Secret sauce in GoldenCheetah, we are open and transparent with your data. We do not 'silently' fix the data for you. We NEVER attempt to interpret data anomalies - if the results are not as you would expect In addition, if there are anomalies in your data, with large gaps or even time goingīackwards, this will drastically affect GoldenCheetah's calculations. OtherĪpplications choose to ignore or smooth segments of short duration. In GoldenCheetah we always calculate AP,TSS etc including stop time. However, how each application treats pauses and stops or loss of data accounts for mostĭifferences. Simple and not prone to difficulty in implementation. Same way in GoldenCheetah, Garmin Connect, TrainingPeaks etc. The algorithms for calculating TSS, AP etc are static. TSS or average power different in GoldenCheetah to Garmin Connect? If this is of great concern you can adjust the hysteresis value in preferences under the Why is elevation different in GoldenCheetah to my other training software / website?ĭifferent programs will use different hysteresis values to smooth the small changes inĪltitude. (date range) in the Home View and can set the Starting LTS. That way it is re-usable in a number of places. You can seed the starting CTL (we call it LTS, for long term stress) when you define a But we do recognise the ongoing debate regarding physiological stress from We provide this functionality at user request - we do not endorse the concept of multipleĬP values. But this allows you to make manual adjustments. We do not have a concept of 'separate' Cps for different purposes - you will need to specify the CP when the data is imported into GC. Alternatively, you can select Activity>Save Activity from the top menu. When you change CP value, always right click on the activity for which you have changed CP value and select Save Changes. Click Type drop down menu and select Double. Double click Field column and write CP. Double click Screen Tab column and write Metric. Click the plus symbol (down and right).If you have deleted the "CP" field in the Activity>Summary>Metric menu, follow these steps to create it (you can follow exactly the same steps for "FTP" field): The value you wish to use for the ride in question. We allow you to override the CP value for a specific ride by setting the "CP" field to Can I set a different CP/FTP for different reasons e.g. (Thanks for Jon Hill from the Golden Cheetah Users mailing list for this example). Would in fact be lower that your best average for a continuous 30minutes and 30 seconds. Then another massive 30 second effort, then your best average for a continuous 30 minutes If, for example, you did a massive 30 second effort, followed by freewheeling for 29:30 Why does my CP chart show higher watts for a longer duration?Ī higher power average for a longer time is possible if an effort has been "book ended". If you are running a version prior to v3.3 your CP value will be used to calculate 'Coggan' and all If you do that, the 'Coggan' metrics will use Values for CP and FTP in the athlete power zones settings. In GC we compute TSS and BikeScore using your 'CP' value, but from v3.3 you can maintain separate Often users will consider the two as the same. But since it is very difficult for an athlete to maintain the desired intensity FTP 'reality' tends to result in a number that is much lower than CP 'theory'. In practice, CP and FTP are usually close to each other. There is no formal model or protocol for establishing it, most people use rules of thumb like FTP is 95% of 20 minute power, or they use the best power from a 40km TT. Functional Threshold Power (FTP) is an estimate of the power an athlete can sustain for about 60 minutes or a 40km TT. It is calculated using a model and time to exhaustion tests between 2-3 and 12-15 minutes. For more info on xPower see Dr Skiba's paper on BikeScore What is the difference between CP and FTP?ĬP represents the power an athlete can sustain for a very long time, without fatigue, in theory. In practice, NP and xPower are largely the same, whilst Daniels EqP place much higherĮmphasis on upper intensity work. The ride and therefore the training stress of the ride. This is so you can quantify the intensity of They all serve the same purpose - to express the variable power you have generated overĪ given period of time as a single value. METRICS What is the difference between xPower, NP and Daniels EqP?
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