Best efforts
  1. Samund 48, July 31, 2012
  2. b_knutsson 49, Aug. 23, 2012
  3. Samund 49, July 6, 2012


GPX File


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

Comment
Samund July 31, 2012 48 90% 37.6 km/h 21 m 682.2 W 8.6 1575
b_knutsson Aug. 23, 2012 49 89.2% 34.7 km/h 17 m 466.0 W 7.3 1249
Samund July 6, 2012 49 86.5% 37.2 km/h 21 m 620 W 664.6 W 7.8 1543
b_knutsson April 14, 2014 01:16 69.2% 23.3 km/h 18 m 253.3 W 4.0 853
b_knutsson July 20, 2013 01:28 68.2% 18.6 km/h 21 m 213.5 W 3.3 859
b_knutsson Sept. 19, 2014 01:34 78.5% 19.9 km/h 18 m 191.6 W 3.0 689
b_knutsson May 15, 2014 01:38 66.7% 25.4 km/h 0 m 106.1 W 1.7
Tonelinn78 May 20, 2014 01:40 71.5% 18.1 km/h 19 m 216.4 W 2.8 684
b_knutsson Aug. 17, 2014 01:40 63.6% 18.5 km/h 17 m 175.3 W 2.7 612
Samund Nov. 18, 2012 01:42 79% 17.7 km/h 11 m 243 W 145.4 W 3.1 388
b_knutsson Nov. 18, 2012 01:43 74.4% 18.4 km/h 19 m 183.9 W 2.9 664
Tonelinn78 Aug. 17, 2014 01:43 83% 17.4 km/h 21 m 224.5 W 3.0 734
Tonelinn78 May 13, 2014 01:46 76.5% 17.0 km/h 19 m 198.5 W 2.6 645
svein.andersen.7 May 14, 2013 01:48 74.9% 17.2 km/h 21 m 191.3 W 2.9 700
Tonelinn78 April 23, 2014 01:51 77% 16.2 km/h 19 m 187.0 W 2.5 616
Tonelinn78 June 3, 2014 01:52 74% 17.6 km/h 19 m 197.9 W 2.6 611
Tonelinn78 Aug. 7, 2013 01:53 78% 17.8 km/h 17 m 185.1 W 2.3 542
Tonelinn78 Sept. 13, 2014 02:00 85.5% 20.5 km/h 17 m 178.2 W 2.3 510
Tonelinn78 July 2, 2013 02:04 77% 15.3 km/h 21 m 196.9 W 2.5 610
b_knutsson July 5, 2015 03:01 9.4 km/h 50 m 216.8 W 3.4 994
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