Get the app
The evidence base

Every threshold, traced to its source.

Verve is built so you come to know your own readings. Every number it shows you is one a clinician would use, and every threshold names the study it came from.

citations
63citations
topics
21topics
body markers
21body markers
Start hereThe whole of cardiorespiratory fitness, on one mapThe American Heart Association’s 2016 statement is 30 pages of prose. Here it is as 226 connected ideas: what fitness measures, what it predicts, how it is tested, how it improves. Open a branch to read the claim; every branch Verve acts on is marked.Open the mapPan, zoom, expand · Ross et al. 2016green = a branch Verve measures

Every topic, by subject

Four subjects, one topic per page. Open a subject to read it in order, or go straight to a topic.

Each topic opens with what the app shows you, then the studies behind it.

Fitness5 topics · 15 citations
  1. 1METs vs MET-hoursOne is how hard, the other is how much
  2. 2Cardiorespiratory fitnessThe five tiers, and why they are read against your own age and sex
  3. 3Test your CRFWhich test you are offered, and why it might not be the hard one
  4. 4How accurate each test isWhat r ≈ 0.90 means, what the stars mean, and where each test stops working
  5. 5The run protocolsWhat the app’s checklist is short for
Movement7 topics · 16 citations
  1. 1Weekly volumeHow much per week, and why the third flag sits well above 150 minutes
  2. 2Zone 2 trainingThe weekly target, and the personal heart-rate band behind it
  3. 3Strength trainingWhere the 60 minutes a week comes from, and why the app no longer draws it as a bar to clear
  4. 4A workout, as Verve reads itWhat the page keeps, what it only reads, and why one session shows one MET figure
  5. 5Steps & cadenceDaily step tiers and cadence zones
  6. 6Movement balanceHow Verve reads your day beyond workout minutes
  7. 7Physical activity levelHow active your whole day is, and how much of that number to trust
Sleep & heart5 topics · 23 citations
  1. 1The morning readHow the four Today tiles are coloured, and where each line comes from
  2. 2Sleep timingFour ways to read one bedtime diary
  3. 3Sleep and trainingWhat the Guide’s sleep line is, and what it refuses to claim
  4. 4Resting heart rateMeasured against your own normal, not a population range
  5. 5Heart rate recoveryOne cited line, and why there is no second one
Body4 topics · 9 citations
  1. 1Heart healthApoB · LDL-C · Lp(a) · hs-CRP — screening bands, not treatment targets
  2. 2Body phenotypingMetabolic syndrome screening, beyond BMI
  3. 3Muscle healthWhy grip strength is in a fitness app at all
  4. 4Intrinsic capacityWhy grip, walking speed, chair stand and SPPB belong in the same room — and which parts of the picture Verve does not measure

Inside Body phenotyping: the 21 body markers, each with its bands and how to measure it.

Every address the app links to keeps working: this page forwards the old anchor to the topic’s page.