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Il pattinaggio su ghiaccio è l'azione di muoversi sul ghiaccio usando appositi pattini, che consistono in strette lame (a volte dal profilo parabolico) agganciate ad apposite scarpe (o, in tempi antichi, legate alle scarpe normali).
Nei paesi dal clima sufficientemente rigido, è possibile praticarlo all'aperto, sulla superficie di laghi, fiumi e canali sulla cui superficie si sia formato uno strato di ghiaccio abbastanza spesso e robusto da sostenere il peso dei pattinatori. In tale caso il pattinaggio sul ghiaccio può essere utilizzato come un vero e proprio metodo di trasporto, soprattutto nelle zone in cui nella stagione fredda gli altri mezzi di trasporto e le altre vie di comunicazione sono difficilmente praticabili.
Inoltre il pattinaggio su ghiaccio viene praticato per piacere personale e per sport.
Per questi scopi è praticato, oltre che sulle superfici naturalmente ghiacciate, sul ghiaccio di strutture appositamente costruite. Tali strutture, solitamente dette palazzetti del ghiaccio, sono chiuse e il ghiaccio è prodotto e mantenuto attraverso sistemi di refrigerazione. Hanno quindi il vantaggio di poter essere realizzate in qualunque parte del mondo.
Alcuni sport relativi al pattinaggio sul ghiaccio sono sport olimpici.
Si ritiene che il pattinaggio su ghiaccio abbia avuto origine attorno al 3000 A.C. nei paesi scandinavi e nell'estremo nord-est europeo[1] con pattini e lame di osso di bue o di una particolare razza di cavalli[2]. I pattini erano un mezzo di trasporto efficace sulle superfici ghiacciate di laghi e fiumi, ma paragonati con gli attrezzi odierni non erano molto efficienti[3] tant'è che il pattinatore si aiutava con un bastone per darsi la spinta e mantenere l'equilibrio.
Pattinare sui canali ghiacciati con pattini di legno si diffuse particolarmente nei Paesi Bassi sin dalla fine del 1300. Lo testimonia l'opera "Vita alme virginis Lijdwine" di Johannem Brugman, che narra la vita di santa Liduina di Schiedam paralizzata a causa di una caduta sui pattini e per questo eletta a patrona dei pattinatori.
Attorno al 1585, durante l'esilio in Olanda del re inglese Carlo II, suo figlio James duca di Monmouth si impratichisce di pattinaggio e al suo rientro in patria diffonde il nuovo sport presso l'aristocrazia inglese[4].
Il pattinaggio su ghiaccio raggiungerà diffusione internazionale nel corso del XVIII secolo.
Il pattinaggio sul ghiaccio è reso possibile dal ridottissimo attrito tra la superficie del ghiaccio e la lama metallica del pattino. Il pattinatore tuttavia può controllare il proprio movimento attraverso minime inclinazioni della lama durante il moto.Nel pattinaggio artistico, i pattinatori svolgono movimenti, salti, piroette e passi per formare una "coreografia" chiamata solitamente programma, numero, disco, danza. I salti esistenti sono:
L'axel, il salcow, il toeloop, il rittberger, il flip e il lutz. Si possono svolgere semplici, doppi, tripli, e quadrupli. Le gare per i ragazzi sono divise in tre categorie: interregionali, nazionali, elite.Questa voce o sezione sull'argomento sport invernali non cita le fonti necessarie o quelle presenti sono insufficienti. Puoi migliorare questa voce aggiungendo citazioni da fonti attendibili secondo le linee guida sull'uso delle fonti. Segui i suggerimenti del progetto di riferimento. |
Si possono anche eseguire combinazioni a piacimento, ad esempio un salto puntato con un salto non puntato oppure due salti della stessa tipologia.
Solitamente i salti secondari usati per completare combinazioni sono il toeloop e il rittberger. Per ogni salto vengono assegnati dei precisi punti, così come per ogni combinazione. Il salto può ricevere le seguenti valutazioni: -3 se è sbagliato completamente oppure è caduto; -2 se viene eseguito male, con piccole imperfezioni; -1 se viene fatta qualche sbavatura; 0 se è pulito ma non spettacolare; +1 se gli viene conferito qualcosa in più rispetto alla norma; +2 se è alto, scorrevole, veloce e pulito; +3 se è davvero bellissimo.
Le trottole sono dei "giri" su sé stessi eseguibili in moltissimi modi differenti. Alcuni di questi sono la sitz (seduta), la waget (angelo) oppure una semplice in piedi e costituiscono le tre posizioni base.
Solitamente in un programma libero vengono completate tre trottole, una saltata, una rovesciata e una combinata. Una trottola di base, semplice, senza variazioni o cambi di piedi vale 1. Più si aggiungono difficoltà più ne aumenta il livello, fino ad arrivare a un massimo di 4. Bisogna però prestare attenzione al fatto che il livello di difficoltà non è necessariamente legato alla valutazione: infatti può essere meglio eseguire una trottola semplice, prendendo un punteggio non molto alto, piuttosto che azzardarne una da livello 4 sbagliandola e facendo scendere il punteggio.
This article uses material from the Wikipedia article "Pattinaggio su ghiaccio", which is released under the Creative Commons Attribution-Share-Alike License 3.0. There is a list of all authors in Wikipedia
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Polo
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Street sports
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Tag games
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Rafting
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Rowing
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Competitive swimming
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Kindred activities
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Subsurface and recreational
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Weightlifting
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Marker sports
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Musical sports
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Fantasy sports
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• Hunger Games(Gladiating)
• Pod Racing
• Mortal Kombat(MMA)
Other
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Overlapping sports
• Tennis
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• Polo
Skating sports
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• Figure skating
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• Ice dancing
• Ice skating
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• Rinkball
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• Roller skating
• Short track speed skating
• Skater hockey
• Speed skating
• Synchronized skating
Freestyle skiing
• Snowboarding
• Ski flying
• Skibob
• Snowshoeing
• Skiboarding