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  1. tor 10:48, 24. mai 2010
  2. lars 11:14, 24. mai 2010
  3. christian 11:16, 12. juni 2016


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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
tor sep. 4, 2011 11:55 90,3% 24,8 km/t 172 m 363 W 324,2 W 4,4 866
tor aug. 3, 2011 11:28 87,2% 25,7 km/t 168 m 355 W 334,1 W 4,4 879
kjetil aug. 3, 2011 12:02 80% 24,4 km/t 167 m 350 W 326,5 W 4 833
kjetil juli 7, 2012 11:42 82,1% 25,2 km/t 172 m 341 W 343,8 W 4,0 882
andreas aug. 3, 2011 11:40 85% 25,6 km/t 169 m 340 W 353,3 W 3,8 869
tor juli 23, 2011 11:42 87,7% 25,3 km/t 168 m 332 W 327,8 W 4,0 862 Terskeldrag
andreas mai 24, 2010 11:53 84% 24,8 km/t 176 m 332 W 355,0 W 3,6 889
kjetil juni 20, 2012 13:20 72,8% 22,2 km/t 172 m 305 W 287,3 W 3,5 774
tor mai 11, 2011 12:24 82,6% 23,7 km/t 171 m 304 W 306,5 W 3,7 827
tor april 22, 2011 12:33 78,5% 23,7 km/t 174 m 303 W 312,2 W 3,6 832
christian juni 12, 2016 11:16 85,5% 26,2 km/t 172 m 303 W 333,6 W 4,0 916
tor april 19, 2011 12:25 82,6% 23,7 km/t 172 m 299 W 312,5 W 3,5 831
tor juni 30, 2011 12:48 83,1% 22,9 km/t 172 m 298 W 294,1 W 3,6 806
kjetil juni 25, 2012 13:03 72,8% 22,5 km/t 175 m 298 W 298,3 W 3,5 805
andreas mai 21, 2010 13:48 76,5% 21,3 km/t 175 m 286 W 289,0 W 3,1 761
christian april 25, 2011 11:53 82,6% 24,9 km/t 178 m 282 W 298,9 W 4,0 899
christian mai 31, 2016 12:40 88,4% 23,2 km/t 169 m 282 W 280,4 W 3,7 801
kjetil mai 29, 2012 16:08 68,7% 17,9 km/t 165 m 276 W 218,2 W 3,2 614
tor mai 7, 2011 15:55 78,5% 18,4 km/t 174 m 271 W 222,8 W 3,3 656
christian juni 17, 2016 13:08 79,2% 22,4 km/t 172 m 270 W 271,3 W 3,6 786
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