네일 종사자의 진동드릴 사용이 상지 기민성 및 고유수용성 감각에 미치는 즉각적 효과 = Immediate Effects of a Vibrating Nail Drill on Upper Extremity Dexterity and Digit Proprioception in Nail Technicians

다국어 초록 (Multilingual Abstract)

This study aimed to investigate the immediate effects of vibrating nail drill work on upper extremity dexterity, digit proprioception, and subjective discomfort in nail technicians. The participants were 20 right-handed female nail technicians. All participants performed a 20-minute vibrating nail drill task using a nail drill handpiece from Company R, which weighed at least 150 g and operated at 20,000 rpm or higher, and an XC-grit bit from Company W corresponding to an extra-coarse grit. Upper extremity dexterity was assessed using the Purdue Pegboard Test, digit proprioception was assessed using a 3㎝ grip aperture reproduction test, and subjective discomfort was measured using a Visual Analogue Scale （VAS）. The collected data were analyzed using paired t-tests to compare pre- and post-task values. The results showed that upper extremity dexterity significantly decreased after the vibrating nail drill task, while digit proprioception reproduction error and subjective discomfort significantly increased. These findings suggest that vibrating nail drill work may have immediate effects on upper extremity dexterity and digit proprioception and may increase subjective discomfort in nail technicians. This study highlights the need for work management and preventive education to protect hand function during nail drill work.

목차 (Table of Contents)

• （Abstract）
• Ⅰ. 서 론 1
• Ⅱ. 연구 방법 4
• 1. 연구 대상 4
• 2. 실험 절차 및 실험 방법 5
• 3. 측정도구 9
• 4. 통계 분석 14
• Ⅲ. 연구 결과 15
• 1. 연구 대상자의 일반적인 특성 15
• 2. 드릴 작업 전후의 측정값 변화 비교 16
• 1） 상지 기민성의 변화 17
• 2） 수지 고유수용성 감각 변화 18
• 3） VAS 변화 19
• 3. 주요 변수 변화량 간 상관 분석 20
• Ⅳ. 고 찰 21
• Ⅴ. 결 론 24
• 참고 문헌 26