Great video! A world class rollerskier (who also races ski marathons during the winter) told me that I should think of my hip hinge movement (combined with getting my heels up) as the main driving force instead of my arms to get more efficient when it comes to double poling.
Great video - Thank-you! The "high position"/Starting position - I have always wondered what is gained by the significant extension of the ankles (ie up on toes/high heel @1:19)...how does that influence the forward propulsion? It seems like it "collapses" to a significant extent (@ 2:14) prior to the poles hitting the snow. Sorry...am asking as someone not well versed in biomechanics...
Thanks for commenting on this! The whole body's high position and forward lean is a pattern we see in all sub-techniques in Cross-Country skiing. It gives the skier possibility to transfer body weight on the poles and gives "free" forward pulsation just by "falling" forward. The high position has higher potential energy that can be used for forwarding pulsation. The "collapse" in the arms you emphasised (@ 2:14) is often seen as a false and weak skier in the double poling technique, but this is a widespread strategy. This extension- flexion pattern is known to increase power in all movements. It is a preactivation of the important poling muscles. And when the pols are coming into the right position, they do their work. If we had set up the poles in the "right" position (angled) when they were put in the snow (like we do in double poling in uphill's), we would not have the time to make power in the poles because of the high forward speed of the skier in the track. If you refer to that, the hip is collapsing. That is only if the skiers are sitting down from å high position. However, the video's skier uses the stomach and hip muscles muscle to crunch the upper body on the poles and keeps the bodyweight on the poles and arms throughout the whole poling phase. You can see that the skier is on here forefoot and keeps the body weight there, and just at the finished of the stroke is distributing the bodyweight on the whole foot (toa and heels). Hope this was understandable?
@@cross-countryskiingper-yvi9028 Outstanding! Thanks. That makes perfect sense...it amazes me how the technical components of nordic skiing seem to be in a constant state of evolution. Your videos, commentary, and insights are extremely helpful! Appreciate your time spent in replying.
Just to understand correctly. During the preactivation phase, the head is going towards the fingers and not the opposite. I don't pull my hands toward my head, right?
It is actually a flextion-extention pattern in the elbow and the sholder, and the fingers is going towards the head. However, it is not a action where you pull the hands against the head, it is a consequens of the movment down in the upper body
I think that something happened to female cross country skiers wherein their calf muscles became too thin/atrophied. Are there certain techniques (particularly in roller ski) that place stronger emphasis on calf muscles?
Sorry for the late answer Peter, I have seen your question but has just forgotten about it. However, all kicks in XC skiing end with plantar flexion of the ankle joint and emphasise the calf muscle. The double poling technique is also dependent on the critical repositioning of the whole body, and the last part is often done by going up on your toes, which also is quite demanding for the calf muscles. Hope that was an answer! Ski reg Per-Øyvind
Great video! A world class rollerskier (who also races ski marathons during the winter) told me that I should think of my hip hinge movement (combined with getting my heels up) as the main driving force instead of my arms to get more efficient when it comes to double poling.
you really help the skiers-community with your really good work! Thanks!
Great video - Thank-you! The "high position"/Starting position - I have always wondered what is gained by the significant extension of the ankles (ie up on toes/high heel @1:19)...how does that influence the forward propulsion? It seems like it "collapses" to a significant extent (@ 2:14) prior to the poles hitting the snow. Sorry...am asking as someone not well versed in biomechanics...
Thanks for commenting on this! The whole body's high position and forward lean is a pattern we see in all sub-techniques in Cross-Country skiing. It gives the skier possibility to transfer body weight on the poles and gives "free" forward pulsation just by "falling" forward. The high position has higher potential energy that can be used for forwarding pulsation. The "collapse" in the arms you emphasised (@ 2:14) is often seen as a false and weak skier in the double poling technique, but this is a widespread strategy. This extension- flexion pattern is known to increase power in all movements. It is a preactivation of the important poling muscles. And when the pols are coming into the right position, they do their work. If we had set up the poles in the "right" position (angled) when they were put in the snow (like we do in double poling in uphill's), we would not have the time to make power in the poles because of the high forward speed of the skier in the track. If you refer to that, the hip is collapsing. That is only if the skiers are sitting down from å high position. However, the video's skier uses the stomach and hip muscles muscle to crunch the upper body on the poles and keeps the bodyweight on the poles and arms throughout the whole poling phase. You can see that the skier is on here forefoot and keeps the body weight there, and just at the finished of the stroke is distributing the bodyweight on the whole foot (toa and heels). Hope this was understandable?
@@cross-countryskiingper-yvi9028 Outstanding! Thanks. That makes perfect sense...it amazes me how the technical components of nordic skiing seem to be in a constant state of evolution. Your videos, commentary, and insights are extremely helpful! Appreciate your time spent in replying.
Calf muscle helps pump more blood too with extension😊
Hello, Can I send you a video of my double polling for technical advice?
Thanks Éric
Just to understand correctly. During the preactivation phase, the head is going towards the fingers and not the opposite. I don't pull my hands toward my head, right?
It is actually a flextion-extention pattern in the elbow and the sholder, and the fingers is going towards the head. However, it is not a action where you pull the hands against the head, it is a consequens of the movment down in the upper body
@@cross-countryskiingper-yvi9028 Thank you for a quick response and a clarifying one too.
Very powerful DP 💪
Could you turn on subtitles please.
Could you explain to me howe it is done?
@@cross-countryskiingper-yvi9028tries in settings of your channel.
I think that something happened to female cross country skiers wherein their calf muscles became too thin/atrophied. Are there certain techniques (particularly in roller ski) that place stronger emphasis on calf muscles?
Sorry for the late answer Peter, I have seen your question but has just forgotten about it. However, all kicks in XC skiing end with plantar flexion of the ankle joint and emphasise the calf muscle. The double poling technique is also dependent on the critical repositioning of the whole body, and the last part is often done by going up on your toes, which also is quite demanding for the calf muscles. Hope that was an answer!
Ski reg Per-Øyvind