Work Design Interventions for Heat Resilience

NCT ID: NCT06599788

Last Updated: 2025-06-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

32 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-09-30

Study Completion Date

2028-09-30

Brief Summary

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The goal of this project is to compare different ways to schedule a workday to see if older workers should follow a specific work protocol to reduce strain on the heart and muscles.

Participants will come to the lab a total of six times. During four of the visits participants will complete a box carrying task, simulating unloading a delivery truck. This will take place in a hot and humid room to simulate being outdoors during the summer.

Detailed Description

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Conditions

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Hyperthermia Fatigue; Heat Work-Related Condition

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Standard work pace first

The order of the interventions is standard work pace first, followed by the other interventions in a permuted block randomization design.

Group Type ACTIVE_COMPARATOR

Standard work pace

Intervention Type BEHAVIORAL

Participants will work at a standard pace of one box per minute during the box carrying protocol

Reduced-pace work

Intervention Type BEHAVIORAL

Participants will work at a slower pace than the standard work pace of the box carrying protocol

Increased-pace work

Intervention Type BEHAVIORAL

Participants will work at a faster pace than the standard work pace of the box carrying protocol

Additional rest breaks

Intervention Type BEHAVIORAL

Participants will work at the standard work pace during the box carrying protocol and have superimposed 5 minutes of rest every 30 minutes.

Reduced-pace work first

The order of the interventions is reduced-pace work first, followed by the other interventions in a permuted block randomization design.

Group Type EXPERIMENTAL

Standard work pace

Intervention Type BEHAVIORAL

Participants will work at a standard pace of one box per minute during the box carrying protocol

Reduced-pace work

Intervention Type BEHAVIORAL

Participants will work at a slower pace than the standard work pace of the box carrying protocol

Increased-pace work

Intervention Type BEHAVIORAL

Participants will work at a faster pace than the standard work pace of the box carrying protocol

Additional rest breaks

Intervention Type BEHAVIORAL

Participants will work at the standard work pace during the box carrying protocol and have superimposed 5 minutes of rest every 30 minutes.

Increase-paced work first

The order of the interventions is increased-pace work first, followed by the other interventions in a permuted block randomization design.

Group Type EXPERIMENTAL

Standard work pace

Intervention Type BEHAVIORAL

Participants will work at a standard pace of one box per minute during the box carrying protocol

Reduced-pace work

Intervention Type BEHAVIORAL

Participants will work at a slower pace than the standard work pace of the box carrying protocol

Increased-pace work

Intervention Type BEHAVIORAL

Participants will work at a faster pace than the standard work pace of the box carrying protocol

Additional rest breaks

Intervention Type BEHAVIORAL

Participants will work at the standard work pace during the box carrying protocol and have superimposed 5 minutes of rest every 30 minutes.

Additional rest breaks first

The order of the interventions is additional rest breaks first, followed by the other interventions in a permuted block randomization design.

Group Type EXPERIMENTAL

Standard work pace

Intervention Type BEHAVIORAL

Participants will work at a standard pace of one box per minute during the box carrying protocol

Reduced-pace work

Intervention Type BEHAVIORAL

Participants will work at a slower pace than the standard work pace of the box carrying protocol

Increased-pace work

Intervention Type BEHAVIORAL

Participants will work at a faster pace than the standard work pace of the box carrying protocol

Additional rest breaks

Intervention Type BEHAVIORAL

Participants will work at the standard work pace during the box carrying protocol and have superimposed 5 minutes of rest every 30 minutes.

Interventions

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Standard work pace

Participants will work at a standard pace of one box per minute during the box carrying protocol

Intervention Type BEHAVIORAL

Reduced-pace work

Participants will work at a slower pace than the standard work pace of the box carrying protocol

Intervention Type BEHAVIORAL

Increased-pace work

Participants will work at a faster pace than the standard work pace of the box carrying protocol

Intervention Type BEHAVIORAL

Additional rest breaks

Participants will work at the standard work pace during the box carrying protocol and have superimposed 5 minutes of rest every 30 minutes.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Healthy individuals
* 18-29 years old and 40-65 years old
* Completes at least 120 minutes of moderate to vigorous physical activity each week for at least the past 4 weeks
* Resistance trained or have recently held a job involving box carrying or a similar task

Exclusion Criteria

* History of cardiovascular, metabolic, respiratory, neural, or renal disease
* Hypertensive (systolic blood pressure \> 139 mmHg or diastolic blood pressure \> 89 mmHg) or tachycardic (resting heart rate \> 100 bpm) during the screening visit
* Current nicotine use or previous use within the past 6 months
* Current of previous musculoskeletal injury limiting physical activity
* A positive pregnancy test at any point during the study
* Currently breastfeeding
* Study physician discretion based on any other medical condition or medication
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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State University of New York at Buffalo

OTHER

Sponsor Role lead

Responsible Party

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Riana Pryor

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Central Contacts

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Riana Pryor

Role: CONTACT

716-829-5456

Other Identifiers

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STUDY00112233

Identifier Type: -

Identifier Source: org_study_id

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