Carol on October 7th, 2009    1 Comment »

My running is still going super great.  I am thrilled that a pace of 9min/mile now feels pretty easy to me; whereas not too long ago, 10 was still kind of hard to maintain.  I wonder if part of this is due to Iron.   I don’t mean my Iron training plan, tho certainly that has gotten me in the best shape of my tri career.     I am talking about Iron supplements.   Feosol to be exact.

A few weeks ago, I blogged about being dizzy on my bike rides.  One of my theories was that I have had low iron for years.   I resisted taking the Feosol due to stomach issues…instead choosing to eat raisins and beef to boost my iron.    Since the dizziness issue,  I started taking Feosol every day.  The dizziness on the bike gradually declined over the course of a few weeks.   Now, I have absolutely no more dizziness!    And I am feeling so strong in my workouts.  And look where my running is!

Today I did a treadmill threshold workout…here is what I wrote in my BT log:

Treadmill details

Warm up: 5 min @ 4mph
Practice the Pace: 5 min @ 6.6 mph, avg hr 140
Tempo: 20 min @ 7.7 mph, avg hr 160 …had to bump it to 7.8mph to get hr in zone 4. (Dang, now that I look at my hr data, I see that it wasn’t high enough.)
Recover: 2 min @ 4mph
Practice the Pace: 8 min @ 6.6 mph, avg hr 145
Cool down: @ 4mph

6.6 mph = 9:05 min/mile
7.8mph = 7:42 min/mile

I looked back at a similar workout from May, and I was doing the “Practice the Pace” sets at 6mph (10min/mile) and the Tempo set at 7.0 mph (8:34min/mile).   Same heart rates.  That means I’ve gotten alot faster at the same effort level.   More efficient.  It’s all good.

FYI:  I do my treadmill workouts at 1.5 incline, as that’s the lowest setting on my treadmill.    Here is a treadmill speed/pace conversion chart.

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One Comment to “Maybe it’s the Iron”

  1. Rene says:

    Time to eat spinach! I haven’t been on a treadmill in ages, but that sounds like a good way to stay on pace. It’s easy to drift.

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