Efficacy of Electric Fans in Children During Heat Waves
NCT07864103, Not applicable, Recruiting, University of Ottawa
Trial 10
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
| Field | Value | Source |
|---|---|---|
| Title | Efficacy of Electric Fans in Children During Heat Waves | ClinicalTrials.gov |
| NCT number | NCT07864103 | ClinicalTrials.gov |
| Status | Recruiting | ClinicalTrials.gov |
| Phases | Not applicable | ClinicalTrials.gov |
| Enrollment | 60 participants, estimated | ClinicalTrials.gov |
| Lead sponsor | University of Ottawa | ClinicalTrials.gov |
| Conditions | Heat Stress, Physiological Stress, Child Development | ClinicalTrials.gov |
| Interventions | Simulated exposure to indoor overheating without fans, Simulated exposure to indoor overheating with fans | ClinicalTrials.gov |
| First posted | 2026-10-07 | ClinicalTrials.gov |
| Last updated | 2026-11-10 | ClinicalTrials.gov |
Registered outcomes 29
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description | Source |
|---|---|---|---|---|
| Primary | Core temperature (Peak) during daylong exposure to indoor overheating | End of 6 hour daylong exposure | Peak core (indexed by visceral temperature) temperature (15 min average) during exposure. Visceral temperature is measured continuously throughout the 6 hour exposure to the simulated indoor overheating. | ClinicalTrials.gov |
| Secondary | Profiles of Mood States (POMS) during daylong exposure to indoor overheating | At the start (hour 0) and end of 6 hour daylong exposure | 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 are 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) are summed to calculate its score. | ClinicalTrials.gov |
| Secondary | Environmental Symptoms Questionnaire (ESQ) during daylong exposure to indoor overheating | At the start (hour 0) and end of 6 hour daylong exposure | 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. 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 is 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"). | ClinicalTrials.gov |
| Secondary | Perceived exertion scale during daylong exposure to indoor temperature limit | At the start (hour 0) and end of 6 hour daylong exposure | Perceived exertional assessed via an ordinal scale ("How hard are you working?") ranging from "no exertional at all" to "maximal exertion" | ClinicalTrials.gov |
| Secondary | Activity levels (total steps taken) during daylong exposure to indoor overheating | End of 6 hour daylong exposure | Activity levels, quantified by number of steps taken per hour and totaled for each 6 hour exposure, assessed via a wearable accelerometer worn on the wrist and hip. | ClinicalTrials.gov |
| Secondary | Feel good scale during daylong exposure to indoor overheating | At the start (hour 0) and end of 6 hour daylong exposure | Feel good scale assessed via an ordinal scale (How good do you feel?) ranging from "very good" to "very bad" (midpoint: neutral) | ClinicalTrials.gov |
| Secondary | Thirst sensation scale during daylong exposure to indoor overheating | At the start (hour 0) and end of 6 hour daylong exposure | Thirst sensation assessed via an ordinal scale ranging from very, very thirsty to not thirsty at all. | ClinicalTrials.gov |
| Secondary | Thermal comfort scale during daylong exposure to indoor overheating | At the start (hour 0) and end of 6 hour daylong exposure | Thermal comfort assessed via an ordinal scale ("How comfortable does your body temperature feel?") ranging from "very uncomfortable" to "comfortable". | ClinicalTrials.gov |
| Secondary | Thermal sensation 2 scale during daylong exposure to indoor overheating | At the start (hour 0) and end of 6 hour daylong exposure | Thermal sensation assessed via an ordinal scale ("How do you feel?") ranging from "hot" to "cold" (midpoint: neutral) | ClinicalTrials.gov |
| Secondary | Thermal sensation scale during daylong exposure to indoor overheating | At the start (hour 0) and end of 6 hour daylong exposure | Thermal sensation assessed via an ordinal scale (How hot do you feel?) ranging from "extremely hot" to "neutral". | ClinicalTrials.gov |
| Secondary | Fluid loss during daylong exposure to indoor overheating | At end of 6 hour daylong 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). | ClinicalTrials.gov |
| Secondary | Fluid consumption during daylong exposure to indoor overheating | At end of 6 hour daylong exposure | Average hourly fluid consumption calculated by weighing participant water intake at the start and end of each hour of exposure (normalized to the exposure duration). | ClinicalTrials.gov |
| Secondary | Hydration status during daylong exposure to indoor overheating | At the start (hour 0) and end of 6 hour daylong exposure | Hydration status measured via assessing the urine specific gravity of a urine sample. | ClinicalTrials.gov |
