4km/min is really quick :) I'm not even sure how fast I could run 100m. I could not run a whole kilometre at that speed yet. I'm not young, so I do what I can to stay fit.
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4km/min is really quick :) I'm not even sure how fast I could run 100m. I could not run a whole kilometre at that speed yet. I'm not young, so I do what I can to stay fit.
You are fit sir. Keep up the good work