Best efforts
  1. b_knutsson 17:56, June 21, 2012
  2. Samund 18:20, Aug. 19, 2012
  3. Samund 18:27, May 24, 2012


GPX File


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%
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 June 21, 2012 17:56 90.3% 28.4 km/h 241 m 296.4 W 4.6 806
Samund Aug. 19, 2012 18:20 89% 28.0 km/h 335 m 323 W 407.4 W 4.1 1096
Samund May 24, 2012 18:27 91% 27.9 km/h 334 m 402.9 W 5.1 1086
Samund July 29, 2012 18:45 88% 27.4 km/h 339 m 319 W 397.2 W 4.0 1085
Samund June 27, 2012 18:52 89.5% 27.3 km/h 341 m 325 W 395.6 W 4.1 1084
b_knutsson Sept. 20, 2011 19:17 90.8% 26.7 km/h 248 m 269.9 W 4.2 772
Samund June 15, 2012 19:20 87.5% 26.6 km/h 336 m 377.6 W 4.8 1043
Samund Sept. 20, 2011 19:52 89.5% 25.9 km/h 340 m 386.0 W 4.5 1027
Samund Aug. 2, 2011 20:28 90.5% 25.2 km/h 346 m 358.9 W 4.5 1014
Samund July 12, 2012 20:46 84% 24.8 km/h 343 m 286 W 346.3 W 3.6 991
Samund April 10, 2012 21:13 88.5% 24.5 km/h 352 m 344.5 W 4.4 995
b_knutsson June 21, 2012 21:15 83.6% 25.5 km/h 242 m 243.7 W 3.8 683
Samund July 2, 2011 21:27 86.5% 23.9 km/h 343 m 333.2 W 4.2 959
Samund July 2, 2011 21:43 87% 24.4 km/h 349 m 338.6 W 4.2 964
b_knutsson March 24, 2015 21:44 83.1% 23.7 km/h 237 m 218.4 W 3.4 654
b_knutsson Oct. 23, 2012 21:47 85.1% 23.3 km/h 248 m 219.9 W 3.4 683
b_knutsson May 22, 2012 21:48 87.7% 25.5 km/h 233 m 239.2 W 3.7 641
Bjornevik May 12, 2012 22:02 84.3% 22.7 km/h 249 m 242.6 W 3.2 678
Samund March 4, 2012 22:10 88% 23.2 km/h 344 m 316.4 W 4.0 931
Samund Aug. 5, 2011 22:28 89% 22.9 km/h 346 m 315.5 W 3.9 924
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