協調受到動作者屬性及外在條件制約所影響，亦即個體、工作與環境限制，三者交互作用引致個體最適化協調之產出。本研究立基於動作協調觀點，欲藉由個體與工作限制之操弄，探究兩者對於書寫表現之影響。本研究招募36名未受書法相關專業訓練之成人參與者，依書寫者執筆手與書寫姿勢分為：右慣用手非迴腕書寫者、左慣用手迴腕書寫者以及左慣用手非迴腕書寫者三種書寫者類型，每組12名；相依變項為書寫工具筆尖性質（硬筆與軟筆）及執筆手（慣用手與非慣用手），於不同書寫情境下進行漢字草書連筆書寫任務，分析書寫樣本與六自由度磁力追蹤儀所記錄之資料，以3（組別）x 2（筆尖性質）x 2（執筆手）混合設計三因子變異數分析，後二因子為重複量數，針對每秒書寫面積、各關節交叉相關係數與關節角度變異進行統計考驗，檢證書寫表現與肢體內協調形式的變化與差異。結果顯示書寫者類型、筆尖性質與執筆手會交互影響書寫表現，不同書寫者類型與執筆手會有不同之動作協調形式，不同書寫工具會引致協調形式之改變。

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