Fit for Longevity
VO2max is the most cited biomarker in longevity. Measure it directly, along with resting metabolism and fat oxidation, what the body burns at rest and which fuel it burns under load, without sending anyone to a lab.
Measure the key metric
Almost every longevity protocol treats VO2max as a headline number, but direct measurements are rare. Estimates from a smartwatch or a step test are convenient, and they are estimates: they infer oxygen uptake from heart rate instead of measuring the oxygen and carbon dioxide actually moving through the lungs.
Direct measurement used to mean a metabolic cart in a dedicated room, which is why it stayed with elite sport and clinical research. SplendoMonitor puts the same measurement on portable Bluetooth sensors and an iPad, so it can happen in your own consulting room, at whatever interval you want to retest.
And once the analyzer is on, VO2max is only one of four things it can tell you.
What you can measure
One set of sensors, an assessment for each question. Each produces its own report, and each can be repeated as often as you want to see whether an intervention worked.
VO2 Max Ramp
The biomarker the studies further down this page keep returning to, and one a client can actually move. Measured breath by breath, so a repeat test after six months shows whether the program did anything. The same ramp also anchors their training zones to measured physiology rather than a percentage of an estimated maximum heart rate.
Tells you: VO2max, Breathing technique and efficiency, Ventilatory thresholds and zones.
VO2 1MAO
Maximal Anaerobic Output and fatigue resistance, giving quick insight into Maximum Oxygen Uptake and breathing technique and efficiency at failure
Tells you: VO2max.
Metabolic profile
Metabolic flexibility, measured rather than assumed: whether this client oxidizes fat efficiently and at which intensity. It is the half of a longevity program that dietary advice usually guesses at.
Tells you: Substrate utilization, Ventilatory thresholds and zones.
Resting metabolism
How much energy the body burns at rest. A resting test, no exercise involved, and the baseline that makes a nutrition conversation concrete instead of generic.
Tells you: Resting metabolic rate.
How it fits a longevity practice
The assessment has to survive contact with a real schedule and a real room, not just a research protocol.
Your own staff can run it
The app guides every sensor and then the protocol itself, so the person running an assessment does not need to be a physiologist. Sub-maximal options also mean clients unsuited to an all-out effort still get real metabolic data.
A report clients understand
Ready once the data has synced, showing each part of the oxygen cycle separately and how performance compares to expected. Built to be read together, not filed.
Runs in your own space
Wireless, wearable sensors and an iPad. No dedicated room, no fixed cart, no power outlet. A consulting room or a corner of a gym floor is enough.
Repeatable, so change is visible
The value of a biomarker is the trend. Fixed protocols and a stored history per client mean the retest in six months is a comparison, not a new experiment.
Pay as you go
A fraction of what a metabolic cart costs up front, then a flat fee per assessment. The sensors are bought once, from us or from anyone else.
Measure it instead of estimating it
See what a full metabolic assessment looks like for your own clients.
SplendoHealth
Guided from setup to report
SplendoMonitor connects over Bluetooth to metabolic analyzers, heart rate and tissue saturation sensors, and ergometers from different manufacturers, then stitches their signals into a single assessment with one timeline and one report.
SplendoMonitor is a Cardiorespiratory & Metabolic fitness assessment tool. It is not a certified medical device and is not intended for diagnosing, treating, or monitoring medical conditions.