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  1. alfgrotte 08:03, 7. mai 2013
  2. andreas 08:12, 10. mai 2016
  3. GeirEvensen 08:20, 13. mai 2014


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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
alfgrotte mai 7, 2013 08:03 73,7% 30,0 km/t 120 m 359,6 W 5,1 894
andreas mai 10, 2016 08:12 84,5% 29,7 km/t 125 m 400,5 W 4,7 915
GeirEvensen mai 13, 2014 08:20 89,4% 29,3 km/t 118 m 334 W 388,4 W 3,8 850
andreas mai 7, 2013 08:32 87% 28,8 km/t 117 m 370,9 W 4,2 823
andreas mai 13, 2014 08:44 86% 27,8 km/t 119 m 356,6 W 4,1 818
martino mai 12, 2015 08:54 82,6% 27,5 km/t 121 m 258 W 337,3 W 3,1 816
andreas mai 12, 2015 08:54 84% 27,2 km/t 117 m 338,0 W 3,9 789
GeirEvensen mai 12, 2015 09:06 83,8% 26,7 km/t 126 m 309 W 346,4 W 3,6 831
GeirEvensen mai 7, 2013 09:07 87,4% 30,3 km/t 121 m 417,2 W 4,7 796
fartsklemme mai 13, 2014 09:18 87,9% 26,3 km/t 121 m 303 W 331,6 W 3,5 781
andreas mai 8, 2018 09:20 86,5% 25,8 km/t 121 m 301 W 331,0 W 3,3 778
GeirEvensen okt. 10, 2015 12:08 75,8% 19,9 km/t 124 m 226,3 W 2,6 613
LedZep mai 16, 2015 12:31 70,8% 19,6 km/t 0 m 61,7 W 0,8
LedZep sep. 13, 2014 12:50 75,7% 19,1 km/t 119 m 184 W 187,5 W 2,5 556
andreas juni 4, 2016 13:11 59% 18,5 km/t 126 m 205,0 W 2,4 573
GeirEvensen mai 16, 2015 14:33 66,7% 18,0 km/t 127 m 186 W 202,9 W 2,2 524
GeirEvensen feb. 21, 2015 15:40 72,2% 15,5 km/t 126 m 167,4 W 1,9 483