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There are plenty of trail runners who do use poles. They do give you an advantage so some races ban them. If they are banned in a race, training with poles could well be a disadvantage, at least if you always train with them.
Some examples showing the practice:
https://www.inov-8.com/blog/jasmin-paris-recordbreaking-spine-race-win/, although that is an ...
2
I do a fair amount of mountain trail running in Southern California, and I don't use poles. This whole idea of stress on your knees is something that I think just exists in people's heads, or maybe there are some people who have vulnerable knees. I've had my share of running injuries, but never the slightest twinge in my knees. I do worry about taking a ...
1
Your first concern is OK: tightened prussik loops do not cut ropes even after hard falls [1]. There are, however, several other problems with your set up.
The munter hitch is not dynamic enough to allow the rope to run - even without the prussik loop.
The prussik loop will definitely get tightened during ascent.
The loop of rope that will form between the ...
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