目的：探討工作強化訓練協助泥水鑽土業職傷勞工重返職場的成效。方法：個案為50歲男性，從事泥水鑽土職業7年，因長期操作重複振動的工具，引發左肩部肌腱炎、左腕隧道症候群、與左尺神經麻痺症狀。接受17週、每週3小時的工作強化訓練，強化內容包括疼痛酸麻自我檢視、上肢關節運動、負重訓練、肌腱滑動運動、工作姿勢衛教、工作模擬訓練、現場試做、與職務再設計。結果：結案評估時疼痛自我評量分數、左肩關節活動度、負重能力、生活品質各方面呈現明顯進步，配合職務再設計的調整已可復工。結論：本案例結果顯示個案參與工作強化訓練後，對其復工有所幫助。建議加強工作強化與醫療資源的整合、與工作強化概念的推廣，使職傷勞工能及早接受工作強化服務。

Objective: This case study was to introduce the effects of a work hardening program designed for a construction driller who suffered work-related musculoskeletal injury. Methods: The 50-year-old male worker was diagnosed as left shoulder tendinosis, carpal tunnel syndrome and ulnar nerve palsy on left hand. He had worked as a driller handling vibration hand tools for seven years. He attended the three-hour work hardening program once a week for seventeen weeks. The program consisted of self-monitoring on pain, joint mobilization, muscle strengthening, and tendon-gliding exercise for upper extremity, ergonomic education, work simulation, work-site try-out and job accommodation. Results: The subject showed improvements on pain tolerance, range of motion of left shoulder, strength, and quality of life. Conclusion: The work hardening program was effective for returning the injured worker back to work. For better service, the integration of work-hardening services and medical resources, as well as the promotion of work hardening services, were recommended to recruit injured workers as early as possible.