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Interactive App-Linked Battery

The Fitness Age Blueprint

Measure your
Function Score

Six short self-tests you can run at home with your phone produce seven scored signals, because the camera-heart-rate test records both resting heart rate and heart-rate recovery. Those signals feed one composite Function Score (0–100) with a re-test trend line. Your phone's camera and motion sensors help where they can — and every test has a manual fallback if a sensor is blocked.

Your latest Function Score

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Complete the readiness check, set your profile, then run your first test.
Open the re-test dashboard ›

Prefer a quick 5-minute manual estimate? Try the free Fitness Age quick check ›

Start here: Readiness & safety check ›
Six tests · seven scored signals
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Camera heart rateFingertip pulse for resting HR & step-test recovery
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🧍
Balance & steadinessMotion-sensor sway during a timed one-leg stand
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🪑
30-second chair standGuided timer for lower-body strength-endurance
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🌟
Sit-to-riseFloor transfer quality — strength, balance & mobility
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🚶
Walk speedTimed walk over a set distance
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🤼
Grip & carryTimed dead-hang or loaded carry hold
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Educational fitness & function estimate only. The Fitness Age Blueprint is a training tracker. It is not a medical test and does not measure biological age, longevity, mortality risk, or disease. Sensor readouts are training signals, not diagnostics. Stop any test that causes chest pain, dizziness, faintness, palpitations, breathlessness, or pain, and speak with a clinician about any concern before starting.

Turn any weak spot into a training path

Every component of your score maps to a BPF program that trains it directly. The dashboard suggests where to start based on your lowest sub-scores.

Get your plan & Ken's weekly tip

Enter your email and Ken will send the companion training plan for your weakest scores, plus one practical tip a week. Unsubscribe anytime.

Your test history, individual test results and readiness answers stay on this device. If you submit this form, your email address and, where available, your latest Function Score and Fitness-Age estimate are transmitted so Ken can follow up; no individual test results or readiness answers are sent.

Want Ken to review your results and build your plan directly?

Apply for coaching with Ken ›

The Fitness Age Blueprint is educational and is not a substitute for medical care. © 2026 Ken Hoyer / Body Plus Fitness. Help