Is a 26°C indoor temperature safe for older adults when wearing everyday clothes or doing normal activities?

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Researchers will expose older adult participants to simulated indoor temperature conditions around the 26°C upper limit while varying clothing insulation and routine activity levels to mimic daily life. Participants will be monitored for physiological signs of heat strain such as heart rate, blood pressure, body temperature, and subjective heat perception. The study includes non-smoking English- or French-speaking adults with or without controlled hypertension or longstanding type 2 diabetes, excluding those with serious complications or uncontrolled blood pressure. Data will be used to determine whether the 26°C recommendation remains protective once clothing and activity-related internal heat production are considered.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Non-smoking.
* English or French speaking.
* Ability to provide informed consent.
* with or without a) chronic hypertension (elevated resting blood pressure; as defined by Heart and Stroke Canada and Hypertension Canada), b) type 2 diabetes as defined by Diabetes Canada, with at least 5 years having elapsed since time of diagnosis

Exclusion Criteria:

* Episode(s) of severe hypoglycemia (requiring the assistance of another person) within the previous year, or inability to sense hypoglycemia (hypoglycemia unawareness).
* Serious complications related to your diabetes (gastroparesis, renal disease, uncontrolled hypertension, severe autonomic neuropathy).
* Uncontrolled hypertension - BP \>150 mmHg systolic or \>95 mmHg diastolic in a sitting position.
* Restrictions in physical activity due to disease (e.g. intermittent claudication, renal impairment, active proliferative retinopathy, unstable cardiac or pulmonary disease, disabling stroke, severe arthritis, etc.).
* Use of or changes in medication judged by the patient or investigators to make participation in this study inadvisable.
* Cardiac abnormalities identified during screening

Where it's running

• University of Ottawa
  Ottawa, Ontario, Canada Recruiting

Study contacts

• Principal investigator: Glen Kenny, PhD — University of Ottawa
• Study coordinator: Glen P Kenny, PhD
• Email: gkenny@uottawa.ca
• Phone: 6135625800

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.