Cardiorespiratory FitnessNCT06142942
Effect of Sprint Interval Training Frequency on Improvements in Fitness
A study testing Exercise Intervention in people with Cardiorespiratory Fitness, run by Wilfrid Laurier University at 1 site in Canada.
Trial summary
The goal of this study is to learn how the number of weekly exercise sessions affects improvements in fitness in healthy university aged students. The main question it aims to answer is how training frequency affects improvements in fitness. Read more about this study
- Who is it for?
- Ages 18 to 35 yearsHealthy volunteers can take part
- Conditions the study is for
- Cardiorespiratory Fitness
- What is being tested?
- Exercise Intervention
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 100 participants
- Where
- 1 siteCanada
- Study dates
- 1 Nov 2023to Aug 2024
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 35 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Recreationally active: exercising at least 2-3 days per week and not currently involved in, or had been involved in a systematic training program for at least 3 months prior to data collection.
- Safe to become physically active based on the Canadian Society for Exercise Physiology - Get Active Questionnaire.
Who cannot join
- Smoking
- Consuming supplements known to affect metabolism (e.g., creatine, carnitine, nitric oxide, brain chain amino acids).
- Failure to meet inclusion criteria
Trial locations and contacts
1 site in 1 country.
Canada1 site, 1 recruiting
- Recruiting
Wilfrid Laurier University
Waterloo, Ontario, N2L 3C5
Tom J Hazell, PhD, 548-889-3902, thazell@wlu.ca
About this study
Official title: Effect of Sprint Interval Training Frequency on Cardiorespiratory Fitness Adaptations
The goal of this study is to learn how the number of weekly exercise sessions affects improvements in fitness in healthy university aged students. The main question it aims to answer is how training frequency affects improvements in fitness. Participants will complete a pre-testing sessions to assess fitness level and sprint performance. Following this participants are assigned to one of four groups. A group that exercises 2 days a week, a group that trains 3 days a week, a group that trains 4 days a week, or a no-exercise control group. Participants in this group will not complete any training and allow the researchers to compare the exercise groups to a group that didn't train. Each participant will train for 4 weeks. During each training session participants will complete 4-6 30 second all-out sprints with 4 minutes of rest between each. Participants will complete the same tests they did during the pre-testing session following the 4 weeks of training to see how frequency affects improvements.
- Conditions
- Cardiorespiratory Fitness
- Being tested
- Exercise Intervention
- Keywords
- sprint interval training, maximal oxygen consumption, training intervention
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Participants will complete an exercise intervention where they will exercise 2, 3, or 4 days per week for 4 weeks.
| Study group | Role | What they receive |
|---|---|---|
| 2 days per week group | Experimental | Participants in this group complete 2 training sessions each week (Monday and Thursday). Receives: Other: Exercise Intervention |
| 3 days per week group | Experimental | Participants in this group complete 3 training sessions each week (Monday, Wednesday, and Friday). Receives: Other: Exercise Intervention |
| 4 days per week group | Experimental | Participants in this group complete 4 training sessions each week (Monday, Tuesday, Thursday, and Friday). Receives: Other: Exercise Intervention |
| No-exercise Control group | No intervention | This group does not complete any training intervention. They are asked to maintain their regular physical activity habits. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Cardiorespiratory fitness
Cardiorespiratory fitness will be assessed through the measurement of maximal oxygen consumption. This will be determined using an incremental exercise test to volitional fatigue on a treadmill. A metabolic cart will be used to assess oxygen consumption using indirect calorimetry
Measured: This will be assessed before and after 4 weeks of training (or control).
Secondary outcomes (1)
Anaerobic performance
Anaerobic performance will be assessed during one 30 second "all-out" sprint completed on a self-propelled treadmill. Participants will be instructed to run as fast and as hard as they can for the entire 30 seconds. Speed will be recorded during this sprint and used to determine, peak, average, and minimum speed, as well as fatigue index.
Measured: This will be assessed before and after 4 weeks of training (or control).
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Nov 2023
- Study start1 Nov 2023
- Primary completionAug 2024 (estimated)
- Study completionAug 2024 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Cardiorespiratory FitnessStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Model description
- Following pre-testing participants are assigned to one of the four groups based on their baseline cardiorespiratory fitness to ensure no differences between groups at baseline. Participants will train 2, 3, or 4 days a week, or be assigned to the control group (no training) and re-test following the 4 week intervention.
