Investigation of the Relationship between Occlusal Force, Jaw Stability, and Power Properties for Alpine Skiers

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  • アルペンスキー選手の咬合力，顎位安定性とパワー発揮特性に関する研究
  • アルペンスキー センシュ ノ コウゴウリョク,ガクイ アンテイセイ ト パワー ハッキ トクセイ ニ カンスル ケンキュウ

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Abstract

The purpose of this study is to determine whether or not occlusal force or total dental contact area have any relation to strength or speed type classifications. This was investigated with 23 male alpine skiers. Subjects were divided into strength（10 subjects）or speed（13 subjects）type groups based on their peak revolution frequency versus load on a power max VⅡ. Both occlusal force and total dental contact area were shown to correlate strongly with strength or speed type during all three steps of the power max VⅡtest. Strength type subjects’ occlusal force and dental contact area varied little from rest to maximum power output, while the speed types’ saw significant increases from rest to maximum power output for both occlusal force and total dental contact area. However, at rest the occlusal force and total dental contact area values were similar for each group. It appears that occlusal muscles are somehow related to speed type, but exactly how is currently unknown, though the relation is most likely neuronal.

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