MGart File: A New Generation Tool for Nail Modeling - Ergonomics, Safety, and Comparative Analysis

Citation: Mariya Gavdey, "MGart File: A New Generation Tool for Nail Modeling - Ergonomics, Safety, and Comparative Analysis", Universal Library of Medical and Health Sciences, Volume 02, Issue 02.

Copyright: This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background: Nail technicians perform 500-700 reciprocating hand movements per client (up to 3,500 per day), leading to chronic musculoskeletal disorders (MSDs). Traditional files (35-45 g, rigid plastic base) contribute to fatigue and injury. Objective: To present and evaluate a new generation nail file (MGart) with a stainless steel base, replaceable abrasive strips (100/180 grit), controlled flexibility, and reduced weight (19 g), and to assess its ergonomic impact. Methods: A comparative, non-randomized, cross-sectional study involving 42 professional nail technicians was conducted. Each master performed standard nail modeling procedures using traditional plastic-based files (n=20), competitors’ metal-based files (n=12), and MGart files (n=10). The number of hand movements was recorded via video. Subjective ergonomic comfort was measured using a 10-point Likert scale. Abrasive accuracy was verified microscopically. Statistical analysis included descriptive statistics and Student’s t-test. Results: The MGart file weighs 19 g - 80% lighter than traditional files (40±5 g). Daily load calculation: 5 clients × 700 movements × 0.04 kg = 140 kg (traditional) vs. 66.5 kg (MGart), saving 73.5 kg per day, 19.4 tons per year (˜13 cars). Controlled flexibility was confirmed by 38/42 masters (90.5%). Abrasive grit (100/180) matched declared values. Subjective ergonomic score: MGart - 9.2/10, traditional plastic - 4.0/10 (p<0.001), metal competitors - 6.5/10 (p<0.01). Discussion: The reduction in cumulative load (37 tons/year vs. 19 tons/year) correlates with lower risk of carpal tunnel syndrome and other occupational MSDs, as supported by epidemiological studies [1-4]. The spring-like flexibility mimics the natural nail contour, reducing trauma. Limitations include the absence of formal ethics committee approval (only verbal informed consent) and a small sample size. Conclusion: The MGart file significantly reduces occupational load and improves ergonomic comfort compared to traditional plastic and metal competitor files. Further longitudinal studies are needed to confirm reduction in MSD incidence.

Keywords: Carpal Tunnel Syndrome Prevention, Ergonomics of Manicure Tools, Hand Fatigue Reduction, Musculoskeletal Disorders, Occupational Health In Beauty Industry.

https://doi.org/10.70315/uloap.ulmhs.2024.0202010