Functional Fitness test

$399

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How we assess

The Tristar Functional Fitness Assessment covers five validated domains:

  • Aerobic capacity (VO2max) The single strongest predictor of longevity in the scientific literature. Measured directly using the VO2 Master Pro — not estimated from a formula. Weighted most heavily in the overall biological age calculation because the evidence base for its importance is the most robust.

  • Grip strength Measured using a Camry dynamometer. Grip strength is a well-established proxy for overall muscular strength and is independently associated with cardiovascular disease risk, hospitalisation rates, and mortality across all age groups. It declines predictably with age when left untrained — and responds well to targeted intervention.

  • Chair stand test A timed 5x sit-to-stand assessment measuring lower body strength, power, and functional mobility. Performance on this test is strongly associated with fall risk, functional independence, and survival in older adults. It's one of the most understated yet clinically informative tests in the longevity toolkit.

  • Single-leg stance Balance and proprioceptive function, assessed with eyes open and closed. Balance declines significantly with age and is a major determinant of fall risk and injury vulnerability. Recent research has linked inability to hold a 10-second single-leg balance to significantly elevated mortality risk in middle-aged adults.

  • Mobility assessment Functional range of movement across key joints and movement patterns, assessed through a structured screen. Mobility limitations compound with age when not addressed and are a common early indicator of musculoskeletal risk.

What is it?

Your age is a number. Your functional fitness age is a measure of how your body actually performs — and unlike your birthday, it's something you can change.

Calculated from five validated physical assessments, each chosen for its established link to long-term health and all-cause mortality. Not arbitrary fitness tests — these are the measurements research consistently identifies as the strongest predictors of how well you age, how long you live independently, and how much capacity you carry into your later decades.

The result: a single number that shows where you sit relative to your peers — and exactly which areas to focus on to change it.

What the results tell you

  • Functional fitness age — a single calculated age based on your performance across all five domains, benchmarked against population norms for your biological age and sex

  • Domain-by-domain breakdown — your result in each assessment area compared to age-matched norms, showing exactly where you're ahead of your age and where you're behind

  • Biological age estimate — a weighted composite score using established hazard ratio weightings from the longevity research literature

  • Priority focus areas — clear guidance on which domains will have the greatest impact on your functional age score if improved

  • Baseline for tracking — your results are documented so future retests can show measurable change over time

  • For anyone who wants an honest, objective picture of where they are physically — not based on how they feel, but on what the data shows.

    This assessment is particularly valuable for:

    • Adults over 40 wanting to understand their longevity trajectory and take targeted action

    • Athletes who train hard but want to check whether they're neglecting foundational health markers

    • People returning to exercise after a period of inactivity

    • Anyone whose GP has flagged concerns about metabolic health, cardiovascular risk, or functional decline

    It's also a powerful corporate wellness tool — an objective, non-invasive assessment that gives employees a meaningful health benchmark and a clear action plan.

  • Allow 60–90 minutes including all assessments, measurement, and results review.

    • Wear comfortable exercise clothing and flat shoes suitable for movement

    • No specific fasting required

    • Avoid intense exercise in the 24 hours before your assessment if possible — we want to assess your baseline, not your fatigue

    • Bring any relevant health history if your GP has flagged specific concerns

  • We recommend reassessment every 6–12 months to track progress. Functional fitness age is not fixed — consistent, targeted training and lifestyle intervention can meaningfully shift your score at any age. Retest pricing matches initial assessment rates.

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All prices NZD inclusive of GST. Includes full results report and debrief.