Best efforts
  1. b_knutsson 06:31, May 1, 2012
  2. b_knutsson 07:06, June 19, 2012
  3. b_knutsson 07:08, June 6, 2012


GPX File


Trip Duration Avg HR Avg Speed Ascent Power Power (est) Avg power/kg VAM

Velocity Ascended, Metres per hour Vm/h usually referred to as VAM, coined by Dr Michele Ferrari is the speed of elevation gain per hour in Metre per hour. This is a term used in cycling to rate how fast an individual gains elevation while climbing an incline. Ferrari also stated that every one percent increase in average gradient increases VAM by 50. For example, a 1650 VAM on a climb of 8 percent average grade is a performance equivalent to a VAM of 1700 on 9 percent average grade. Ambient conditions (e.g. friction, air resistance) have less effect on steeper slopes (absorb less power) since speeds are lower than on gentler slopes
The acronym VAM is not truly expanded in English, where many think the V stands in some way for vertical, and the M represents meters, for instance "Vertical Ascent Meters/Hour." Ferrari says,
I called this parameter Average Ascent Speed (‘VAM’ in its Italian abbreviation from Velocità Ascensionale Media).
A direct translation of "velocità ascensionale media" is "mean (average) ascent velocity" leading to an expansion of the acronym in English as Velocity, Ascent, Mean.
VAM is calculated the following way: VAM = (metres ascended x 60) / Minutes it took to ascend
A standard unit term with the same meaning is Vm/h, vertical meters per hour; the two are used interchangeably.
The relationship between VAM and relative power output is expressed as follows: [3]
Relative power (Watts/kg) = VAM (meters/hour) / (Gradient factor x 100)
This gradient factor ranges between 2.6 for a gradient of 6% and 3.1 for a gradient of 11%
To work out the gradient factor take 2 + (% grade/10)

Examples:

1800+ Vm/h: Lance Armstrong - and Marco Pantani of olden days
1650-1800 Vm/h: Top 10 / Tour de France GC or mountain stage winner.
1450-1650 Vm/h: Top 20 / Tour de France GC; top 20 on tough mountain stage.
1300-1450 Vm/h: Finishing Tour de France mountain stages in peloton
1100-1300 Vm/h: The Autobus Crew

Comment
b_knutsson May 1, 2012 06:31 89.7% 24.0 km/h 114 m 298.3 W 4.7 1050
b_knutsson June 19, 2012 07:06 84.6% 21.8 km/h 122 m 275.2 W 4.3 1031
b_knutsson June 6, 2012 07:08 84.1% 21.6 km/h 119 m 272.4 W 4.3 1001
b_knutsson April 16, 2015 07:19 81.5% 20.7 km/h 106 m 233.2 W 3.6 869
Samund July 6, 2012 07:43 79.5% 19.7 km/h 100 m 297 W 253.0 W 3.8 778
b_knutsson June 27, 2015 08:04 78.5% 19.0 km/h 0 m 210 W 53.6 W 3.3
Samund Sept. 21, 2011 08:23 80.5% 18.1 km/h 96 m 233.7 W 2.7 687
b_knutsson July 4, 2015 08:34 71.3% 18.1 km/h 0 m 195 W 48.6 W 3.0
b_knutsson April 4, 2014 08:44 75.4% 17.7 km/h 126 m 222.3 W 3.5 866
b_knutsson March 11, 2015 08:51 73.3% 17.0 km/h 127 m 208.0 W 3.2 861
b_knutsson Aug. 29, 2014 08:58 73.8% 17.1 km/h 123 m 210.1 W 3.3 823
b_knutsson Aug. 26, 2013 09:10 69.7% 16.6 km/h 119 m 197.1 W 3.1 779
b_knutsson March 20, 2013 09:11 76.4% 16.8 km/h 128 m 206.3 W 3.2 836
b_knutsson April 3, 2015 09:13 75.9% 16.2 km/h 129 m 200.4 W 3.1 840
b_knutsson Oct. 24, 2012 09:18 73.8% 16.3 km/h 118 m 188.6 W 2.9 761
Samund July 2, 2012 09:19 76% 16.3 km/h 101 m 236 W 201.6 W 3.0 650
b_knutsson Feb. 16, 2013 09:19 77.4% 16.5 km/h 129 m 208.9 W 3.3 831
b_knutsson Feb. 20, 2013 09:24 70.8% 16.7 km/h 125 m 200.6 W 3.1 798
b_knutsson March 14, 2014 09:29 71.3% 16.3 km/h 27 m 74.1 W 1.2 171
b_knutsson July 21, 2013 09:30 65.6% 16.0 km/h 123 m 194.4 W 3.0 777
more