I've recently purchased a Powertap SL. I've been riding with it for almost 3 weeks. My plan for the 1st month of use is to "ride and record" - i.e. just do my normal riding and download the data to CyclingPeaks before I undertake any of the more structured test outlined by J. Friel, A. Coggan, etc.
The one thing that I am confused about, however, is based on the the rides I have done to date, what value I should use for setting my initial Threshold Power. Within the CyclingPeaks program I've observed three different values for power depending on whether I look at: Average Power (my Powertap is set to include zeros), Normalized Power from the ride summary data, or Mean Maximal Normalized Power. Below are the values I've observed for each (based on about 6 rides):
Avg Power: 30min = 235, 60min = 220
Normalized Power from Ride Summary: 30min = 275, 60min = 271
Mean Maximal Norm. Power: 30min = 289, 60min = 274
I primarily ride on rolling terrain and, as mentioned, have the Powertap set to include zeroes so I understand why Avg Power is lower, but I'd love to get some feedback as to what others would recommend I use to set my initial Threshold Power level?
More background: I'm a 34 yr old, relatively new racer (2nd yr), and occasional triathlete. Height 5"11', Weight 160lbs. I have two small children at home so I don't get to train as frequently as most of my teammates - so my intent with purchasing a Powertap is add more focus to my training, allowing my to train more efficiently and effectively in the time I do have.
The one thing that I am confused about, however, is based on the the rides I have done to date, what value I should use for setting my initial Threshold Power. Within the CyclingPeaks program I've observed three different values for power depending on whether I look at: Average Power (my Powertap is set to include zeros), Normalized Power from the ride summary data, or Mean Maximal Normalized Power. Below are the values I've observed for each (based on about 6 rides):
Avg Power: 30min = 235, 60min = 220
Normalized Power from Ride Summary: 30min = 275, 60min = 271
Mean Maximal Norm. Power: 30min = 289, 60min = 274
I primarily ride on rolling terrain and, as mentioned, have the Powertap set to include zeroes so I understand why Avg Power is lower, but I'd love to get some feedback as to what others would recommend I use to set my initial Threshold Power level?
More background: I'm a 34 yr old, relatively new racer (2nd yr), and occasional triathlete. Height 5"11', Weight 160lbs. I have two small children at home so I don't get to train as frequently as most of my teammates - so my intent with purchasing a Powertap is add more focus to my training, allowing my to train more efficiently and effectively in the time I do have.