Especialidades JA/Esquí de fondo

Esquí de fondo
Asociación General Actividades recreacionales	Destreza: 2 Año de introducción: 1986

Requisitos

1

Hacer una lista y describir las principales características, calidades y el tamaño de los siguientes equipos de esquí de fondo:

1a

Esquís (tanto los que se enceran y los no se enceran)

Waxless skis are better suited to recreational skiers who simply want to get out on the trail with minimal time spent on maintenance, as they generally produce too much drag for competitive skiers.

Waxless skis are sometimes used by Nordic racers during variable ski conditions such as temperatures over freezing. In fact, some Nordic ski racers using waxless skis have beaten racers who used waxable skis due to the variable and changing conditions.

1b

Fijación de la bota

There are three primary groups of binding systems used in modern cross-country skiing:

• NNN (New Nordic Norm) – including the new R4 NIS variant
• SNS (Salomon Nordic System) Profil
• SNS Pilot

Older styled three-pin bindings (Nordic Norm), with or without cables, are still used by backcountry and Telemarking enthusiasts.

Further variants to NNN and SNS are "BC" (back-country) standards, where the toe hold in the binding is wider and the bar in the boot's toe is longer and thicker in order to give further lateral rigidity. This added strength and rigidity is especially important with the stiffer boots and heavier skis used in backcountry skiing.

The existing variety of binding systems, none of which are compatible with the other, has long since been a source of frustration for skiers ever since manufacturers diverged from the almost universal three-pin standard. Whereas downhill skiing has a common binding system allowing any boot to work with any binding short of the dynafit-system, modern cross-country skiers must match the skis' binding system to the boot type. When it is time to change the boot, the skier must either be limited to boots of the same binding system or also change the skis' binding.

New Nordic Norm

Rottefella developed the New Nordic Norm (NNN) binding, and licenses it to Rossignol, Madshus, Atomic, and, beginning in 2007, Fischer. These bindings have subtypes, such as the NNN-BC for backcountry use, the R3 Skate, the R3 Classic, and the R4 NIS (Nordic Integrated System). The NIS system requires skis that have a permanently bonded plate that the binding slides onto. This allows for the skier to mount their own bindings without needing to screw into the ski. By doing this the skier can easily tune the position of the binding relative to the center of gravity of the ski, said to be useful in different snow conditions. NNN boots are made by Alpina Sports, Madshus, Rossignol and beginning in 2007, Fischer. The R3 and R4 are generally the choice for World Cup Racers using NNN. These are distinguished from the SNS (Salomon and Atomic) binding in that all NNN bindings have two longitudinal ridges that stick out from the bottom of the binding that mate with corresponding slots in NNN boots. There is much debate over which is the superior binding system: SNS or NNN. Overall, the differences between the NNN and SNS binding systems are minuscule to the average skier; the choice should come down to which binding fits with the boot that happens to fit a given skier.

The R4 NIS binding, made by Rottefella and Rossignol, is the newest variant of the NNN binding. These bindings are compatible with any NNN boot, but can only be used on skis that come with the permanently bonded plate, presently made only by Rossignol, Madshus, and Fischer. The NIS binding made its debut to the general public in 2005.

Salomon Nordic System Profil

SNS binding and ski boots, both of the Salomon brand.

Salomon Nordic System (SNS) bindings, made by Salomon and Atomic, however, have their advantages too. Boots that are compatible with the SNS Profil system are made by Salomon, Atomic, Adidas, and Hartjes. SNS Profil bindings are used for both Skating and Classic. As opposed to the SNS Pilot's two axes, these boots have only one axis at the front of the sole. Pilots are used by many different racers on the World Cup Circuit. Profil bindings are the standard binding for SNS users, its only competition being the SNS Pilot system. Profil comes in "Equipe" models for racing, "Active" for recreational racing/combination, Auto Touring, and Back Country. Fischer was for many years synonymous with SNS as well, but switched to the more widely used NNN for the 2007/2008 season and beyond.

Salomon Nordic System Pilot

SNS Pilot bindings, compatible with Salomon, Atomic, Adidas and Hartjes boots. As of the 2006/2007 season, Atomic will also have SNS pilot on their boots. The idea for these bindings came from Bjørn Dæhlie. Pilots are used mostly by elite skiers at the Collegiate/Olympians/World Cup/National level, although it is common to find High School/Citizen Racers with these bindings and their counterpart boots. Pilots are more expensive than Profils at about 100 U.S. dollars for a pair, and have two completely different designs for skate skiing and classical skiing. In Pilot boots, two axes (metal bars), one positioned about 1" (2.5 cm) behind the other, click into two different slots in the Pilot binding. Profil boots only have one axis and therefore cannot fit into Pilot bindings. However, Pilot boots can fit into most Profil bindings, due to a small space behind the front of the boot for the other axis. Pilot Skate bindings are superior to Profil due to the two latches reducing ski motion in the air. The Pilot Classic (released at the end of the 2005-2006 season) doesn't have the bumper found on all NNN and SNS Profil bindings. These new boots and bindings provide a superior subtle kick through a spring loaded back slot for the back axis. Unlike the rubber bumpers, this spring has adjustable tension that can be changed in different snow conditions. Fischer has now started producing their new boots with the NNN system.

1c

Botas

1d

Palos

2

Describir y demostrar cómo los artículos anteriores se prepararán para el uso y el cuidado que se la dan tanto en el campo como durante fuera de temporada.

2a

2b

2c

2d

3

¿Qué consideración debe hacerse al seleccionar la ropa que debe usar mientras se hace esquí de fondo? ¿Qué características tendría que buscar a la hora de seleccionar un paquete para un viaje de esquí?

4

Demostrar correctamente las siguientes técnicas de esquiar:

4a

Zancadas plana con una buena patada, adquisición y la forma

4b

Movimiento con un solo palo, el cambio y con los dos palos

4c

Por el lado subiendo y bajando pendientes

4d

Subiendo la pendiente estilo Herriingbone

4e

Atravesar al lado subiendo la pendiente con zancadas de vuelta

4f

Escalada de pendiente hacia arriba

4g

Descenso recto corriendo bajo control, en pendiente de 20 grados (schuss)

4h

Moviéndose bajando la pendiente

4i

Arando nieve para frenar la velocidad y detenerse

4j

Sentado de espalda deteniéndose

5

Explicar los propósitos de encerar. Explicar brevemente la necesidad de diferentes ceras para diferentes clases de nieves y temperaturas.

6

Explicar las precauciones básicas de seguridad a seguir en el esquí de fondo.

7

Conocer y explicar las normas de conducta oficiales nacionales de esquí de fondo.

8

Demostrar capacidad de esquiar de la siguiente manera:

8a

Tomar tres senderos de 3 millas (4.5 km) separados con otro individuo. Si es posible, tener diferentes condiciones de nieve.

8b

Tomar un viaje de 10 millas (16 km) en diversos terrenos.

8c

Durante todos los recorridos es necesario llevar el equipo (de seguridad) y usar ropa adecuada para las condiciones demostrando la capacidad de mantener su propia temperatura corporal, sequedad y condición.