VO2 max has moved from a lab-only measurement to a number many members now see directly on their fitness wearables, often without a clear sense of what it actually represents.
It measures how efficiently the body uses oxygen
In simple terms, it reflects how much oxygen the body can use during intense exercise — a higher number generally reflects better cardiovascular fitness.
It improves with consistent cardio training, not overnight
Meaningful VO2 max improvement takes sustained training over months, which is worth setting as a realistic expectation for members newly paying attention to the number.