I'm starting to do intervals based on power rather than HR now that my Powertap is up and running nicely.
So far, I find that on the road rather than the trainer, it's very hard (impossible, really) to keep on a target power level. I understand that I can work within a band (say if the target is 250w, I can try to stick with a normal distribution of power around 225-275w) and theoretically it'll work out to ~250w.
But... do you power trainers observe the current power on the PT or do you observe the average, so as to pick it up if the average falls and vice versa? Do you run long lags on the power reading in the first place? I currently have mine at 3 secs. Perhaps 15 would be better to smooth it out and make it more managable?
So far, I find that on the road rather than the trainer, it's very hard (impossible, really) to keep on a target power level. I understand that I can work within a band (say if the target is 250w, I can try to stick with a normal distribution of power around 225-275w) and theoretically it'll work out to ~250w.
But... do you power trainers observe the current power on the PT or do you observe the average, so as to pick it up if the average falls and vice versa? Do you run long lags on the power reading in the first place? I currently have mine at 3 secs. Perhaps 15 would be better to smooth it out and make it more managable?