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要旨:本研究は,指腹つまみにおいて指間距離とつまみ力の関係を調査することを目的とした.対象は20歳代の健常者20名で,右側の母指・示指間,母指・中指間の指腹つまみ力を5種類の指間距離で無作為に測定した.結果は,指腹つまみ力と指間距離の間には直線回帰が認められた.指腹つまみ力は,指間距離が増加するとつまみ力も増加し最小の指間距離に比較して最大では,平均35〜60%高値を示した.指腹つまみ力は指間距離を一定として測定する必要があることが示唆された.
The purpose of this study was to examine the relationship between pulp-to-pulp distance and pinch strength. Pinch strength with five different pulp-to-pulp distances (8mm, 33mm, 53mm, 73mm, 93mm) were tested in twenty healthy adults. Significant positive correlations were found between pulp-to-pulp distances and pinch strengths.
Correlation coefficients ranged from 0.58 to 0.98 in males and 0.42 to 0.99 in females. Pinch strength with 93mm of pulp-to-pulp distance produced 35-60% higher strength than with 8mm of pulp-to-pulp distance. Our results suggest need for clinical standard method for measuring pinch strength.
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