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  1. b_knutsson 02:09, 28. april 2014
  2. Samund 02:22, 14. august 2012
  3. b_knutsson 02:27, 3. oktober 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 april 28, 2014 02:09 88,2% 25,5 km/t 56 m 407,0 W 6,4 1563
Samund aug. 14, 2012 02:22 86% 23,3 km/t 39 m 450 W 332,2 W 5,7 989
b_knutsson okt. 3, 2011 02:27 82,1% 21,8 km/t 48 m 305,4 W 4,8 1176
Samund juli 29, 2012 02:29 86,5% 22,2 km/t 57 m 396 W 416,5 W 5,0 1377
Samund sep. 20, 2011 02:33 87% 20,9 km/t 56 m 415,0 W 4,9 1318
b_knutsson sep. 20, 2011 02:39 89,2% 20,7 km/t 57 m 318,9 W 5,0 1291
b_knutsson mai 23, 2015 02:42 86,7% 20,3 km/t 59 m 234 W 319,9 W 3,7 1311
Samund okt. 11, 2011 02:46 89,5% 19,5 km/t 57 m 384,5 W 4,5 1236
b_knutsson sep. 18, 2012 02:46 85,1% 19,8 km/t 58 m 304,7 W 4,8 1258
Samund mars 20, 2012 02:47 87% 19,9 km/t 57 m 363,8 W 4,6 1229
b_knutsson mai 7, 2012 02:47 81,5% 18,6 km/t 57 m 299,0 W 4,7 1229
Samund des. 29, 2011 02:51 93,5% 18,9 km/t 56 m 344,6 W 4,4 1179
Samund feb. 28, 2012 02:51 87,5% 19,5 km/t 56 m 348,9 W 4,4 1179
Samund aug. 3, 2011 02:53 86% 18,8 km/t 56 m 343,8 W 4,3 1165
Samund april 9, 2012 02:54 89,5% 19,0 km/t 56 m 341,0 W 4,3 1159
Samund april 15, 2012 02:54 88,5% 19,2 km/t 57 m 347,0 W 4,4 1179
Samund mars 29, 2012 02:57 87,5% 18,4 km/t 56 m 332,1 W 4,2 1139
Samund aug. 14, 2011 03:01 82,5% 18,0 km/t 56 m 342,8 W 4,0 1114
b_knutsson mars 12, 2014 03:03 82,1% 17,5 km/t 56 m 265,4 W 4,1 1102
b_knutsson nov. 16, 2011 03:06 85,1% 16,8 km/t 55 m 260,0 W 4,1 1065
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