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Three-Jaw Chuck Pinch Strength and its Correlation with Hand Depth in Electronics Technicians
1Dr Shahnawaz Akter, Assistant Professor, Department of Anatomy, MARKS Medical College & Dental Unit, Dhaka, Bangladesh;
Mymensingh Medical Journal : MMJ
|October 4, 2021
Summary
Electronics technicians exhibit stronger three-jaw chuck pinch strength and greater hand depth compared to sedentary workers. This pinch strength positively correlates with hand depth, especially in those with more work experience.
Area of Science:
- Anatomy
- Occupational Health
- Ergonomics
Background:
- Pinch strength, specifically the three-jaw chuck pinch, is influenced by physical activity and health.
- Understanding hand anthropometry and strength is crucial for occupational assessments.
Purpose of the Study:
- To investigate the correlation between three-jaw chuck pinch strength and hand depth in male electronics technicians in Dhaka.
- To establish baseline data for occupational health and ergonomic research in Bangladesh.
Main Methods:
- A cross-sectional analytical study involving 100 male electronics technicians (case group) and 100 sedentary workers (control group).
- Measurements included hand depth using digital slide calipers and three-jaw chuck pinch strength using a pinch gauge.
- Subjects were selected via convenient purposive sampling; technicians were subgrouped by work experience.
Main Results:
- Electronics technicians demonstrated significantly higher mean three-jaw chuck pinch strength and hand depth compared to sedentary workers (p<0.05).
- A significant positive correlation was found between three-jaw chuck pinch strength and hand depth within the electronics technician group.
- Technicians with more work experience showed significantly higher mean pinch strength and hand depth than those with less experience (p<0.05).
Conclusions:
- Occupational factors, like those in electronics technicians, can enhance hand strength and depth.
- Hand depth is a significant predictor of three-jaw chuck pinch strength in this population.
- Findings provide valuable data for ergonomic assessments and injury prevention in similar occupational settings.
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