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  1. b_knutsson 03:37, 23. oktober 2011
  2. b_knutsson 03:41, 27. april 2014
  3. Samund 04:03, 29. september 2011


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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
b_knutsson okt. 23, 2011 03:37 93,8% 25,7 km/t 82 m 376,4 W 5,9 1360
b_knutsson april 27, 2014 03:41 85,1% 24,8 km/t 76 m 349,7 W 5,5 1238
Samund sep. 29, 2011 04:03 87,5% 22,7 km/t 94 m 449,9 W 5,3 1393
Samund okt. 24, 2011 04:03 91% 23,0 km/t 95 m 455,7 W 5,4 1407
svein.andersen.7 juli 31, 2013 04:03 91,8% 24,3 km/t 79 m 336,8 W 5,2 1170
Samund okt. 30, 2011 04:05 91% 22,5 km/t 94 m 445,1 W 5,2 1381
b_knutsson nov. 18, 2011 04:07 91,3% 22,3 km/t 87 m 329,5 W 5,1 1268
svein.andersen.7 juli 21, 2013 04:12 90,7% 21,9 km/t 73 m 302,3 W 4,3 1043
b_knutsson april 13, 2012 04:15 84,6% 21,5 km/t 76 m 280,8 W 4,4 1073
b_knutsson nov. 2, 2011 04:16 83,6% 21,5 km/t 74 m 278,0 W 4,3 1041
Samund mars 11, 2012 04:16 93,5% 21,5 km/t 92 m 391,0 W 4,9 1294
Samund april 3, 2012 04:18 90,5% 21,8 km/t 98 m 411,1 W 5,2 1367
eivind123 sep. 25, 2011 04:26 84,3% 20,5 km/t 92 m 344,5 W 4,7 1245
Samund mars 4, 2012 04:27 84,5% 20,8 km/t 93 m 375,6 W 4,8 1254
Samund sep. 24, 2011 04:33 86,5% 20,1 km/t 95 m 393,0 W 4,6 1253
b_knutsson nov. 22, 2011 04:34 84,6% 19,9 km/t 77 m 275,5 W 4,3 1012
john.ulvenes juni 10, 2012 05:00 190 bpm 18,2 km/t 75 m 0 W 0 900
john.ulvenes mai 29, 2012 05:08 186 bpm 17,7 km/t 73 m 0 W 0 853
oscarlanda juni 21, 2012 05:08 17,6 km/t 74 m 0 W 0 865
Samund mars 23, 2012 05:10 83,5% 17,8 km/t 94 m 316,5 W 4,0 1092
meir...