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  1. Moonlit 09:24, 4. september 2012
  2. Arne313 12:14, 5. mai 2012
  3. tobiast 13:11, 5. 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
Moonlit sep. 4, 2012 09:24 21,0 km/t 230 m 439,5 W 4,8 1468
Arne313 mai 5, 2012 12:14 18,3 km/t 255 m 356,0 W 4,5 1251
tobiast mai 5, 2013 13:11 90,3% 17,2 km/t 254 m 300 W 308,4 W 4,1 1156
jani sep. 7, 2011 13:16 89,2% 17,4 km/t 241 m 296 W 287,8 W 4,4 1090
jani sep. 4, 2012 13:18 89,2% 17,2 km/t 246 m 281 W 282,5 W 4,2 1110
jani juli 21, 2011 13:26 89,7% 17,2 km/t 239 m 289 W 283,8 W 4,2 1067
jani aug. 4, 2011 13:37 87,6% 17,2 km/t 237 m 281 W 279,7 W 4,1 1044
djm april 3, 2012 13:48 80% 16,4 km/t 255 m 311,3 W 3,8 1109
tobiast mai 3, 2013 13:53 87,6% 16,3 km/t 255 m 282 W 291,5 W 3,9 1102
jani aug. 23, 2013 14:04 83,8% 16,4 km/t 237 m 242 W 260,5 W 3,6 1011
jani sep. 2, 2013 14:05 85,9% 16,4 km/t 238 m 275 W 261,3 W 4,0 1014
jani juni 28, 2013 14:24 83,8% 16,0 km/t 247 m 259 W 264,3 W 3,8 1029
Arne313 okt. 28, 2011 14:29 15,6 km/t 280 m 319,6 W 4,0 1160
Moonlit juli 29, 2011 14:31 89,2% 16,0 km/t 224 m 309,2 W 3,4 926
jani aug. 12, 2013 14:32 84,9% 15,9 km/t 244 m 258 W 257,2 W 3,8 1007
jani mai 6, 2017 14:33 85,4% 15,9 km/t 233 m 262 W 251,8 W 3,7 961
Moonlit sep. 23, 2013 14:36 87,1% 15,1 km/t 247 m 301,0 W 3,3 1015
tobiast aug. 17, 2011 14:37 87,6% 15,9 km/t 244 m 268,1 W 3,7 1002
tobiast aug. 17, 2011 14:37 87,6% 15,9 km/t 244 m 268,1 W 3,7 1002
jahhar aug. 9, 2013 14:52 88,8% 15,1 km/t 263 m 280,0 W 3,8 1061
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