Garmin Forerunner 955 Owners Manual - Page 144
FTP Ratings, Males, Watts per Kilogram W/kg
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FTP Ratings These tables include classifications for functional threshold power (FTP) estimates by sex. Males Watts per Kilogram (W/kg) Superior 5.05 and greater Excellent From 3.93 to 5.04 Good From 2.79 to 3.92 Fair From 2.23 to 2.78 Untrained Less than 2.23 Females Superior Excellent Good Fair Untrained Watts per Kilogram (W/kg) 4.30 and greater From 3.33 to 4.29 From 2.36 to 3.32 From 1.90 to 2.35 Less than 1.90 FTP ratings are based on research by Hunter Allen and Andrew Coggan, PhD, Training and Racing with a Power Meter (Boulder, CO: VeloPress, 2010). Wheel Size and Circumference Your speed sensor automatically detects your wheel size. If necessary, you can manually enter your wheel circumference in the speed sensor settings. The tire size is marked on both sides of the tire. You can measure the circumference of your wheel or use one of the calculators available on the internet. 136 Appendix
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