A friend recently did an hour on the velodrome in an attempt to break the old hour record. When conditions aren't constant then the fastest way around a course is not constant power but varying power. The only time a constant power output is time-minimizing is when the conditions are constant. The last time I did a one hour TT, it was on a rolling course with a little bit of head, tail, and cross wind. Well, I'm not sure I'd say 'a watt or two.' I'd say a few watts.

You can show the theoretical CP curve, based on one of GoldenCheetah's models, by going to the CP Model tab in the configuration, selecting one of the available models and either using the default parameters (of the model) or adjusting them to your needs. Shade Intervals - only for single activities on the 'Activities' view - shows separate curves for an interval, if you select it on the 'Side Bar' - multiple selection of intervals is possible.Show curve heat - shows the number of activities, whose maximal power duration is within 10% of the best.Show as percentage - only for single activities on the 'Activities' view - if checked, it shows not the absolute values, but the percentage of the actual activity value in relation to 'Bests'.Show Bests- if checked, shows the 'MMP' curve (the best value for point of duration of the X-Axis) for the 'Data Series' selected.Show Grid- if checked, the plot area get's a grid for easier analysis.Only has effect for 'Data Series' = 'Power'. Power Shading- if checked, shows the power zones, along the curve.Important to know is that you also need to check 'Show Bests' to show the curve for any of the 'Data Series' - otherwise you might see only the 'CP Model' curve (for 'Data Series' = 'Power', or an empty chart for any other 'Data Series'). Data series- here you have multiple sets of data which can be analyzed in the 'MMP' curve style.

Date Range - define chart specific 'Date Range' settings Note: On the 'Activities View' the 'Date Range' parameter are a drop-down list, where you can select 'Date Range' which are then considered in the 'Bests' calculation.

Filter - define chart specific 'Search/Filter' criteria.

Knowing which combinations are supported (and also which not) - is important to maximize the use of the chart.

Here only the handling / available option are described.Īs in most other charts, also here you have several options, and the options partly relate to each other. This curve, also called 'MMP' curve is again one of the central and assumed 'Standard' ways for analyzing power.

Goldencheetah 1 min max for activity