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Wilfrid Laurier University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Tom Hazell, Wilfrid Laurier University
- Investigators
- Tom J Hazell, PhD, Principal investigator, Wilfrid Laurier University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06142942
- Sponsor's protocol ID
- EMRL-23-01
- Status last verified
- Nov 2023
- First submitted
- 15 Nov 2023
- Last updated
- 27 Nov 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided: Data will be made available to other researchers upon reasonable request.
Study at a glance
From the registry record, last updated by the sponsor on 27 Nov 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Sprint Interval Training Frequency on Cardiorespiratory Fitness Adaptations
- ClinicalTrials.gov ID
- NCT06142942
- Acronym / sponsor ID
- EMRL-23-01
- Conditions
- Cardiorespiratory Fitness
- Keywords
- sprint interval training, maximal oxygen consumption, training intervention
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Wilfrid Laurier UniversityUniversity, hospital or other
- Study start
- 1 Nov 2023 (actual)
- Primary completion
- Aug 2024 (estimated)
- Study completion
- Aug 2024 (estimated)
- First posted
- 22 Nov 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this study is to learn how the number of weekly exercise sessions affects improvements in fitness in healthy university aged students. The main question it aims to answer is how training frequency affects improvements in fitness. Participants will complete a pre-testing sessions to assess fitness level and sprint performance. Following this participants are assigned to one of four groups. A group that exercises 2 days a week, a group that trains 3 days a week, a group that trains 4 days a week, or a no-exercise control group. Participants in this group will not complete any training and allow the researchers to compare the exercise groups to a group that didn't train. Each participant will train for 4 weeks. During each training session participants will complete 4-6 30 second all-out sprints with 4 minutes of rest between each. Participants will complete the same tests they did during the pre-testing session following the 4 weeks of training to see how frequency affects improvements.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 4
- Model description
- Following pre-testing participants are assigned to one of the four groups based on their baseline cardiorespiratory fitness to ensure no differences between groups at baseline. Participants will train 2, 3, or 4 days a week, or be assigned to the control group (no training) and re-test following the 4 week intervention.
| Arm | Type | Receives |
|---|---|---|
| 2 days per week group | Experimental | Other: Exercise InterventionParticipants in this group complete 2 training sessions each week (Monday and Thursday). |
| 3 days per week group | Experimental | Other: Exercise InterventionParticipants in this group complete 3 training sessions each week (Monday, Wednesday, and Friday). |
| 4 days per week group | Experimental | Other: Exercise InterventionParticipants in this group complete 4 training sessions each week (Monday, Tuesday, Thursday, and Friday). |
| No-exercise Control group | No intervention | –This group does not complete any training intervention. They are asked to maintain their regular physical activity habits. |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (2 listed)
- Recreationally active: exercising at least 2-3 days per week and not currently involved in, or had been involved in a systematic training program for at least 3 months prior to data collection.
- Safe to become physically active based on the Canadian Society for Exercise Physiology - Get Active Questionnaire.
Key exclusion criteria (3 listed)
- Smoking
- Consuming supplements known to affect metabolism (e.g., creatine, carnitine, nitric oxide, brain chain amino acids).
- Failure to meet inclusion criteria
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Exercise InterventionParticipants will complete an exercise intervention where they will exercise 2, 3, or 4 days per week for 4 weeks. | Other | 2 days per week group, 3 days per week group, 4 days per week group |
Primary outcome
Cardiorespiratory fitness
Time frame: This will be assessed before and after 4 weeks of training (or control).
Cardiorespiratory fitness will be assessed through the measurement of maximal oxygen consumption. This will be determined using an incremental exercise test to volitional fatigue on a treadmill. A metabolic cart will be used to assess oxygen consumption using indirect calorimetry
1 secondary outcome
Anaerobic performance
Time frame: This will be assessed before and after 4 weeks of training (or control).
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Nov 2023.
- Individual participant dataSharing planned: Undecided. Data will be made available to other researchers upon reasonable request.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Tom J Hazell, PhD principal investigator
Wilfrid Laurier University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Exercise Intervention in people with Cardiorespiratory Fitness, run by Wilfrid Laurier University at 1 site in Canada.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 27 Nov 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Tom J Hazell, PhD (5488893902, thazell@wlu.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Cardiorespiratory fitness (time frame: This will be assessed before and after 4 weeks of training (or control).). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Nov 2023.