Parallel turn
The fronds is a short swing technique of alpine skiing, which is based on the drifted parallel turns. It swings with high frequency and without a straight line be driven in between, so that the turns pass directly into each and reminds the movement of the ski to the tail wagging a dog. A (time-wasting ) vertical movement of the upper body is at the ski slope - if at all - only minimally, the angular momentum on the ski is made by lateral hip bend ( Drehmomentraktion ). The transmission of this impulse to the ski and the more momentum control by pressure on the sliding ( drifting ) ski edges is called a heel thrust. Before carving the era fronds belonged with close parallel ski control to "High School " alpine skiing. With modern carving skis you can even wag, but the carving technique allows for a much more dynamic driving at higher speeds at approximately comparable swing frequency, but this requires more effort.
Definition & Technology
Turns the fronds are driven in which the skier drifts beyond the edge of the ski, that is to say slipped. The starting point is a neutral posture on the ski, ankle, knee and hip joints are evenly stretched and bent. Central elements of this technique are lateral hip bend and swing control over the so-called heel thrust. The actual direction of travel is based on the fall line: the upper body is aimed directly down the slope to the valley and moves along the fall line, legs and skis perform including a pendulum motion. The use of poles is used on the groomed slopes primarily as a rhythm generator for turn initiation.
In deep snow there is a much stronger vertical motion of the upper body as the fronds on the slopes to facilitate by high relief and active use of the poles turn initiation.
History
Based on the developed in the 1930s by Anton Seelos in Seefeld in Tirol parallel turn, the fronds technology was created in the 1950s in Austria. Style visual representative was Stefan Kruckenhauser of St. Christoph am Arlberg ( Austria ).
Fronds emerged from the Verwindungstechnik that Stefan Kruckenhauser took over from slalom skiers in the Skilehrplan. The racers drove this style to avoid the painful and mostly strong braking engagement with goal posts made of solid wood and still can ski as close as possible At the gateway line. To go with such a twisting of the upper body also reasonably fast and safe, the momentum had triggered by the hip bend and the heel thrust are driven simultaneously with the upper body was downhill inclined laterally outward ( relative to the direction of the ski).
With a hardly or not waisted ski the radius of a swing drifted over edging angle, edge pressure and heel thrust is controlled. Unlike in racing where high speeds require higher edge pressure and larger edging angle, allows for untaillierten ski only a slight edge pressure and edging angle approach a loose juxtaposition of short turns. In the 1970s, the fronds was replaced by the Umsteigeschwung in racing, in which the inner turning ski is raised so that also affects a lateral sweeping triggering force on the ( outer) ski without hip bend and swing can be initiated faster, was coiled only even in vertical combinations. In the 1990s, then continued with the development of the waisted skis by the carving technique.
Even today, the concept of wedeln in the media is often used because of its imagery and tradition - not always in connection with the technology actually so designated. In modern ski teaching fronds is no longer taught in his place the carving came with short radius turns.
In deep snow, however fronds is still one of the advanced techniques - one wants to weave for two braids (ie all regular tracks offset from each other in the snow set ), is the mastery of wedeln prerequisite.