- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04122209
Does the Timing of When High Intensity Intermittent Exercise is Undertaken Matter? (HIIE)
The Effect of Multiple Exercise Bouts During the Same Day (Continuous and High Intensity Intermittent Exercise), on Gastrointestinal Function, Appetite and Metabolic Response in Healthy Males: a Randomised Cross Over Trial
The participants will visit the laboratory on 3 occasions, once for a preliminary visit and a further two occasions to complete experimental trials in a randomised order. The experimental trials will consist of cycling under two conditions; HIIE-First followed by Continuous (Trial-A) or Continuous-First followed by HIIE (Trial-B). Participants will be asked to standardise their diet for 24-hours and complete an overnight fast prior to visiting the laboratory. Participants will then complete 60-min of cycling split throughout the day into two 30-min bouts, HIIE or continuous cycling before breakfast followed by a 3.5 hour rest period before completing their remaining 30-min HIIE or Continuous cycling before lunch. Each experimental trail will last approximately 8 hours and begin at 08:00am. Throughout the trial measurements of subjective feelings of appetite, gastric emptying rate, substrate utilisation and regular blood samples will be taken. Post-trial nutritional and well-being questionnaires will be collected at 24-h post.
Study hypothesis
- The order in which continuous and HIIE is undertaken will result in differences in gastric emptying rate after ingesting a semi-sold lunch?
- Depending on which mode of exercise is undertaken first will result in different gastrointestinal hormone responses, metabolic responses and appetite responses throughout the trial day?
- Will the order in which different modes of exercise, undertaken within the same day effect nutritional intake and well-being 24-h after both exercise bout have been completed?
- Is substrate oxidation effected by the order in which multiple exercise bout of different modes are undertaken within the same day.
Study Overview
Status
Intervention / Treatment
Detailed Description
There is a growing amount of literature committed to understanding if becoming more active will have beneficial effects on metabolic health; secondly do the traditional physical exercise and dietary approaches to managing obesity result in prolonged weight loss. The purpose of this study is to determine whether high intensity intermittent exercise (HIIE) and continuous exercise carried out in differing sequences within a day will have a beneficial health impact.
Participants will complete two 8h experimental trials in a randomised cross-over design. Each participant will complete 60-min of exercise in both trial arms; HIIE-First or Continuous-First separated by a minimum of 7 days. One trial will consist of a 30-min HIIE cycling session (10 x 1min of peak power output followed by 2min rest). After completion of this bout of exercise, participants will ingest a standardised breakfast. Following a rest period of 3h before completing the remaining 30-min of exercise (50% peak maximal oxygen uptake), before consuming a standardised semi-sold lunch meal. The second trial will be identical other than participates will undertake the continuous exercise first followed by the HIIE. Regular appetite, breath and blood samples will be taken throughout the trials. In The 24 hours following the end of each trial, participants will be asked to record their dietary intake and record their feeling of well-being documented on a questionnaire. There will be no long-term follow up following completion of the study.
Therefore, the aim of this research project is to identify whether the order of HIIE and continuous exercise separated within the day results in changes to gastrointestinal health, appetite, and metabolic responses.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Lewis R Mattin, MRs
- Phone Number: 01612471215
- Email: l.mattin@mmu.ac.uk
Study Contact Backup
- Name: Gethin H Evans, PhD
- Phone Number: 01612471208
- Email: gethin.evans@mmu.ac.uk
Study Locations
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-
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Manchester, United Kingdom, M1 5GD
- Recruiting
- Manchester Metropolitan University
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Contact:
- Lewis R Mattin, MRs
- Phone Number: 01612471215
- Email: l.mattin@mmu.ac.uk
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Contact:
- Gethin H Evans, PhD
- Phone Number: 01612471208
- Email: gethin.evans@mmu.ac.uk
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Principal Investigator:
- Lewis R Mattin, MRs
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Principal Investigator:
- Gethin H Evans, PhD
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Principal Investigator:
- Adora MW Yau, PhD
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Sub-Investigator:
- Victoria J McIver, MRs
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Sub-Investigator:
- Lewis J James, PhD
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Healthy males
- Age between 18-40 years
- Body mass index = <29.9 kg/m2
- Non-smokers
- No history of GI symptoms
- Not consuming prescription medication, or no other relevant medical conditions assessed by a medical screening questionnaire.
