Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT05988606 · ClinicalTrials.gov registry record · NA
Work Rate Adjustments During a High-intensity Interval Training on a Stationary Bike in a Hot and Temperate Environment
A NA study, sponsored by University of Alabama, Tuscaloosa.
- Completed
- Registry status
- NA
- Development phase
- 7
- Enrollment target
NCT05988606: Completed NA study, sponsored by University of Alabama, Tuscaloosa.
NCT05988606 is a NA study that has completed, run by University of Alabama, Tuscaloosa. The registered enrollment target is 7 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (100% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT05988606, a NA study, has completed, sponsored by University of Alabama, Tuscaloosa.
- COMPLETED
- Registry status
- NA
- Development phase
- 7 participants
- Enrollment target
Study 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 (i.e., 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 (V̇O2max) 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 V̇O2max 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 V̇O2max. * 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 ho
Primary Outcome
In a hot and temperate environment by how much does work rate need to be adjusted to maintain target heart rate?
Interventions
- OTHER Hot environment
- BEHAVIORAL 15 minutes of high-intensity interval training
- BEHAVIORAL 43 minutes of high-intensity interval training
- OTHER Temperate environment
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 7 participants |
| Start Date | 2021-05-12 |
| Est. Completion | 2021-11-14 |
| Phase | NA |
What the finished NCT05988606 record still lists
NCT05988606 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 7 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (100% lower).
The record links to 0 conditions, and to 4 interventions - of which Hot environment is the first listed.
NCT05988606 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT05988606 about?
NCT05988606 is a clinical study titled "Work Rate Adjustments During a High-intensity Interval Training on a Stationary Bike in a Hot and Temperate Environment". 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 a...
What is the current status of trial NCT05988606?
This trial is currently completed. It is a NA study. The enrollment target is 7 participants. The study started on 2021-05-12. Estimated completion is 2021-11-14.
What interventions are being tested in trial NCT05988606?
The interventions under investigation include: Hot environment (OTHER), 15 minutes of high-intensity interval training (BEHAVIORAL), 43 minutes of high-intensity interval training (BEHAVIORAL), Temperate environment (OTHER).
Who is sponsoring clinical trial NCT05988606?
This trial is sponsored by University of Alabama, Tuscaloosa, which has 13 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT05988606's enrollment target sits among peer trials
7 1982nd of 2000 higher than 18 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar registry start date
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia
- NCT07125183 · started 2026-12 · Phase 2
Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma
- NCT07292298 · started 2026-11 · Phase 2
Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates
- NCT04263285 · started 2026-10 · NA
Treatment of Depression Post-SCI