The Effects of Post Aerobic Exercise Hot Water Immersion on Physiological and Perceptual Responses in Physically Inactive Middle-aged Adults
NCT ID: NCT05035004
Last Updated: 2022-03-17
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
16 participants
INTERVENTIONAL
2021-11-15
2022-03-16
Brief Summary
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Detailed Description
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An in increase in body temperature from a single session of passive heating has been shown to mimic many of the beneficial physiological responses of exercise, such as, an increase in heart rate, skin blood flow and an increase in circulating angiogenic factors. However, lab based studies often push participants to the limit of thermal tolerance which may reduce long term adherence in the real world. Therefore, this study will investigate whether the use of post exercise hot water immersion can prolong and / or intensify exercise mediated physiological responses that underpin health benefits, whilst also assessing the perceptual responses, in comparison to exercise and hot water immersion alone.
Through the use of a repeated measures design, participants will randomly take part in three conditions; 1) post exercise hot water immersion (30 minutes of moderate intensity cycling followed by 10 minutes of supine rest and 30 minutes of whole body hot water immersion at 40°C); 2) aerobic exercise (30 minutes of moderate intensity cycling followed by 10 minutes of supine rest and 30 minutes of seated rest at room temperature); 3) hot water immersion condition (30 minutes of whole body hot water immersion at 40°C followed by 10 minutes of supine rest and 30 minutes of whole body hot water immersion at 40°C). Each condition will be separated by a minimum of 1-week. Outcome measures will either be assessed at regular intervals or at 0, 30, 70 and 100 minute time points for each condition.
Conditions
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Study Design
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RANDOMIZED
CROSSOVER
PREVENTION
NONE
Study Groups
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Post exercise hot water immersion
Moderate intensity cycling for 30 minutes, followed by a 10-minute transfer period and then 30 minutes of whole-body hot water immersion.
Post exercise hot water immersion
Participants will complete 30 minutes of cycling on a lode bicycle ergometer (50% of VO2max), followed by a 10-minute transfer period and then 30 minutes of whole-body hot water immersion in a hot tub (water temperature 40°C).
Exercise
Moderate intensity cycling for 30 minutes.
Exercise
Participants will complete 30 minutes of cycling on a lode bicycle ergometer (50% of VO2max).
Hot water immersion
Whole-body hot water immersion for 30 minutes, followed by a 10-minute transfer period and then an additional 30 minutes of whole-body hot water immersion.
Hot water immersion
Participants will complete 30 minutes of whole-body hot water immersion in a hot tub (water temperature 40°C), followed by a 10-minute transfer period and then an additional 30 minutes of whole-body hot water immersion in a hot tub (water temperature 40°C).
Interventions
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Post exercise hot water immersion
Participants will complete 30 minutes of cycling on a lode bicycle ergometer (50% of VO2max), followed by a 10-minute transfer period and then 30 minutes of whole-body hot water immersion in a hot tub (water temperature 40°C).
Exercise
Participants will complete 30 minutes of cycling on a lode bicycle ergometer (50% of VO2max).
Hot water immersion
Participants will complete 30 minutes of whole-body hot water immersion in a hot tub (water temperature 40°C), followed by a 10-minute transfer period and then an additional 30 minutes of whole-body hot water immersion in a hot tub (water temperature 40°C).
Eligibility Criteria
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Inclusion Criteria
* Aged between 40 - 60 years
* BMI of 18.5 - 34.9 kg/m2
* Over the last 6 months has participated in less than 150 mins of moderate intensity physical activity or 75 mins of vigorous activity or a combination of both, but takes part in some form of physical activity within their weekly routine.
* Maximal oxygen uptake categorised as 'fair' for a given age group.
Exclusion Criteria
* Any signs or symptoms of cardiovascular issues
* High blood pressure: SBP \>180 mmHg and / or DBP \>100 mmHg
* Orthostatic hypotension: Drop of SBP \> 20mmHg and / or DBP \>10 mmHg upon standing.
* Changed blood pressure medication in the 6-month period prior to the study
* Plan to change any form of relevant medication during study period
* Suffers from diabetes
* Suffers from severe asthma
* Currently have any infections or symptoms of an infection (e.g. COVID-19 etc)
* Suffers from a neurodegenerative disease
* Cannot understand and/or fully cooperate with the study protocol
* Exercise-limiting comorbidity (e.g. angina, chronic lung disease, arthritis etc)
* Severe peripheral neuropathy (cannot sense temperature)
* Current smoker or have stopped in the last 3 months
* Any skin conditions including ulcerations
* Exposed to high temperatures in the last 4-weeks (e.g. holiday, spa, sun beds etc)
* Use of antioxidant supplements in the last 6-weeks
40 Years
60 Years
ALL
Yes
Sponsors
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Coventry University
OTHER
Responsible Party
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Charles Steward
Post Graduate Research Student in the Centre for Sport, Exercise and Life Sciences
Locations
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Coventry University
Coventry, West Midlands, United Kingdom
Countries
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Other Identifiers
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P97102
Identifier Type: -
Identifier Source: org_study_id
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