bruce

VI = Variability Index = Normalised Power/Average Power Normalised power takes into account the fact that the physiological demand of riding at intensities above threshold is far greater than riding below threshold. So, if you have a highly variable ride i.e. regular anaerobic bouts, your normalised power will be much higher than your average power and hence VI will be quite a bit bigger than 1. Normalised power is the equivalent steady state (consistent) power that you would have to produce to achieve the same physiological cost. A timetrial is typically a very evenly paced effort, hence VI would be close to 1. But, in a road TT cadence variation would be very small, and gears would be used to keep the power output and cadence in a narrow range. Looking at your numbers, there is a huge cadence variance. The wide range of gears on an MTB would enable this.

I see that the VI is quite low, so it is a pretty constant effort - similar to a time-trial. Wide range of cadence/torque though.

I think the icon should be used in a similar vein as the Livestrong band - a way for people to raise awareness of the cycle safety situation. It should appear on T-Shirts etc. Is there any coordination between yourself and "Think Bike"? They are now producing stickers with motorbikes and bicycles on them.

An alternative is to get clubs to put the logo on their kit, and for each set of kit sold to a club member the club charges a R5 levy and passes it on to the initiative.

Hey Shaun, How about selling the idea to racing teams and cycling clubs. For a small donation to the fund, the team put's the icon somewhere on their kit to show support. I am busy sorting out sponsorships and kit for our team next year so we would be happy to make a donation, and it would be quite cool to put the logo somewhere on our kit?bruce2007-10-24 09:05:33

The point at which your muscles start to burn more glycogen than fat corresponds with your lactate threshold. The higher the intensity of exercise, the more Calories that are consumed and the bigger the Calorie deficit if you don't replenish what you expended. So, you need to be aware of how much you expend vs. how much you consume, and to lose weight you need to be in a state of energy deficit so your body does not replenish it's fat stores. High intensity exercise will burn more fat, but it needs to be properly managed.bruce2007-10-24 05:23:08

Sean is one of the true gentleman you'll meet in life!

http://www.bikemaxpower.com/blog/Bruce_Diesel/277

I have posted the Kermesse stats on my blog: http://www.bikemaxpower.com/blog/Bruce_Diesel/276

Please would you send me a file or two if that is okay with you. I'd like to take a look at the data (using Quadrant Analysis) and get a feel for the demands of MTB - I'd like to give it a go one day and would be interested to see if it would suit.

Neither would I - I'd have to attack him 5km from the finish, that's for sure!

anyone taller then me ??? There is a guy that rides in Pta who i believe is 2m and rides a special built Eddy Merxc bike. Jason Ward

191cm, 76kg, 8%

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Race:Duration: 3:00:08 (3:00:10)Work: 2599 kJTSS: 220.7 (intensity factor 0.858)Norm Power:300VI: 1.25Distance: 111.109 kmMinMaxAvgPower: 01059241wattsHeart rate: 87176146bpmCadence: 2917476rpmSpeed: 077.637kphPace 00:4600:0001:37min/kmLast Climb in Reserve:Duration: 05:28Work: 130 kJTSS: 11.8 (intensity factor 1.139)Norm Power:399VI: 1Distance: 1.471 kmMinMaxAvgPower: 250547398wattsHeart rate: 161176172bpmCadence: 558668rpmSpeed: 12.720.216kphPace 02:5804:4303:45min/kmPeak 5min (399 watts):Duration: 05:01Work: 120 kJTSS: 10.9 (intensity factor 1.141)Norm Power:400VI: 1Distance: 1.366 kmMinMaxAvgPower: 250547399wattsHeart rate: 160176171bpmCadence: 558769rpmSpeed: 12.72116.2kphPace 02:5104:4303:42min/kmPeak 20min (325 watts):Duration: 20:01Work: 390 kJTSS: 38 (intensity factor 1.067)Norm Power:374VI: 1.15Distance: 8.201 kmMinMaxAvgPower: 0981325wattsHeart rate: 126176161bpmCadence: 4114174rpmSpeed: 13.559.724.5kphPace 01:0004:2702:27min/kmPeak 60min (292 watts):Duration: 01:00:01Work: 1050 kJTSS: 96.8 (intensity factor 0.984)Norm Power:344VI: 1.18Distance: 37.38 kmMinMaxAvgPower: 01059292wattsHeart rate: 119176159bpmCadence: 2917078rpmSpeed: 12.771.537.4kphPace 00:5004:4301:36min/km

Nah, just abusing the English language a bit and twisting words - should have been a journalist, or a lawyer! <duck>