- Not vegan or lactose intolerant
- Subsequently be physically active, in order to complete the trials.
Exclusion Criteria:
- Not healthy
- Female
- Under 18 years
- Over 40 years
- Body mass index = >29.9 kg/m2;
- Smokers
- History of GI symptoms or disease,
- Consuming prescription medication
- Lactose Intolerant
- Vegan
- Subsequently not physically active, in order to complete the trials
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: HIIE-First
60-min of exercise split into; firstly 30-min HIIE (10 x 1min of PPO, followed by 2-min rest).
Secondly 30-min of continuous exercise (50% peak maximal oxygen uptake).
|
Multiple exercise bout during the same day; HIIE first followed by continuous exercise
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Experimental: Continuous-First
60-min of exercise split into; firstly 30-min of continuous exercise (50% peak maximal oxygen uptake).
Secondly 30-min HIIE (10 x 1min of PPO, followed by 2-min rest)
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Multiple exercise bout during the same day; Continuous exercise first followed by HIIE
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in gastric emptying rate over a 2-hour period
Time Frame: 9 breath samples will be collected at pre-Lunch (315 minutes), 345, 360, 375, 390, 405, 420, 435 and 450 minutes. Which is every 15 minutes for a two-hour period post-lunch.
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Gastric emptying rate of a semi-solid meal will be measured using the 13C breath test.
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9 breath samples will be collected at pre-Lunch (315 minutes), 345, 360, 375, 390, 405, 420, 435 and 450 minutes. Which is every 15 minutes for a two-hour period post-lunch.
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Changes in circulating levels of key gut hormones during the trial day
Time Frame: 10 samples will be collected at 0 (baseline), 30, 75, 135, 195, 255, 285, 315, 390, 450 minutes (End of trial)
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Hormones will be collected from serum blood samples
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10 samples will be collected at 0 (baseline), 30, 75, 135, 195, 255, 285, 315, 390, 450 minutes (End of trial)
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Changes in circulating levels of key metabolic markers during the trial day
Time Frame: 10 samples will be collected at 0 (baseline), 30, 75, 135, 195, 255, 285, 315, 390, 450 minutes (End of trial)
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Serum blood samples will be collected to measure Metabolic markers ( Glucose, triglycerides, Cholesterol and Non-esterified fatty acids)
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10 samples will be collected at 0 (baseline), 30, 75, 135, 195, 255, 285, 315, 390, 450 minutes (End of trial)
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Changes in substrate oxidation during the trial day
Time Frame: 8 measurements of substrate oxidation will be taken at 0 (baseline), 30, 135, 195, 255, 285, 390, and 450 minutes (End of trial)
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Substrate oxidation will be measured using a breath-by breath gas analyser for a 15-minutes period during each measurement
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8 measurements of substrate oxidation will be taken at 0 (baseline), 30, 135, 195, 255, 285, 390, and 450 minutes (End of trial)
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Changes in appetite using a visual analogue scales (VAS) questionnaire
Time Frame: 10 VAS questionnaires will be completed at 0 (baseline), 30, 75, 135, 195, 255, 285, 315, 390, 450 minutes (End of trial)
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Visual analogue scales will be used to measure subjective sensations of appetite.
The VAS was composed of 6 questions asking: "how hungry do you feel?" "How full do you feel?" "How much do you think you can eat?" "How satisfied do you feel?" " How nauseous do you feel?" and " How bloated do you feel?".
