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Oct 28, 2017 at 22:45 comment added user2705196 I seem to remember that Armstrong's maximal heart rate was 156. Which is impressive given how challenging and scary the process was...!
Nov 7, 2015 at 18:16 history edited Russell Borogove CC BY-SA 3.0
added 75 characters in body
Nov 7, 2015 at 18:07 history answered Russell Borogove CC BY-SA 3.0