Changes in Hydration Status of PepsiCo Frontline Workers in a Manufacturing Facility Over the Course of Multiple Shifts

NCT07117773 | Completed

• 1 other identifier: PEP-2509
• Study Type: observational
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

Physically demanding occupations (PDO) require high levels of energy expenditure, mental acuity, and technical skills. Sometimes this work is performed in extreme environments during hot/humid summer months. Previous research shows that dehydration and heat stress can increase risk of heat-related illness, reduced cognitive function, and work capacity. While this impact of physically demanding work in extreme environmental conditions is often studied in firefighters, military personnel, and athletes, and even agricultural workers, manufacturing and warehouse workers ("the industrial athlete") are underrepresented in the literature. The purpose of the study is to examine the impact hydration status of the industrial athlete (i.e., frontline manufacturing and warehouse workers at PepsiCo facilities) prior to, during, and after their shift over a typical work week has on work performance. Note: Recruitment is limited to PepsiCo Frontline Employees Only. Do not contact study official for enrollment.

Conditions

Hydration Status

Keywords

hydration; ergonomics; industrial worker; observational

Outcome Measures

Primary Outcomes (2)

• Acute Urine Specific Gravity

  USG digital pen refractometer (au)

  Post-shift USG compared to pre-shift USG (8-12 hours from baseline) on consecutive test day 1-4 over calendar week.

• Chronic Urine Specific Gravity

  Digital pen refractometer (au)

  pre- and post- 8-12 hour shift USG on the last test day compared to pre- and post-8-12 hour shift USGs at baseline. Over 4 consecutive test days during a calendar week.

Secondary Outcomes (12)

• Urine Color

  15 minutes pre- 9-12 hour shift and 15 minutes post- 8-12 hour shift, consecutive test day 1-4 over a calendar week.

• Body Weight

  15 minute pre- 8-12 hour shift on the first test day

• Sweat Loss

  over the course of an 8-12 hour shift, consecutive test day 2-4 over a calendar week.

• Sweat Rate

  over the course of an 8-12 hour shift, consecutive test day 2-4 over a calendar week.

• Sodium Concentrations

  over the course of an 8-12 hour shift, consecutive test day 2-4 over a calendar week.

Study Arms (1)

Observational

PepsiCo Frontline Workers

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Frontline manufacturing and warehouse workers at Orlando PBNA Bottling Facility

You may qualify if:

• Self-identify as a healthy male or female
• Subject is 18-65 years of age
• The subject is currently employed by PepsiCo at a bottling facility
• Subject can read and comprehend English
• Subject has worked for PepsiCo for 2 months or longer
• Willing to agree with what is outlined in the informed consent form.

You may not qualify if:

• Subject has an allergy to adhesives
• Female subject is pregnant or nursing

Sponsors & Collaborators

• PepsiCo Global R&D: lead

Study Sites (1)

Gatorade Sports Science Institute

Bradenton, Florida, 34210, United States

Location

Study Officials

• Philip Agostinelli, PhD

  PepsiCo R&D/Gatorade and Sports Science Institute

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: August 5, 2025
• First Posted: August 12, 2025
• Study Start: August 8, 2025
• Primary Completion: August 22, 2025
• Study Completion: August 24, 2025
• Last Updated: September 12, 2025

Record last verified: 2025-09

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)