# Strains at Materion Precision Optics and Thin Film Coatings, Inc.
> OSHA SIR `20231110365` · 11/9/2023 · WESTFORD, MASSACHUSETTS
## Severity
- **1 hospitalization**
- **Body part:** Back, including spine, spinal cord, unspecified
- **Nature of injury:** Strains
## Cause
- **Event:** Overexertion in holding, carrying, or wielding-single episode
- **Source:** Battery-vehicle
## Employer
- **Name:** Materion Precision Optics and Thin Film Coatings, Inc.
- **Location:** 2 Lyberty Way, WESTFORD, MASSACHUSETTS, 01886
- **NAICS:** 333314
- **Jurisdiction:** 1
## Narrative

An employee was carrying two 52-pound truck batteries when they suffered a back strain.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*