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  1. oscarlanda 07:48, 13. mai 2012
  2. svein1971 08:14, 6. september 2011
  3. Bjornb12 08:17, 18. august 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
oscarlanda mai 13, 2012 07:48 21,3 km/t 208 m 0 W 0 1600
svein1971 sep. 6, 2011 08:14 90,8% 20,8 km/t 196 m 433,2 W 5,5 1428
Bjornb12 aug. 18, 2013 08:17 91,2% 20,2 km/t 44 m 138,0 W 1,9 319
Bjornb12 juni 1, 2014 08:45 91,2% 19,1 km/t 203 m 375,6 W 5,1 1392
oscarlanda mars 18, 2012 09:52 181 bpm 17,0 km/t 206 m 0 W 0 1253
Bjornb12 mars 10, 2013 10:17 91,2% 16,5 km/t 212 m 320 W 326,6 W 4,3 1237
Chrrii mars 10, 2013 10:58 166 bpm 15,5 km/t 211 m 311 W 0 W 0 1154
Bjornb12 juni 4, 2014 11:00 81,5% 15,3 km/t 193 m 290 W 279,0 W 3,9 1053
Chrrii mai 12, 2013 11:15 166 bpm 19,0 km/t 202 m 0 W 0 1077
Chrrii mai 12, 2013 11:15 166 bpm 19,0 km/t 202 m 0 W 0 1077
oscarlanda juni 28, 2012 11:18 14,4 km/t 192 m 0 W 0 1019
Bjornb12 des. 21, 2013 11:32 14,5 km/t 201 m 291 W 273,6 W 3,9 1046
Bjornb12 juni 25, 2014 11:34 76,1% 14,2 km/t 199 m 261,2 W 3,5 1032
Bjornb12 mai 29, 2013 11:41 77,6% 14,3 km/t 199 m 263,6 W 3,6 1022
Bjornb12 feb. 11, 2014 11:45 77,1% 14,2 km/t 207 m 268 W 274,7 W 3,6 1057
Bjornb12 juni 6, 2013 11:49 75,1% 14,1 km/t 201 m 262,1 W 3,5 1021
Bjornb12 aug. 24, 2014 12:08 77,6% 13,6 km/t 214 m 271,0 W 3,7 1058
eirirs juli 26, 2011 12:19 13,8 km/t 205 m 294,9 W 3,4 999
oscarlanda aug. 29, 2012 13:00 142 bpm 12,6 km/t 203 m 0 W 0 937
Bjornb12 mars 26, 2014 13:00 73,2% 12,9 km/t 206 m 246 W 245,2 W 3,3 951
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