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  1. GeirEvensen 08:18, 15. mai 2012
  2. trohau 08:58, 15. mai 2012
  3. alfgrotte 09:04, 16. mai 2013


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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 15, 2012 08:18 90,9% 23,3 km/t 172 m 373 W 413,4 W 4,4 1243
trohau mai 15, 2012 08:58 90,2% 21,8 km/t 178 m 345,1 W 4,8 1191
alfgrotte mai 16, 2013 09:04 63,7% 21,0 km/t 174 m 323,8 W 4,6 1151
andreas mai 10, 2011 09:28 89,5% 20,4 km/t 175 m 368,6 W 4,2 1109
andreas mai 11, 2010 09:37 90% 20,1 km/t 179 m 368 W 381,4 W 4 1117
andreas mai 15, 2012 09:41 92% 20,4 km/t 171 m 346 W 355,1 W 3,9 1060
alfgrotte mai 16, 2013 09:43 72,6% 19,8 km/t 178 m 305,2 W 4,3 1099
magni mai 11, 2010 09:45 87,9% 20,0 km/t 177 m 310,0 W 4,3 1089
fartsklemme mai 15, 2012 09:48 91,4% 20,1 km/t 174 m 363 W 358,6 W 4,2 1065
andreas aug. 11, 2013 10:33 85,5% 18,4 km/t 97 m 197,9 W 2,3 552
alfgrotte mai 16, 2013 10:56 53,2% 18,7 km/t 177 m 281,8 W 4,0 971
chrissol juni 20, 2011 11:04 77,9% 17,5 km/t 206 m 278,6 W 4,2 1117
fartsklemme mai 8, 2011 11:28 17,8 km/t 167 m 299,7 W 3,4 874
lars juli 24, 2010 11:35 78,0% 16,9 km/t 173 m 294,4 W 3,3 896
LedZep mai 15, 2012 11:37 92,4% 17,7 km/t 175 m 272,0 W 3,6 904
andreas juli 27, 2010 11:54 80,5% 16,2 km/t 174 m 289 W 280,4 W 3,3 877
kentrune juli 10, 2016 12:16 86% 15,8 km/t 182 m 294,4 W 3,1 890
lars juli 27, 2010 12:27 73,8% 15,8 km/t 177 m 277,0 W 3,1 853
kentrune juni 11, 2017 12:35 82% 15,2 km/t 182 m 284,9 W 3,0 868
fartsklemme sep. 25, 2010 12:38 86,9% 19,5 km/t 155 m 271,1 W 3,1 736
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