Measuring your VO2 max often conjures
images of elite athletes suffering on treadmills while
strapped to a mask that looks like something Hannibal
Lecter would wear. Fortunately, you can get a reliable
estimate of your aerobic capacity without the theatrics.
"Simple ways to test your
fitness (no lab required)" outlines two accessible
options, starting with the Cooper test: run as far as
you can in 12 minutes, then plug your distance into a
formula (or
online calculator) to estimate your VO2 max. The second
method is not as well known. It is the Rockport walking
test, which has you walk one mile as fast as possible,
record your heart rate at the finish, and enter that along
with your age, weight, and gender into
a calculator. "Rockport
Walking Test" highlights this as an especially
useful option for beginners or anyone who'd rather not
go all-out every time they want a fitness snapshot. Both
tests are free and repeatable, but sports physiologists
suggest waiting six to eight weeks between attempts to
give your fitness time to actually shift. So why bother
tracking this number at all? This story provides an answer:
"Why
a VO2 Max Test Reveals So Much About Overall Health and
Longevity." VO2 max usually declines roughly
2% per year after age 30, and research has linked an increase
in VO2 max to a 21% lower risk of death over 45 years,
even after controlling for factors like blood pressure
and smoking. Experts recommend at least 120 minutes of
cardio per week, mixing mostly lower-intensity sessions
with one or two harder efforts to push your fitness ceiling
higher.
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