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The Impact of Treadmills and Cooler Environments for Office Workplaces on Ergonomics, Heating Energy Requirements, Performance, as Well as Back and Cardiometabolic Health

NCT07140536 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 16

Last updated 2025-12-16

No results posted yet for this study

Summary

The aim of the project is to gain insights into the effects of treadmills at a standing desk and reduced room temperature on back and cardiometabolic health, cognitive performance, thermal comfort, and the associated heating energy requirements of buildings.

Healthy young men and women will spend four consecutive days in a controlled laboratory office environment after a baseline visit. During the baseline visit, volunteers are familiarized with the treadmill and start wearing a continuous glucose monitor. The four consecutive laboratory office days are each scheduled from 8:30AM to 04:30PM. In a randomized order, participants the first two office days either at 19°C or 23°C room temperature. The first office day of each temperature conditions is spent only sedentary, while for the second one is regularly interrupted with light walking on the treadmill. Otherwise, the daily routine and test battery will be exactly the same between days, including a standardized breakfast and lunch meal, an attention task in the morning, and frequent subjective thermal comfort ratings and blood pressure measurements. Interstitial glucose as well as heart rate and heart rate variability will be continuously monitored through wearable devices. Treadmill walking will be videorecorded.

Conditions

  • Healthy Male and Female Subjects

Interventions

OTHER

Environmental temperature

The office is day is spent in 19 or 23°C room temperature from 08:30AM to 04:30PM.

BEHAVIORAL

Physical activity

From 08:30AM to 04:30PM, the office is day is spent either fully sedentary or interspersed with light walking on a treadmill (60 min at 10:00AM, 15 min at 01:00PM, 15 min at 02:00PM, 15 min at 03:00PM, 15 min at 04:00PM).

Sponsors & Collaborators

  • RWTH Aachen University

    lead OTHER

Principal Investigators

  • Jan-Frieder Harmsen, PhD · RWTH Aachen University

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-07-03
Primary Completion
2025-08-31
Completion
2025-08-31

Countries

  • Germany

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07140536 on ClinicalTrials.gov