5.3 km
427 m
8.1 %
###### Best efforts
1. 19:46, April 2, 2011
2. 22:52, March 31, 2011
3. 23:17, March 23, 2012

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%

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
April 2, 2011 19:46 15.9 km/h 421 m 361 W 336.0 W 4.8 1278
Dec. 10, 2012 26:33 89.0% 11.9 km/h 426 m 304.0 W 3.2 963
Feb. 24, 2012 27:40 88.5% 11.5 km/h 427 m 291.9 W 3.1 926
March 1, 2012 28:08 85.3% 11.3 km/h 434 m 290.9 W 3.1 926
March 31, 2011 22:52 13.8 km/h 422 m 306 W 287.2 W 4.1 1107
Jan. 25, 2012 27:15 84.1% 11.8 km/h 430 m 279.5 W 3.3 947
Nov. 8, 2012 23:43 79.3% 13.5 km/h 416 m 279.1 W 3.6 1052
Jan. 31, 2012 26:03 84.6% 11.9 km/h 425 m 278.6 W 3.2 979
Jan. 23, 2012 26:19 82.1% 11.7 km/h 427 m 275.3 W 3.2 974 Rolig start, terskel etterkvart.
Dec. 13, 2011 28:03 80% 11.3 km/h 430 m 270.0 W 3.0 920
March 23, 2012 23:17 85.4% 13.5 km/h 420 m 270 W 266.5 W 3.9 1082
Dec. 22, 2013 27:17 82.5% 11.6 km/h 431 m 266.5 W 3.1 948
Dec. 16, 2012 24:44 82.4% 12.5 km/h 421 m 266.2 W 3.5 1021
Dec. 13, 2012 30:25 82.7% 10.4 km/h 430 m 265.9 W 2.8 848
Jan. 24, 2012 28:01 81.5% 11.1 km/h 429 m 259.5 W 3.0 919
Jan. 7, 2012 30:29 78.6% 11.8 km/h 420 m 257.4 W 3.2 827
Jan. 9, 2011 29:39 88% 10.8 km/h 430 m 255.5 W 2.9 870
Nov. 11, 2012 26:06 75.3% 11.9 km/h 424 m 254.9 W 3.3 975
Nov. 13, 2012 26:36 74.2% 11.7 km/h 428 m 251.0 W 3.2 965
Dec. 14, 2013 28:36 82% 11.1 km/h 424 m 249.6 W 3.0 890
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