| Secondary | BTrackS Balance Assessment during daylong exposure to indoor overheating (postural stability) | At the start (hour 0) and end of 6 hour daylong exposure | To assess postural stability, participants will be asked to stand on a BTracks force plate with their feet spread out to shoulder width, hand on their hips and eyes closed. The assessment will comprise of four trials (one practice trial) lasting 20 seconds in length and 20 seconds between trials. Center of pressure (COP) vector data along vertical (y) and horizontal (x) axes will be summed for the total path excursion length (cm) during each trial | ClinicalTrials.gov |
| Secondary | Executive function during daylong exposure to indoor overheating (cognitive function). | At the start (hour 0) and end of 6 hour daylong exposure | Participants will be provided with a tablet device with the Sway Medical testing platform for the assessment of executive function. Participants will complete the Cued Stroop test, in which they are presented a sequence of congruent, neutral and incongruent color-word tasks. | ClinicalTrials.gov |
| Secondary | CDC 4-Stage Balance Test during daylong exposure to indoor overheating (postural stability). | At the start (hour 0) and end of 6 hour daylong exposure | To assess postural stability, participants hold a tablet to their chest, then auditory cues guide participants through four consecutive stances, feet side by side, instep of one foot touching the big toe of the other foot, tandem stand with one foot in front of the other, heel touching toe, and stand on one foot. The balance assessment will be evaluated based on movement detected by an accelerometer integrated into the hardware of the tablet device (Sway Medical Inc). | ClinicalTrials.gov |
| Secondary | Memory recall during daylong exposure to indoor overheating (cognitive function). | At the start (hour 0) and end of 6 hour daylong exposure | Participants will be provided with a tablet device with the Sway Medical testing platform for the assessment of memory recall. Participants complete both a delayed recall test and a working memory test. | ClinicalTrials.gov |
| Secondary | Impulse control during daylong exposure to indoor overheating (cognitive function). | At the start (hour 0) and end of 6 hour daylong exposure | Participants will be provided with a tablet device with the Sway Medical testing platform for the assessment of impulse control. Participants will be asked to respond to both "go" and "no-go" visual cues. In response to the "go" cue, participants will initiate a movement of the device. | ClinicalTrials.gov |
| Secondary | Reaction time during daylong exposure to indoor overheating (cognitive function). | At the start (hour 0) and end of 6 hour daylong exposure | Participants will be provided with a tablet device with the Sway Medical testing platform for the assessment of reaction time. Participants will be asked to initiate a movement of the device in response to a visual cue. | ClinicalTrials.gov |
| Secondary | Diastolic blood pressure during daylong exposure to indoor overheating. | At the start (hour 0) and end of 6 hour daylong exposure | Diastolic blood pressure measured in triplicate via automated oscillometry (\~60 seconds between measures). | ClinicalTrials.gov |
Outcomes 0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
| Type | Outcome | Time frame | Population | Units | Measured as | Source |
|---|
Results by group 0
Each measurement the trial posted, group by group, in the words and numbers it posted.
| Outcome | Group | Category | Value | Spread | Units | Source |
|---|
Participant flow 0
How many started, completed or left each group, period by period.
| Period | Milestone | Group | Participants | Units counted | Source |
|---|
Adverse events 0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
| Type | Event | Organ system | Group | Affected | At risk | Events | Source |
|---|
Adverse event totals 0
The totals the trial posted for each group.
| Total | Group | Affected | At risk | Source |
|---|
Papers 0
The papers the trial lists on ClinicalTrials.gov.
| PMID | Listed as | Source |
|---|
Grants 0
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.
| Project | Title | Principal investigators | Organization | Funder | Fiscal years | Source |
|---|
Trial comparisons 0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
| Comparison | Source |
|---|
Tests 1
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 | Source |
|---|---|---|
| Stroop Color-Word Test | Secondary outcome | ConductCognition |
Source 5
| Field | Value | Source |
|---|---|---|
| Release | trials-2026-11-12-0.4.0 | ClinicalTrials.gov |
| Release manifest SHA-256 | 0f4a8d8c48aee2a7573ae0fa94ecbeab70c1adbe449bbc95c424bc7d3e97b9d4 | ClinicalTrials.gov |
| Registry capture | 2026-11-12 | ClinicalTrials.gov |
| Results copy, AACT | 2026-03-23 | ClinicalTrials.gov |
| NIH clinical studies file | 2026-11-13 | ClinicalTrials.gov |
Release trials-2026-11-12-0.4.0
ClinicalTrials.gov's posted results, through CTTI's AACT: ClinicalTrials.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.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
ClinicalTrials.gov: none stated ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
NIH RePORTER's clinical studies and project files: Public domain (NIH RePORTER)