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  1. GeirEvensen 06:42, 6. mai 2012
  2. andreas 07:38, 2. mai 2010
  3. jleknes 07:43, 27. mai 2012


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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

Kommentar
GeirEvensen mai 6, 2012 06:42 87,9% 33,4 km/t 100 m 315 W 451,1 W 3,8 896
andreas mai 2, 2010 07:38 90,5% 29,2 km/t 102 m 324 W 385,5 W 3,5 802
jleknes mai 27, 2012 07:43 84,2% 29,3 km/t 96 m 351,1 W 4,2 746
kikke3 mai 27, 2012 07:50 94,4% 28,2 km/t 92 m 305,9 W 4,0 705
andreas mai 8, 2011 07:53 88,5% 28,3 km/t 97 m 350,3 W 3,9 738
andreas mai 6, 2010 08:05 85,5% 27,6 km/t 99 m 347 W 346,8 W 3,8 735
andreas aug. 17, 2012 08:14 78,5% 27,2 km/t 97 m 317 W 324,9 W 3,6 707
lars juni 23, 2012 08:19 83,2% 26,8 km/t 95 m 330,0 W 3,5 685
chrissol juni 20, 2011 08:20 82,1% 26,7 km/t 144 m 335,4 W 5,1 1037
marhau juli 30, 2012 08:29 26,2 km/t 97 m 277,3 W 3,7 686
lars mai 6, 2010 08:30 79,6% 26,6 km/t 99 m 322,1 W 3,5 699
lars aug. 29, 2009 08:30 79,6% 26,2 km/t 96 m 288,7 W 3,6 678
andreas juni 12, 2010 08:38 84,5% 25,9 km/t 98 m 312,1 W 3,4 681
lars mai 13, 2010 08:39 78,0% 26,0 km/t 98 m 310,6 W 3,4 680
andreas mai 13, 2010 08:40 82% 25,7 km/t 99 m 311,5 W 3,4 685
MrErvik aug. 11, 2012 08:42 85% 24,4 km/t 95 m 298,4 W 3,1 655
andreas juni 10, 2010 08:45 78,5% 25,4 km/t 97 m 302,4 W 3,3 665
MrErvik juli 18, 2012 08:51 84,5% 25,3 km/t 98 m 540,8 W 5,4 664
andreas juni 4, 2016 08:55 68,5% 25,0 km/t 103 m 288,7 W 3,4 693
jleknes mai 9, 2012 08:56 85,1% 25,4 km/t 93 m 273,7 W 3,3 625
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