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Harness sizing and strap length configurations.

Hongwei Hsiao¹, Jennifer Whitestone, Stacie Taylor

¹Protective Technology Branch, National Institute for Occupational Safety and Health, 1095 Willowdale Rd., Morgantown, WV 26505, USA. hhsiao@cdc.gov

|November 11, 2009

Summary

This summary is machine-generated.

New fall-arrest harness sizing configurations accommodate diverse workforces. This study defined strap lengths and developed size options to improve worker safety and reduce injury risk from poor fit.

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Area of Science:

Occupational Safety and Ergonomics
Industrial Design
Human Factors Engineering

Background:

Current fall-arrest harness sizing is inadequate for the diverse modern workforce.
A need exists for updated harness configurations to ensure proper fit for all users.

Purpose of the Study:

To derive optimal strap lengths and adjustments for fall-arrest harnesses.
To develop effective harness size configurations for diverse populations.

Main Methods:

Utilized 3D torso anthropometric data from 243 women and 258 men.
Applied eight validated equations to establish a cost-effective harness sizing plan.
Defined specific strap lengths and adjustment ranges.

Main Results:

Identified two primary sizing options to accommodate 95%-98% of the target population.
Determined adjustable range goals for torso, thigh, and hip straps.
Recommended three to four sizes for both women and men.

Conclusions:

The proposed sizing system enhances fall-arrest harness fit and safety.
Specific strap adjustment ranges (15-17 cm torso, 20-23 cm thigh/hip) were defined.
This research provides crucial data for designing safer, better-fitting harnesses, reducing worker injury.