Trial · NCT07852910
Indoor Overheating and Physiological Strain in Older Adults With COPD
NCT07852910, Not applicable, Not yet recruiting, University of Ottawa
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Indoor Overheating and Physiological Strain in Older Adults With COPD. Trials, record NCT07852910. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT07852910
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Indoor Overheating and Physiological Strain in Older Adults With COPD
- NCT number
- NCT07852910
- Status
- Not yet recruiting
- Phases
- Not applicable
- Enrollment
- 18 participants, estimated
- Lead sponsor
- University of Ottawa
- Conditions
- Chronic Obstructive Pulmonary Disease (COPD), Heat Stress
- Interventions
- Simulated indoor thermal environment
- First posted
- 2026-10-01
- Last updated
- 2026-10-05
Source ClinicalTrials.gov
Registered outcomes30
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Core temperature (Peak) | End of 8-hour exposure | Peak rectal temperature (15 min average) during exposure. Rectal temperature is measured continuously throughout the simulated indoor overheating exposure. |
| Secondary | Profiles of Mood States (POMS) | At the start (hour 0) and end of exposure (hour 8) | Potential changes in mood (7 subscales of mood: tension, anger, depression, fatigue, confusion, vigor and esteem-related affect). The POMS-40 is a validated, self-administered questionnaire that examines seven distinct aspects of mood state across two positive subscales (Esteem-Related Affect, and Vigor) and five negative subscales (Fatigue, Tension, Confusion, Anger, and Depression), which are described across 40 distinct adjectives. For each individual item, participants were asked to describe "how you feel right now" by responding using a 5-point Likert scale (0 = "Not at all", 1 = "A little", 2 = "Moderately", 3 = "Quite a lot", or 4 = "Extremely"). The values of items associated with a specific subscale (e.g., Fatigue) were summed to calculate its score. |
| Secondary | Environmental Symptoms Questionnaire (ESQ) | At the start (hour 0) and end of exposure (hour 8) | Self-reported environmental reactions and medical symptomatology associated with prolonged heat exposure. The ESQ-IV is a validated 68-item, self-administered questionnaire that has been used successfully in identifying symptomatology during exposure to a wide variety of environmental conditions, including heat exposure \[24, 25\]. Participants are asked to assess and described "how you have been feeling today" by responding to each item using a 6-point Likert scale (0 = "Not at all", 1 = "Slight", 2 = "Somewhat", 3 = "Moderate", 4 = "Quite a bit", or 5 = "Extreme"). Total Symptom Score was calculated from this data by taking the sum of the intensity ratings from all 68 individual items using reverse scores for the three positive items from the list ("I Felt Good", "I Felt Alert", and "I Felt Wide Awake"). |
| Secondary | Orthostatic intolerance symptoms assessment | At the start (hour 0) and end of exposure (hour 8) | Cumulative sum of scores on 6 questions asking participant to rank symptoms associated with orthostatic intolerance during the lying to standing tests. All symptoms scored on a scale from 0 (none) to 10 (worst possible) and include feelings of: (1) "dizziness, lightheadedness, feeling faint, or feeling like you might black out"; (2) "Problems with vision (blurring, seeing spots, tunnel vision, etc.)"; (3) "Weakness"; (4) "Fatigue"; (5) "Trouble concentrating"; and (6) "Head and neck discomfort". |
| Secondary | Perceived arousal (Felt Arousal Scale) | End of 8-hour exposure | Perceived arousal assessed using the Felt Arousal Scale, a single-item 6-point numerical rating scale on which participants respond to the question "How worked up are you?" Scores range from a minimum of 1 (low arousal) to a maximum of 6 (high arousal). |
| Secondary | Perceived thirst (Thirst Sensation Scale) | End of 8-hour exposure | Perceived thirst assessed using the Thirst Sensation Scale, a single-item 9-point numerical rating scale on which participants respond to the question "How thirsty do you feel now?" Scores range from a minimum of 1 to a maximum of 9, with verbal anchors at 1 (not thirsty at all), 3 (a little thirsty), 5 (moderately thirsty), 7 (very thirsty), and 9 (very, very thirsty). |
| Secondary | Thermal sensation (American Society of Heating, Refrigerating and Air-Conditioning Engineers thermal sensation scale) | End of 8-hour exposure | Thermal sensation assessed using the thermal sensation scale defined in ANSI/ASHRAE Standard 55 (American Society of Heating, Refrigerating and Air-Conditioning Engineers), a single-item 7-point bipolar rating scale on which participants respond to the question "How do you feel right now?" Scores range from a minimum of -3 (cold) to a maximum of +3 (hot), with 0 indicating a neutral thermal sensation. |
| Secondary | Thermal comfort (American Society of Heating, Refrigerating and Air-Conditioning Engineers thermal comfort scale) | End of 8-hour exposure | Thermal comfort assessed using the thermal comfort scale defined in ANSI/ASHRAE Standard 55 (American Society of Heating, Refrigerating and Air-Conditioning Engineers), a single-item 4-point rating scale on which participants respond to the question "How comfortable do you feel right now?" Scores range from a minimum of 1 (comfortable) to a maximum of 4 (very uncomfortable). |
| Secondary | Change in plasma volume | End of 8-hour exposure | Change in plasma volume from baseline values calculated from duplicate measurements of hemoglobin and hematocrit at the start and end of each exposure using the technique by Dill and Costill |
| Secondary | Fluid loss | End of 8-hour exposure | Fluid loss calculated as the change in body mass during each exposure presented as a percentage of baseline body mass (corrected for food consumption) |
1 to 10 of 30Source ClinicalTrials.gov
See all 30 registered outcomesOutcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers0
The papers the trial lists on ClinicalTrials.gov.
None in this release.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests1
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
| Test | Named as |
|---|---|
| Stroop Color-Word Test | Secondary outcome |
Source ConductCognition
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT07852910
GET https://conductscience.org/api/trials/v1/NCT07852910/registered?page=2