VO2 Max Scores and Fitness Scores on Fitbit, Garmin, and Other Fitness Trackers: Are They Useful?

Fitbit, Garmin, the Apple Watch and other fitness trackers can give us "fitness scores" usually based on the concept of VO2 max, but what is VO2 max and are the scores really important? I'm a family doctor (GP) in the UK and love everything about digital health, here's my take!

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KEY POINTS IN VIDEO:
00:00 Introduction
00:39 What is VO2 Max? (An explanation)
02:17 How VO2 Max is calculated by Fitbit, Garmin and other wearable fitness devices/trackers
03:28 How accurate is the data on VO2 Max from Fitbit/Garmin and other fitness wearables (data accuracy)
04:27 How exercise increases your VO2 Max
05:45 How to interpret your VO2 Max score – what it means

VO2 MAX RESOURCES:
Research paper referenced: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6789195/pdf/mh-05-2019.09.07.pdf
For scientists, here is an interesting review on the subject:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2375567/

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