Ignite Creation Date:
2024-10-26 @ 3:42 PM
Last Modification Date:
2024-10-26 @ 3:42 PM
Study NCT ID:
NCT06633302
Status:
RECRUITING
Last Update Posted:
None
First Post:
2024-10-04
Brief Title:
Physiological Strain in Older Adults During a Simulated Heat Wave
Sponsor:
None
Organization:
None
Study Overview
Official Title:
Evaluating the Efficacy of a 26C Indoor Temperature for Limiting Thermal and Cardiovascular Strain in Older Adults During a Simulated Multi-day Heat Event
Status:
RECRUITING
Status Verified Date:
2024-10
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
No
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
A recent report showed that maintaining indoor temperature at or below 26C safeguards older heat vulnerable adults against potentially dangerous increases in thermal and cardiovascular strain during an extreme heat event PMID 38329752 However this proposed limit does not consider the potential cumulative effect of successive days of heat exposure which could lead to a progressive deterioration in thermoregulatory and cardiovascular function and necessitate adjustments to upper indoor temperature limits Further thermal comfort and quality of sleep may be negatively impacted when bedroom temperatures exceed 24C PMID 3090680 On this basis some health agencies have recommended that bedroom temperatures at night should not exceed 26C unless ceiling fans are available PMID 3090680 Currently however it is unknown whether indoor overheating impairs sleep quality and physiological strain on a subsequent day in older adults and if so whether maintaining indoor temperature at 26C is sufficient to prevent these adverse health impacts
With rising global temperatures and more extreme heat events energy management strategies to limit the strain on the power grid during the daytime are now increasingly commonplace Thus understanding the benefits of maintaining indoor temperature at the recommend upper limits of 26C during the nighttime only on surrogate physiological indicators of health is an important step in understanding how to optimize protection for heat-vulnerable older adults when power outages occur
The investigators will assess the efficacy of proposed indoor temperature limits ie 26C in mitigating increases in core temperature and cardiovascular strain over three consecutive days 3 days 2 nights in older adults 60-85 years with indoor temperatures maintained at the recommend 26C at all times throughout the three days and without daytime temperature fixed at 34C temperature experienced in homes without air-conditioning during an extreme heat event with nighttime temperature at 26C access to daytime cooling By quantifying the effect of daylong indoor overheating on surrogate physiological outcomes linked with heat-related mortality and morbidity in older adults the investigators can determine if refinements in the recommended upper temperature threshold is required including best practices when power outages may occur during an extreme heat event
With rising global temperatures and more extreme heat events energy management strategies to limit the strain on the power grid during the daytime are now increasingly commonplace Thus understanding the benefits of maintaining indoor temperature at the recommend upper limits of 26C during the nighttime only on surrogate physiological indicators of health is an important step in understanding how to optimize protection for heat-vulnerable older adults when power outages occur
The investigators will assess the efficacy of proposed indoor temperature limits ie 26C in mitigating increases in core temperature and cardiovascular strain over three consecutive days 3 days 2 nights in older adults 60-85 years with indoor temperatures maintained at the recommend 26C at all times throughout the three days and without daytime temperature fixed at 34C temperature experienced in homes without air-conditioning during an extreme heat event with nighttime temperature at 26C access to daytime cooling By quantifying the effect of daylong indoor overheating on surrogate physiological outcomes linked with heat-related mortality and morbidity in older adults the investigators can determine if refinements in the recommended upper temperature threshold is required including best practices when power outages may occur during an extreme heat event
Detailed Description:
None
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None