本研究之目的為一探討工作姿勢與手持穩定度之相關研究。本研究測量4種不同姿 勢下之手持穩定度, 並對手持穩定度和性別、體型指數 (Ponderal Index, PI 值 )、手之 懸空與否之關係加以探討。 本研究記錄了 4 種不同姿勢下,受試者在蹲、半蹲、坐、站等 姿勢之手持穩定度。研究結果顯示,各種姿勢下手持穩定度之大小確有不同。本研究受試者 在 4 種不同姿勢下之手持穩定度平均大小順序為坐、蹲、半蹲、站。 然而,手持穩定度和 性別、體型指數、手之懸空與否,雖有差異但並未達統計上顯著水準。 The research discussed about the influence of Work-Postures, Ponderal Index and gender on Hand Dexterity. Twenty-one subjects were participated in the experiment. The analysis of data was processed with SAS/PC. The result showed that: (1)Four kind of Work-Postures (Sitting, Squatting, Half-Squatting, and Standing) had significant differences on Hand Dexterity. (2)There had no significant differences on the p Ponderal Index and gender on Hand Dexterity.