Hot Water Immersion for Exercise Training
What You Need to Know Before You Apply
What is the purpose of this trial?
This trial explores whether soaking in hot water after exercise (post-exercise hot water immersion) can improve performance at higher altitudes. Participants will either exercise alone or exercise followed by a 30-minute hot water soak. Individuals who regularly engage in at least 90 minutes of moderate activities, such as brisk walking each week, may be suitable candidates. The study excludes those with heart issues, recent high-altitude residency, or a history of fainting. As an unphased trial, it offers a unique opportunity to contribute to understanding how simple lifestyle changes might enhance athletic performance.
Do I need to stop taking my current medications for this trial?
The trial information does not specify whether you need to stop taking your current medications.
What prior data suggests that post-exercise hot water immersion is safe?
Research has shown that soaking in hot water after exercise is generally safe. Studies have found that sitting in hot water at about 40°C (104°F) for 30 minutes is usually comfortable. Many people feel relaxed, though some might feel a bit too warm or slightly dizzy. These feelings are typically temporary and resolve quickly.
While there is limited information about serious side effects, it is important to stay hydrated and exit the hot water if feeling unwell. This trial is not linked to a specific phase, indicating that the treatment is considered safe enough for wide testing without major risks. Participants should always consult the study team if they have concerns or experience any issues during the trial.
Why are researchers excited about this trial?
Researchers are excited about post-exercise hot water immersion as a potential enhancement to exercise training because it offers a unique approach to recovery and performance improvement. Unlike traditional methods that rely on rest or cold therapy, this technique involves immersing the body in 40°C water for 30 minutes after exercise, which may promote faster recovery and better endurance by increasing blood flow and reducing muscle soreness. Additionally, this method is non-invasive and could be easily integrated into existing fitness routines, providing a convenient and accessible option for athletes and fitness enthusiasts.
What evidence suggests that post-exercise hot water immersion is effective for improving exercise performance at simulated altitude?
Research has shown that soaking in hot water after exercise can aid recovery and enhance performance. In this trial, participants in the post-exercise hot water immersion group will cycle for 60 minutes at 50% of maximal oxygen uptake (VO2 max), followed by 30 minutes of hot water immersion. Studies have found that hot water baths improve blood flow and muscle strength after workouts. This method can also help the body acclimate to exercising in hot weather. In one study, participants who used hot water immersion felt less tired during workouts. Overall, this approach appears promising for boosting exercise performance, especially in challenging conditions.12345
Who Is on the Research Team?
Geoffrey L Hartley, PhD
Principal Investigator
Nipissing University
Are You a Good Fit for This Trial?
This trial is for physically active individuals who exercise at least 90 minutes per week. It's not suitable for those living above 1500 meters, or with a history of heart disease or fainting.Inclusion Criteria
Exclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Treatment
Participants cycle for 60 minutes at 50% of VO2 max followed by 30 minutes of hot water immersion for 5 consecutive days
Follow-up
Participants are monitored for safety and effectiveness after treatment
What Are the Treatments Tested in This Trial?
Interventions
- Post-Exercise Hot Water Immersion
Trial Overview
The study tests if soaking in hot water after exercising can improve performance when it feels like you're high up in the mountains where the air is thin (simulated altitude).
How Is the Trial Designed?
2
Treatment groups
Experimental Treatment
Active Control
Participants will cycle for 60 minutes at 50% of maximal oxygen uptake (VO2 max) followed by 30 minutes post-exercise hot water immersion (40oC) for 5 consecutive days.
Participants will cycle for 60 minutes at 50% of maximal oxygen uptake (VO2 max); however, there will be not water immersion following exercise.
Find a Clinic Near You
Who Is Running the Clinical Trial?
Nipissing University
Lead Sponsor
Citations
Post-exercise Hot Water Immersion Elicits Heat Acclimation ...
Conclusion. Hot water immersion after exercise in temperate conditions on 6 consecutive days reduced thermal strain during exercise-heat-stress in endurance ...
A comparison of heat acclimation by post-exercise hot ...
Compared with conventional short-term exercise heat acclimation, short-term post-exercise hot water immersion elicited larger thermal adaptations.
View of Post-Exercise Hot-Water Immersion Promotes Heat ...
A series of hot-water immersion-based heat-training sessions resulted in a statistically significant decrease in RPE during submaximal exercise performance ...
Post‐exercise hot water immersion enhances haemodynamic ...
For example, thrice weekly hot water immersion for 8–10 weeks has been shown to improve endothelial function, blood pressure, fasting glucose, ...
5.
physiology.org
physiology.org/detail/news/2024/11/21/hot-water-immersion-better-than-cold-to-maintain-exercise-performanceHot Water Immersion Better than Cold to Maintain Exercise ...
“The novel findings from our study are that post-exercise hot water immersion promoted recovery of muscle power output compared to post-exercise ...
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