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  1. eivind123 07:40, 1. mai 2012
  2. Samund 07:58, 1. mai 2012
  3. eivind123 08:14, 9. juni 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
eivind123 mai 1, 2012 07:40 94,6% 19,5 km/t 174 m 366,0 W 5,0 1362
Samund mai 1, 2012 07:58 93% 18,8 km/t 179 m 384,8 W 4,9 1348
eivind123 juni 9, 2012 08:14 89,7% 18,3 km/t 172 m 337,9 W 4,6 1253
b_knutsson mai 1, 2013 08:14 89,7% 16,9 km/t 172 m 272,6 W 4,3 1253
b_knutsson mai 30, 2012 08:23 88,7% 16,7 km/t 172 m 269,3 W 4,2 1231
b_knutsson april 9, 2012 08:26 94,9% 17,9 km/t 174 m 290,2 W 4,5 1238
b_knutsson mai 1, 2014 08:29 90,8% 17,5 km/t 168 m 284,7 W 4,4 1188
Samund mars 27, 2012 08:30 88,5% 17,5 km/t 182 m 361,5 W 4,6 1285
b_knutsson sep. 24, 2011 08:32 95,9% 17,7 km/t 169 m 282,0 W 4,4 1188
b_knutsson april 17, 2015 08:34 89,2% 17,6 km/t 0 m 45,7 W 0,7
Samund mai 15, 2012 08:35 87% 17,5 km/t 181 m 357,0 W 4,5 1265
b_knutsson april 10, 2012 08:41 91,8% 17,4 km/t 169 m 273,4 W 4,3 1168
eivind123 april 17, 2012 08:42 88,1% 17,3 km/t 172 m 316,7 W 4,3 1186
b_knutsson juni 4, 2012 08:42 88,2% 16,6 km/t 169 m 264,9 W 4,1 1166
eivind123 april 10, 2012 08:45 89,7% 17,1 km/t 176 m 318,6 W 4,4 1207
Samund april 24, 2012 08:45 89% 17,1 km/t 185 m 355,7 W 4,5 1269
eivind123 mai 1, 2011 08:48 93,0% 23,6 km/t 177 m 475,6 W 6,5 1207
Samund juni 21, 2012 08:48 84,5% 17,0 km/t 179 m 336 W 343,1 W 4,3 1220
b_knutsson april 27, 2013 08:49 85,1% 16,9 km/t 165 m 263,0 W 4,1 1123
b_knutsson juni 16, 2014 08:49 80,5% 16,7 km/t 160 m 261,1 W 4,1 1089
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