Despite Not Running For A Week, I Might Have Improved My Running Fitness

After taking a week off from running due to a bum hamstring, I reeled off three days of short runs in a row, none over 3 miles. Felt fine.

Two days after that last run, I ran over 5 miles home from work, despite not having run farther than 3.5 miles in over a month. Felt fine.

How, despite not running double digit miles in a week since mid-June, despite losing an entire week after a month of minimal running… was I able to reel off 12 miles in 5 days?

Okay, I left out all the cross training I did in the gym. Sure, I also ate well and got good rest. But, along with the 5 hours of cross training I did during the week “off” from running, I’ve been cross training quite a bit outside of any running. This is in large part because I’m about to move cross country, and with no goal race on the horizon I want to take it a bit easier while focusing my energy on cleaning up and packing.

At the same time, I’ve been ramping up my weekly cross training akin to a runner ramping up their mileage ahead of a goal race. Of course, the cross training is not as physically intense as regular running. And that’s a key reason I’ve been able to do so much of it in the interim.

The week after my last double digit mile week, I logged 2 hours of non-running cross training. The week after that, 2.5 hours. The week after that, 3.8 hours. And sure, I was not feeling great the week I got hurt, so I only logged 2 hours. But, with no ability to run, I logged extra time cross training and got 5 hours that week.

In this past week, I logged 5.8 hours of cross training in addition to 16.2 total miles, close to 8 hours total. Factoring in the heart rate training and calorie burn of the cross training, I finished last week trained to a level equivalent to about 24 miles of running a week.

My aerobic fitness development didn’t stall as my mileage dropped to lows unseen since before I began seriously running. I still logged easy/moderate efforts on the ARC Trainer, and easy sessions on the spin bike. Plus, this ignores all the day to day walking I have to do while living in Chicago (for now).

And because of this it’s certainly possible that, despite not running for a full week, my running fitness may have improved. Sure, a week of relative rest from running helps too. But I not only didn’t lose aerobic endurance… I might have gained some.

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