So yesterday I got a chance to see how my Forerunner would work indoors as a HRM. I had a 2 hour long ride in zone 2. The weather was bad in the morning and super windy all day so I opted to hop on the trainer. Whats nice about the Forerunner is that once you program it, it can tell you what zone you are in so you dont have to memorize them.
My legs were a little tired from Saturday's 10 miler. It has been about 5 or 6 months since I have run that many miles. I decided to take it really easy. I think I am going to have to change the resistance on my trainer. It has 3 levels of resistance. I am currently using the middle resistance and ride the whole time in the big ring. I probably should move up to the hardest resistance so I have more options as far as resistance. Given that I have kept the resistance on the trainer steady.
I had the idea to track my relative "power" by coming up with a ratio of speed to cadence. As my speed increases at the same cadence (by pushing a smaller cog in the back) while the resistance stays the same (similar to riding a constant course) my power output must be increasing. How realistic this is, I dont know, but with all other factors staying relatively constant, there seams to be a correlation. So as I was saying, I was surpised at as low of a cadence I was pedaling, my avg speed was actually decent. So for instance yesterday my cadence was a low 75 with an average speed of 23.13 for a ratio of .308. My ride two weeks ago (which was only 90 minutes) was 24.04 avg speed at an avg cadence of 88. That days ratio was .273. If this method is anywhere close to valid, it shows I am making some definite improvement in my power output. Again this is something I thought up, and my be a bunch of hot air, but it seems to make sense. If you did the same course week after week, and were able to increase your speed at the same cadence, you have increased your power output. So I assume the same would hold true on the trainer
Today was a shortened swim. This week is a recovery week. I was happy to see my recovery time on the intervals back up to 45 seconds. Today's main set was an easy 4*100 followed by Sprint Intervals 5*75. I am definitely seeing improvement as my times continue to come down on the 75s. I will be happy when I can do them all under a minute. Today's splits were (56.88,58.36,59.72,1:02.62,1:01.43)
So as I said in the title, my new Garmin Forerunner 305 rocks. I like the fact that when I am on the trainer, the treadmill, or doing a spin class, I can wear my Garmin and get a readout of my HR throughout the workout. The next step is to do some Max HR and Threshold self tests to get a better idea of my fitness and be better able to manage my HR Zones
Sun OCN:2 Hours 45.38 23.13 mph
Mon OSN:1425 Yards