part 2....
Felt good actually. Quads, calves were firing with glutes. Had my form. Pace fell in line well. This was my first run with the new Garmin 620. The old Garmin had been really off with its GPS in many instances and the HR monitor had not worked with it in some time. I did a road loop (that damm loop at North Park) to test the GPS (the trails were also completely iced over from mountain bikes). The GPS appears flawless, which is awesome. The heart rate was still really spiked for the first mile, (which I guess is a function of me starting too quickly after it starts reading maybe?- I have this happen with every HR monitor. It calms after about a mile) but got back to a normal progression throughout the run. I was wondering what my runs were costing metabolically. I felt like this one was a solid run, but in control. I suspected the HR was higher then I was feeling and I was right. 175 is definitely in the upper range for me. Not an intensity I could have kept up for ever, which also matched the fatigue in my glutes (which is going to happen no before 5 miles no matter what the intensity) and teh tightening of my right calf/ foot.
strava:
http://www.strava.com/activities/107644348Garmin Connect has the new data that the 620 records such as cadence:
http://connect.garmin.com/activity/432822759Avg Run Cadence: 189 spm
Max Run Cadence: 199 spm
Avg Vertical Oscillation: 9.0 cm
Avg Ground Contact Time: 217 ms
Avg Stride Length: 1.40 m
are the new metrics. I am excited about these as they represent some of the weaknesses of my previous form. Cadence has been my main focus, but it intertwines firing my glutes and running under my hips as they effect all these metrics. Without getting into any further research her is Garmin's background data:
Color Gauges and Running Dynamics Data
The running dynamics screen displays a color gauge for the primary metric. You can display cadence, vertical oscillation, or ground contact time as the primary metric. The color gauge shows you how your running dynamics data compares to those of other runners. The color zones are based on percentiles.
Garmin has researched many runners of all different levels. The data values in the red or orange zones are typical for less experienced or slower runners. The data values in the green, blue, or purple zones are typical for more experienced or faster runners. Less experienced runners tend to exhibit longer ground contact times and lower cadence than more experienced runners. However, taller runners typically have slightly slower cadences and slightly higher vertical oscillation. Go to
www.garmin.com for more information on running dynamics. For additional theories and interpretations of running dynamics data, you can search reputable running publications and websites.
Color Zone Percentile in Zone Cadence Range Vertical Oscillation Range Ground Contact Time Range
Purple > 95 > 185 spm < 6.7 cm < 208 ms
Blue 70–95 174–185 spm 6.7–8.3 cm 208-240 ms
Green 30-69 163-173 spm 8.4-10.0 cm 241-272 ms
Orange 5-29 151-162 spm 10.1-11.8 cm 273-305 ms
Red < 5 < 151 spm > 11.8 cm > 305 ms
I did feel like my form was firing today, but I was surprised with how well my cadence measured. Ground contact time has always been an issue for me and that is, today, the only metric that was still not strong (vertical oscillation is high as well, but that is a function of many things and I believe will settle into the right place as my efficiency goes up). It will be interesting to see how these metrics change over time.
There are plenty of other measures that Garmin connect calculates (Recovery time, training effect, VO2 max, and sure calories etc...) and the measures themselves are fairly useless. They are more interesting in finding out what type of algorithm Garmin uses to come up with them and picking those pieces of interesting data. Guess what, I am in the 100th percentile of VO2 maxes for my age group... when looking at the sub max algorithm they used today to come up with the 56 ml/kg/ min. might be interesting though.