Ignite Creation Date:
2024-05-06 @ 7:21 PM
Last Modification Date:
2024-10-26 @ 3:05 PM
Study NCT ID:
NCT05988606
Status:
COMPLETED
Last Update Posted:
2023-08-14
First Post:
2023-08-04
Brief Title:
Work Rate Adjustments During a High-intensity Interval Training on a Stationary Bike in a Hot and Temperate Environment
Sponsor:
University of Alabama Tuscaloosa
Organization:
University of Alabama Tuscaloosa
Study Overview
Official Title:
Acute Work Rate Adjustments During High-intensity Interval Training in a Hot and Temperate Environment
Status:
COMPLETED
Status Verified Date:
2023-08
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The goal of this repeated measures study is to evaluate acute work rate adjustments during high-intensity interval training HIIT in a hot and temperate environment in healthy and active adults when using target heart rate to prescribe the exercise intensity
The main questions it aims to answer are
Will HIIT based on target heart rate in a hot environment result in increased cardiovascular ie elevated recovery HR and thermal strain compared to HIIT in a temperate environment
Will work rate be lowered to a greater extent during HIIT in a hot environment compared to a temperate environment in order to maintain target heart rate
Will maximal aerobic capacity VO2max decrease to a greater extent after HIIT in the heat compared to a temperate environment
Procedures
Participants will complete 5 trials on a cycle ergometer Trial 1 Control Visit Participants n 7 will have their maximal heart rate and VO2max measured in a temperate environment 22 C 40 RH
Experimental Trials 2-5 The order of the trials will be counterbalanced and randomly assigned to participants
15TEMP Participants will cycle at 70 of their maximum heart rate for 8 minutes as a warm-up followed by one round of HIIT The HIIT protocol consists of 4 minutes at 90 of maximum heart rate followed by 3 minutes at 70 of maximum heart rate totaling 15 minutes in a temperate environment 22 C 40 RH After the HIIT session a graded exercise test will measure VO2max
15HEAT Similar to 15TEMP but participants will perform the HIIT protocol in a hot environment 35 C 40 RH
43TEMP Participants will cycle at 70 of their maximum heart rate for 8 minutes as a warm-up followed by the HIIT protocol repeated four times 4 minutes at 90 of maximum heart rate and 3 minutes at 70 of maximum heart rate totaling 43 minutes in a temperate environment 22 C 40 RH
43HEAT Similar to 43TEMP but participants will perform the HIIT protocol in a hot environment 35 C 40 RH
The main questions it aims to answer are
Will HIIT based on target heart rate in a hot environment result in increased cardiovascular ie elevated recovery HR and thermal strain compared to HIIT in a temperate environment
Will work rate be lowered to a greater extent during HIIT in a hot environment compared to a temperate environment in order to maintain target heart rate
Will maximal aerobic capacity VO2max decrease to a greater extent after HIIT in the heat compared to a temperate environment
Procedures
Participants will complete 5 trials on a cycle ergometer Trial 1 Control Visit Participants n 7 will have their maximal heart rate and VO2max measured in a temperate environment 22 C 40 RH
Experimental Trials 2-5 The order of the trials will be counterbalanced and randomly assigned to participants
15TEMP Participants will cycle at 70 of their maximum heart rate for 8 minutes as a warm-up followed by one round of HIIT The HIIT protocol consists of 4 minutes at 90 of maximum heart rate followed by 3 minutes at 70 of maximum heart rate totaling 15 minutes in a temperate environment 22 C 40 RH After the HIIT session a graded exercise test will measure VO2max
15HEAT Similar to 15TEMP but participants will perform the HIIT protocol in a hot environment 35 C 40 RH
43TEMP Participants will cycle at 70 of their maximum heart rate for 8 minutes as a warm-up followed by the HIIT protocol repeated four times 4 minutes at 90 of maximum heart rate and 3 minutes at 70 of maximum heart rate totaling 43 minutes in a temperate environment 22 C 40 RH
43HEAT Similar to 43TEMP but participants will perform the HIIT protocol in a hot environment 35 C 40 RH
Detailed Description:
None
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None