Six test categories produce seven scored signals, because camera heart rate contributes both resting heart rate and heart-rate recovery. They combine into one Function Score out of 100 with a re-test trend line. The Fitness-Age estimate below is a rough, educational translation of that score — not a measurement of your biological age, health, or lifespan.
Re-run the whole battery weekly, or refresh a single test any time. Same conditions each week make the trend meaningful.
Go to the test hub ›Get your score and a plan for your lowest components sent to you, plus Ken's weekly training tip. 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.
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Apply for coaching with Ken ›The Fitness Age Blueprint is educational and is not a substitute for medical care. Stop any test that causes pain, dizziness, chest discomfort, or breathlessness. © 2026 Ken Hoyer / Body Plus Fitness. Help