Tuesday 20 September 2011

Intervals

I dodged the club's timed run due to injury concerns and instead ran 20 minutes of intervals (3 minutes on, 2 minutes off) on the grass football pitch. Possibly went off too fast on the first one as the session was a real struggle and I had to shorten it from the planned 30 minutes. HR supposedly peaked at 187, which looks dubious.

3.08 miles in 20:01, average pace 6:30/mile, HR 162
HR zones: 2.3%, 10.7%, 27.7%, 35.6%, 23.6%

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