Occassional thoughts about orienteering
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| okansas.blogspot.com Occassional thoughts about orienteering |
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Tuesday, February 20, 2007 Looking at the map - an experimentTry this some time. Run a fairly easy leg and count how many times you look at the map. Check how long it took you to run the leg. Now, calculate how frequently you looked at the map.The map below shows a hypothetical example. Each "x" is a place you might look at the map. You look at the map in the triangle. Then as you run along the trail, you look again. You check the map when you reach the trail-reentrant crossing, just before you leave the trail. As you cross the top of the reentrant, you check the map. Finally, as you go over the hill and start toward the control, you check again. That's 5 looks at the map. If the leg took 3 minutes, that works out to a look at the map every 36 seconds.  Now, run the same leg again and force yourself to look at the map much more frequently. Aim for a look every 10 seconds. See what it feels like to look at the map that frequently. Here is a rough translation from a Norwegian newspaper article about a training weekend with Bjornar Valstad and Hanne Staff. The quote is from an orienteer who was at the training: "They talked about what you need to do to be good and what you should think about during a race," said Arnfinn Kringlen. Something that surprised him the most was how often an orienteer should check the map. Based on some research, the orienteers who read the map the most usually do the best. "They [Valstad and Staff] said that they check the map every 10 seconds. That's a bit surprising, I hadn't thought about it before," said Arnfinn. Back to okansas.blogspot.com. posted by Michael | 8:09 PM 
Comments:
I guess it depends on the kind of map. On a complex scandinavian terrain (like the one Valstad was "born" you need to read the map a lot, even just to simplify the leg). On a terrain like the one you show in your post it's easier, and you can run faster and longer without looking at the map
# posted by
 : 11:58 AM
I guess it is not only the amount but the quality, of the map contacts, which is deciding.
I therefore tried to developp a characterisation of map contacts. http://www.arua.ch/bilder/060920_Kartenanalyse.pdf It is written in german, I might translate it to english, if you're intressted. (let me know mlerjen@ubol.ch) The first column shows the three principal properties of a map contact (1.Knowledge about own position on map/2.Relation between position in the terrain and the region read on map. /3. Result of the mapcontact) Column two caracterizes Map Contact Types charaterized by the three principal properties (explaining, idea-giving, affirmative, detailing, vision-giving, pre-loading). Column three shows a way to implement this model of types into analyzes... My thesis is, that the good runners read so often because they are reading a lot of affirmative and detailing after having build a good visionary base. Instead those who hate reading, hate it beacause their reading on the leg takes much longer because these contacts are retrospective, idea-giving or visonary (to late!). Well! I really would like to dicuss/enhance my model... :-)
Resim
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