A measured approach to healthspan and performance, led by two clinicians: longevity GP Dr Colin Coward (GP lead) and Caitlin Hunt (AEP, AES, AUSCEP, performance lead), in partnership with Signal Health.
Your medicine and your exercise physiology, working from the same numbers. We measure where you actually stand, build the plan, and show you the change.
Longevity advice is everywhere. What's rare is measurement.
The O2 Longevity Lab is our premium program for people who want to take a thorough, measured approach to their long-term health: a medical baseline, objective performance testing, an individual plan, and scheduled retests so you can see how things are tracking. Where we can measure your progress, we do, and we review it with you.
For people in their 40s, 50s and beyond who want capacity and function for the decades to come, not just the absence of illness.
Your results become two plans built for you: a clinical protocol from your GP, and a performance protocol from your exercise physiologist. Clear, evidence-based, and coordinated across both teams.
Your medical protocol (what to test, what the results mean, and what to act on) is led by longevity GP Dr Colin Coward. Advanced cardiovascular, metabolic, cognitive and hormonal investigations, selected and interpreted by a doctor, with everything held to a clinical standard.
Your performance protocol is led by Caitlin Hunt, our Director and Performance Lead. VO₂ Max, metabolic and strength testing become a supervised, individually dosed program: exercise, clinically dosed, and progressed on how your body actually responds.
MA/BM BCh (Oxon) · MRCGP · FRACGP
Colin is the GP lead behind the Longevity Lab. An Oxford-trained GP with a first-class Physiological Sciences degree and two decades in general practice across the UK and Australia, he focuses on preventative and longevity-focused care. He is Medical Lead at Signal Health, the Perth precision-medicine clinic we partner with, and sits on O2 Active's clinical advisory board. With Colin involved, your testing and programming are chosen and read by a doctor, so your exercise prescription sits alongside genuine medical oversight.
AES · AEP · AUSCEP · Director, O2 Active
Caitlin is the performance lead for the Longevity Lab and Director of O2 Active. An Accredited Exercise Physiologist with over 25 years in allied health, she specialises in musculoskeletal rehabilitation, complex chronic conditions, oncology recovery, women's health and longevity, and sits on the Master of Clinical Exercise Physiology advisory boards at UWA and Curtin and the national Exercise Oncology Professionals Advisory Group convened at Edith Cowan University. Caitlin also leads the performance and functional side at Signal Health. She turns your testing into a supervised, individually dosed program, and makes sure every number is tracked and retested.
Clinician-selected across blood, body and performance, so nothing important is missed and nothing unnecessary is tested.
VO₂ Max and VO₂ Peak, ECG where indicated, and the cardiovascular markers a longevity GP looks for.
ECAL resting metabolic rate and resting fuel use (the mix of fat and carbohydrate your body burns at rest) alongside the blood markers your GP selects.
InBody body-composition estimates on site, tracked regularly under consistent conditions to follow your trends, with gold-standard DEXA available through Signal Health by referral when precision matters, focused on protecting lean muscle as you age.
Force-plate testing, grip strength and movement screening: the markers that predict independence later.
Spirometry to establish a clear baseline and a safe starting point for training.
Further cardiovascular, cognitive or genetic investigations, selected by your GP only where the result may change your care.
Start with Dr Colin Coward. Your history and goals shape what is worth testing.
Your medical and performance baseline across blood, body and capacity.
A clinical plan from your GP and a performance plan from your EP.
Exercise, clinically dosed and progressed on how your body responds.
We retest on a set schedule, so change is measured, not assumed.
Signal Health brings precision medicine: advanced cardiovascular, metabolic, cognitive and hormonal testing, led by Dr Colin Coward. O2 Active brings the exercise physiology that acts on it. Together it's one longevity package, coordinated across both teams.
Longevity care starts with a longevity consult and tailored biomarker and medical testing based on your health history and screening, through your own GP or our Longevity Care partner, Signal Health. O2 Active then runs the exercise physiology side at North Fremantle: VO₂ Peak testing, grip strength, sit-to-stand and balance, InBody body composition and ECAL resting metabolic testing, turned into a supervised program and re-tested at 12 weeks.
The complete Longevity Care program is booked through Signal Health at signal-health.com.au. If your GP is managing your medical care, or you only want the exercise physiology testing and program, book an Initial Assessment with O2 Active directly and we coordinate with your GP by letter.
Cardiorespiratory fitness (VO₂ Peak), grip strength, sit-to-stand and balance, and body composition are the measures with the strongest evidence as markers of long-term health, and all of them respond to properly prescribed exercise. We measure them against age and sex reference ranges, prescribe to them, and re-measure them.
No. The program is built from your own baseline, whatever it is, and progressed on how your body responds. It suits people from their 40s to their 70s and beyond, including those who have not trained for years.
Start with a longevity consult and a proper baseline. We'll show you the numbers, then build the plan to change them.
Delivered in clinic at our North Fremantle flagship, in partnership with Signal Health.
