0.5 km
17 m
3.4 %
###### Best efforts
1. 48, July 31, 2012
2. 49, Aug. 23, 2012
3. 49, July 6, 2012

Tur Tid Puls Fart Stigning Effekt Power (est) Gj. effekt/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
July 31, 2012 48 90% 37.6 km/h 21 m 682.2 W 8.6 1575
Aug. 23, 2012 49 89.2% 34.7 km/h 17 m 466.0 W 7.3 1249
July 6, 2012 49 86.5% 37.2 km/h 21 m 620 W 664.6 W 7.8 1543
April 14, 2014 01:16 69.2% 23.3 km/h 18 m 253.3 W 4.0 853
July 20, 2013 01:28 68.2% 18.6 km/h 21 m 213.5 W 3.3 859
Sept. 19, 2014 01:34 78.5% 19.9 km/h 18 m 191.6 W 3.0 689
May 15, 2014 01:38 66.7% 25.4 km/h 0 m 106.1 W 1.7
May 20, 2014 01:40 71.5% 18.1 km/h 19 m 216.4 W 2.8 684
Aug. 17, 2014 01:40 63.6% 18.5 km/h 17 m 175.3 W 2.7 612
Nov. 18, 2012 01:42 79% 17.7 km/h 11 m 243 W 145.4 W 3.1 388
Nov. 18, 2012 01:43 74.4% 18.4 km/h 19 m 183.9 W 2.9 664
Aug. 17, 2014 01:43 83% 17.4 km/h 21 m 224.5 W 3.0 734
May 13, 2014 01:46 76.5% 17.0 km/h 19 m 198.5 W 2.6 645
May 14, 2013 01:48 74.9% 17.2 km/h 21 m 191.3 W 2.9 700
April 23, 2014 01:51 77% 16.2 km/h 19 m 187.0 W 2.5 616
June 3, 2014 01:52 74% 17.6 km/h 19 m 197.9 W 2.6 611
Aug. 7, 2013 01:53 78% 17.8 km/h 17 m 185.1 W 2.3 542
Sept. 13, 2014 02:00 85.5% 20.5 km/h 17 m 178.2 W 2.3 510
July 2, 2013 02:04 77% 15.3 km/h 21 m 196.9 W 2.5 610
July 5, 2015 03:01 9.4 km/h 50 m 216.8 W 3.4 994
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