After menopause, women can lose muscle faster than at any other point in their lives — often without realising it. This free 30-second test shows exactly where you stand, and what to do next.
Menopause is a muscle event, not just a hormone event.
Project Aeterna gives you the data to understand it — and act on it.
Most health platforms track weight, steps, and sleep. None of them measure what gerontologists consider the strongest predictor of long-term independence: functional muscle strength.
By the time most women notice the effects of muscle loss, years of preventable decline have already accumulated. The clinical tools to catch this early have existed in research settings for 25 years. Project Aeterna makes them available at home — free, in 30 seconds, with no equipment.
Muscle loss is one of the earliest signs of the menopausal transition — and one of the most reversible, with the right information and the right interventions.
Project Aeterna was built by researchers who have spent careers studying exactly what happens to muscle, bone, and function as women age. The science isn't adapted from general wellness research — it is the research. Every metric, every normative table, every intervention recommendation traces back to peer-reviewed publications from this team or the foundational studies their work builds on.
Distinguished physician-scientist specialising in the cellular and molecular biology of muscle and bone aging. Research spans sarcopenia, longevity interventions, the kynurenine pathway, and sex-specific muscle transcriptomics. Active publications through 2025–2026 in Geroscience, Biochimie, and JCI Insight.
Section Chief of Endocrinology, specialising in regenerative medicine, bone health, and the biological mechanisms of healthy aging. Co-investigator on NIH-funded studies of musculoskeletal aging, dietary interventions, and the role of tryptophan metabolism in lifespan extension.
Expert in cellular biology of musculoskeletal aging. Co-author on studies of lipid metabolism in sarcopenia and osteoporosis, COVID-19-related muscle loss, and microbiota-derived compounds that extend lifespan and improve muscle and bone health. Publications active through 2026.
Topics include sarcopenia, longevity interventions, tryptophan and kynurenine metabolism in aging muscle, sex-specific muscle transcriptomics, lipid metabolism in age-related musculoskeletal disorders, and microbiota-derived compounds that improve muscle and bone health. Continuously NIH-funded for over a decade.
No signup · No equipment · 90 seconds
Most longevity apps ignore hormonal shifts entirely. Project Aeterna Premium is built around a proprietary Graph Neural Network — trained on the specific biology of the menopausal transition.
The GNN maps your chosen interventions across 20,000 biological interactions — including GLP-1 use, hormone therapy, supplements, diet, and exercise — through the lens of the 12 Hallmarks of Aging. It then generates a personalised biological age estimate and 3–5 year trajectory that reflects your hormonal profile, not a population average.
No other consumer health app models this. It exists because the research team that built it has spent decades studying exactly these mechanisms.
Age, height, weight, and menopause stage. Four questions that personalise your score against age-matched peers drawn from NHANES population data.
Processed on your device. Never transmitted or stored.
Stand up from a chair fully, sit back down — as many times as you can in 30 seconds. Tap to count, or use your phone's motion sensor. No equipment needed.
Rikli & Jones (1999) 30-second chair stand protocol.
Your mobility age. Your peer percentile. One evidence-based intervention. Data that previously required a clinical appointment — in under two minutes.
Premium adds biological age modelling and 5-year trajectory.
Two input methods, same clinical output. Hold your phone and tap +1 each time you stand — matching the original observer-count method from the Rikli & Jones validation — or tuck your phone in your waistband for automatic motion-sensor counting. Both produce the same rep count used in NHANES normative comparisons. The tap method is closer to how the original clinical research was conducted.
The free test gives you real, useful data. Premium and Pro are annual plans — no monthly billing, no recurring surprises.
Published in the Journal of Aging and Physical Activity. Established normative data and test-retest reliability for the STS protocol. This is the study your score is built on.
Your percentile is drawn from the National Health and Nutrition Examination Survey — real population data from real women your age, stratified by BMI and menopause stage.
The team's most recent work — published in Biochimie and Geroscience — directly informs the intervention recommendations and the GNN biological age model used in Premium.
The Premium model is trained across 12 hallmarks of aging including mitochondrial function, cellular senescence, and inflammation — personalised to your intervention profile and menopause stage.
The sit-to-stand test has been a standard tool in gerontology for 25 years. It tracks exercise intervention outcomes, reflects lower body strength and power, and correlates strongly with long-term functional independence. It has been validated across multiple studies, referenced in NHANES normative data, and used in assessment batteries worldwide.
The team that built Project Aeterna has published extensively on muscle aging, sarcopenia, and the biological mechanisms behind the numbers this app produces. When the app recommends a specific intervention, that recommendation traces back to peer-reviewed evidence — not a wellness algorithm.
The tap-to-count input method, which is the default, is actually closer to the original Rikli & Jones observer-count methodology than automated sensor counting. The rep count is the rep count. The NHANES tables don't care how it was recorded.
Take the Free Test →All processing happens locally on your phone. Motion sensor data is analysed in real time and immediately discarded. We don't collect your name, email, health data, or location. No accounts. No tracking. No third-party data sharing. We built it this way deliberately — because we know exactly what it means to ask women in this community to trust a health app with their body data.
No signup. No equipment. No guessing. Just 90 seconds and a chair — and a number that tells you exactly where your strength stands right now.
Free forever · No credit card · Works on any smartphone
We're researchers first. If you have questions about the science behind your score, want to report a bug, or are interested in partnering with Velogenix — we'd like to hear from you.