Horizontal lines 100 mm in length were anchored with "I am not hungry at all to I have never been more hungry," "Not at all full to totally full," "nothing at all to a lot," "I am completely empty to I can't eat another bite" " Not at all nauseous to Very nauseous" and " Not at all bloated to Very Bloated" at 0 mm and 100 mm, respectively.
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10 VAS questionnaires will be completed at 0 (baseline), 30, 75, 135, 195, 255, 285, 315, 390, 450 minutes (End of trial)
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Post trial energy intake
Time Frame: 24-hours post-trial total dietary intake
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24-hour post trial energy intake using weighed food intake dietary record
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24-hours post-trial total dietary intake
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in well-being
Time Frame: 6 questionnaires will be completed; pre (0-minutes) and post first exercise bout (30-minutes), and pre (255-minutes) and post second exercise bout (285-minutes). End of the trial day (450-minutes), and 24-hours post-trial
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Well-being will be assessed with an in-house questionnaire.
Before each trial session participants will answered the following questions: 1) how sore do your muscles feel ?
2) How fatigued do you feel today?
3) How is your mood? 4) How stressed do you feel today?
5) How sleepy do you feel?.
Each question will be scored between 1 (low) and 7 (high).
A sum of scores for the 5 questions will be used for data analysis.
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6 questionnaires will be completed; pre (0-minutes) and post first exercise bout (30-minutes), and pre (255-minutes) and post second exercise bout (285-minutes). End of the trial day (450-minutes), and 24-hours post-trial
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Changes in perceived exertion
Time Frame: Perceived exertion will be asked 12 times; 6 during the first 30-minutes exercise period ( 5, 10, 15. 20, 25 and 30-minutes) and a further 6 times during the second exercise period (5, 10, 15, 20, 25 and 30-minutes
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Ratings of perceived exertion using the Borg scale will be recorded during exercise.
Perceived exertion will be measured every 5-minutes during both 30-minutes exercise periods
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Perceived exertion will be asked 12 times; 6 during the first 30-minutes exercise period ( 5, 10, 15. 20, 25 and 30-minutes) and a further 6 times during the second exercise period (5, 10, 15, 20, 25 and 30-minutes
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Changes in heart rate during exercise
Time Frame: Continues exercise ( 5, 10, 15, 20, 25 and 30-minutes ) and Intermittent ( 1, 3, 6, 9, 12, 15, 18, 21, 24 and 27-minutes)
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Heart rate will be measured every 5-minutes during the continues exercise and every 3-minutes during the intermittent exercise
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Continues exercise ( 5, 10, 15, 20, 25 and 30-minutes ) and Intermittent ( 1, 3, 6, 9, 12, 15, 18, 21, 24 and 27-minutes)
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Collaborators and Investigators
Investigators
- Study Director: Gethin H Evans, PhD, Manchester Metropolitan University
Publications and helpful links
General Publications
- Mattin LR, Yau AMW, McIver V, James LJ, Evans GH. The Effect of Exercise Intensity on Gastric Emptying Rate, Appetite and Gut Derived Hormone Responses after Consuming a Standardised Semi-Solid Meal in Healthy Males. Nutrients. 2018 Jun 19;10(6):787. doi: 10.3390/nu10060787.
- McIver VJ, Mattin LR, Evans GH, Yau AMW. Diurnal influences of fasted and non-fasted brisk walking on gastric emptying rate, metabolic responses, and appetite in healthy males. Appetite. 2019 Dec 1;143:104411. doi: 10.1016/j.appet.2019.104411. Epub 2019 Aug 21.
- McIver VJ, Mattin L, Evans GH, Yau AMW. The effect of brisk walking in the fasted versus fed state on metabolic responses, gastrointestinal function, and appetite in healthy men. Int J Obes (Lond). 2019 Sep;43(9):1691-1700. doi: 10.1038/s41366-018-0215-x. Epub 2018 Sep 24.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- LRM-11619
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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