

  • Hand-size neutrality: Accurate results aren’t inflated or deflated by anatomy. (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.)
  • Ergonomics That Fit all users: adaptable grip surface for better ergonomics. De Dobbeleer, L., Beckwée, D., Arnold, P., Baudry, S., Beyer, I., Demarteau, J., Lieten, S., Punie, Y. and Bautmans, I., 2023. Comparison between two different handgrip systems and protocols on force reduction in handgrip assessment. Gerontology, 69(10), pp.1245-1254.)
  • Data You Can Trust: Consistent, replicable, comparable results every time, across patients and settings. (Lee, J.K., Jung, M., Lee, H.B., Chung, H.J. and Lee, S.H., 2024. Reliability and validity of the Martin Vigorimeter for grip strength measurement in Korean adults. Clinics in Orthopedic Surgery, 16(4), p.610.)

By measuring force per unit area, Eforto® eliminates the hidden biases of traditional devices, giving clinicians, researchers, and patients a more equitable and anatomically fair assessment of the true strength test. De Dobbeleer, L., Beckwée, D., Arnold, P., Baudry, S., Beyer, I., Demarteau, J., Lieten, S., Punie, Y. and Bautmans, I., 2023. Comparison between two different handgrip systems and protocols on force reduction in handgrip assessment. Gerontology, 69(10), pp.1245-1254.

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

Eforto® : Towards a comprehensive profile of muscle power, 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