Ignite Creation Date:
2024-10-26 @ 3:37 PM
Last Modification Date:
2024-10-26 @ 3:37 PM
Study NCT ID:
NCT06543719
Status:
RECRUITING
Last Update Posted:
None
First Post:
2024-08-04
Brief Title:
Initial Stay Times and Heat Mitigation Controls for Uncompensable Occupational Heat Stress - Part II
Sponsor:
None
Organization:
None
Study Overview
Official Title:
Safe Maximum Work Times and the Effectiveness of Work-rest Allocations in Mitigating Increases in Core Temperature During and on the Day Following Prolonged Heavy-Intensity Work in the Heat in Young and Older Workers
Status:
RECRUITING
Status Verified Date:
2024-07
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:
Workplaces rely on upper heat stress limits provided by the American Conference of Governmental Industrial Hygienists ACGIH to manage the health and safety of workers in hot environments This is primarily achieved by interspersing work with rest periods the length of which is dictated by environmental conditions and work intensity to maintain core temperature at or below 380C equivalent to a 1C increase in body core temperature above resting levels However these guidelines employ a one size fits all approach to exposure limits that does not consider individual variation eg age between workers Moreover they fail to provide direction on the safe initial stay times before these heat-mitigation controls should be employed ie rest breaks in conditions exceeding upper heat stress limits While recent work has generated estimates of the initial stay times for young to older men before heat-mitigation controls are required for moderate-intensity work information on initial stay times for heavy-intensity work remains to be assessed This project will assess the initial stay times for heavy-intensity work for a single work bout as well as for a second work bout that is preceded by an extended rest period such as a lunch break and a work bout performed on the next day to determine if refinements in initial stay times across these periods may be required Further the investigators will evaluate if the application of recommended work-rest allocations thereafter would alleviate increases in core temperature for the duration of the work period eg start of shift versus post-lunch period Given the known age-differences in heat loss that can modulate core temperature regulation during an exercise-heat stress the investigators will assess responses response in young and older adults
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