Beste resultat
  1. kjetil 20:24, 17. juli 2012
  2. tor 21:14, 15. september 2011
  3. christian 21:44, 20. juli 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
kjetil juli 17, 2012 20:24 83,6% 11,5 km/t 344 m 278,0 W 3,2 1012
tor sep. 15, 2011 21:14 85,1% 11,4 km/t 336 m 257,7 W 3,1 949
christian juli 20, 2012 21:44 83,1% 10,7 km/t 334 m 227,6 W 3,0 922
kjetil juli 28, 2012 22:07 77,4% 10,6 km/t 334 m 246,9 W 2,9 906
kjetil juli 16, 2012 22:09 81,5% 10,5 km/t 334 m 244,0 W 2,8 905
tor sep. 14, 2011 22:11 87,2% 9,8 km/t 342 m 239,4 W 2,9 925
kjetil juli 28, 2012 22:11 79,0% 10,6 km/t 334 m 248,7 W 2,9 903
christian juli 20, 2012 22:45 80,2% 10,3 km/t 334 m 216,6 W 2,8 881
kjetil aug. 5, 2013 22:49 9,8 km/t 340 m 240,7 W 2,8 894
kjetil juli 16, 2012 22:54 83,6% 10,3 km/t 336 m 241,2 W 2,8 880
tor sep. 26, 2011 23:14 86,7% 10,1 km/t 335 m 244,6 W 3,0 865
christian sep. 26, 2011 23:19 83,6% 10,3 km/t 341 m 213,0 W 3,1 877
christian juli 16, 2012 23:31 84,1% 10,0 km/t 334 m 208,6 W 2,7 852
christian juli 17, 2012 23:58 84,1% 9,5 km/t 334 m 198,3 W 2,6 836
tor okt. 11, 2011 24:00 84,6% 10,1 km/t 347 m 242,6 W 3,0 868
christian sep. 29, 2011 24:29 87,0% 10,5 km/t 336 m 200,3 W 2,9 823
christian okt. 11, 2011 24:34 85,5% 9,3 km/t 341 m 184,1 W 2,7 833
christian juli 16, 2012 24:35 81,2% 9,4 km/t 335 m 197,8 W 2,6 818
kjetil aug. 5, 2013 24:36 9,6 km/t 332 m 221,2 W 2,6 810
christian juli 17, 2012 24:41 82,1% 9,2 km/t 345 m 200,5 W 2,6 839
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