Cardiovascular FunctionNCT06849453
Effects of Exercise Snacks and Sprint Interval Training in Overweight Adults
A study testing Exercise snacks group and Sprint interval training group in people with Cardiovascular Function and Cardiorespiratory Fitness, run by Beijing Sport University at 1 site in China.
Trial summary
Exploring the efficacy and acceptability of exercise snacks (ES) and sprint interval training (SIT) could provide time-efficient, low-barrier alternatives for individuals, especially those who, due to 'lack of time, environment, and equipment,' struggle to meet traditional physical activity recommendations. Read more about this study
- Who is it for?
- Ages 18 to 35 yearsHealthy volunteers can take part
- Conditions the study is for
- Cardiovascular Function, Cardiorespiratory Fitness
- What is being tested?
- Exercise snacks group and Sprint interval training group
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 45 participants
- Where
- 1 siteChina
- Study dates
- 24 Feb 2025to 31 Oct 2025
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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
- Men and women aged between 18 and 35 years;
- Overweight but not obese (BMI ≥24 and ≤ 28 kg/m2);
- Physically inactive (3 or less bouts of purposeful exercise per week);
- Ability to understand the research details and voluntarily sign the informed consent form;
- Non-smoker (for >5 years);
- Body weight has been stable over the past six months, with no recent weight gain or loss behaviors;
- Healthy (see exclusion criteria).
Who cannot join
- Any chronic illness, cardiac, pulmonary, liver, or kidney abnormalities, uncontrolled hypertension, peripheral arterial disease, insulin- or non-insulin dependent diabetes or other metabolic disorders - all ascertained through preliminary screening;
- Individuals with a history of bone, joint or neuromuscular problems or a current musculoskeletal injury ascertained through preliminary screening;
- Abnormal electrocardiogram (ECG) results;
- Currently taking medication that may affect physiological testing;
- Contraindications to exercise.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
China1 site
School of Sports Medicine and Rehabilitation, Beijing Sport University
Beijing
About this study
Official title: Effects of Exercise Snacks and Sprint Interval Training on Cardiovascular Function in Overweight Adults: A Randomized Controlled Trial
Exploring the efficacy and acceptability of exercise snacks (ES) and sprint interval training (SIT) could provide time-efficient, low-barrier alternatives for individuals, especially those who, due to 'lack of time, environment, and equipment,' struggle to meet traditional physical activity recommendations. This research aims to investigate the effects of ES and SIT, of equal exercise volume, on overweight adults.
Read the detailed description
Engaging in regular physical activity has been shown to induce a range of beneficial physiological and psychological adaptations, including improved cardiorespiratory fitness, body composition, cardiovascular function, and reductions in negative emotions. However, global participation rates in physical activity remain suboptimal, with little significant improvement. Interviews and surveys have identified several potential barriers to low physical activity levels, with limitations such as 'lack of time, equipment, and facilities' often cited as the main perceived obstacles. Therefore, exploring the minimum effective dose of exercise in real-world settings is essential.
This study will employ a randomized clinical trial to examine the effectiveness and acceptability of two low-volume, high-intensity stair climbing exercises in overweight adults. It adopts a single-blind, parallel randomized design, with the intervention commencing immediately after the initial evaluation and randomization, following a pre-treatment/post-test framework. Eligible participants were recruited via convenience sampling and randomly assigned to one of three groups (one control group and two experimental groups):
- A control group that will not receive any treatment.
- Two experimental groups (ES and SIT), which will undergo a stair climbing-based physical training program following the initial evaluation. The two exercise interventions are designed with equal exercise volume, with the only difference being the rest (recovery) time between stair sprints. All exercise sessions are conducted under the supervision of professionals.
The aim of this study is twofold: First, to explore the impact of ES and SIT on cardiorespiratory fitness, body composition, and cardiovascular function in overweight adults. Second, to examine the acceptability of two low-volume, high-intensity stair climbing exercises by assessing participants' (1) acceptability, (2) reactions during the interventions, (3) enjoyment and affective valence during exercise, and (4) intentions at the end.
- Conditions
- Cardiovascular Function, Cardiorespiratory Fitness
- Being tested
- Exercise snacks group, Sprint interval training group
- Keywords
- Exercise Snacks, Sprint Interval Training, Overweight Adults, Cardiovascular Function
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Exercise snacks groupBehavioural
Exercise snacks on the stairs for 8 weeks.
Sprint interval training groupBehavioural
Sprint interval training on the stairs for 8 weeks.
| Study group | Role | What they receive |
|---|---|---|
| Exercise snacks group | Active comparator | Not described Receives: Behavioral: Exercise snacks group |
| Sprint interval training group | Active comparator | Not described Receives: Behavioral: Sprint interval training group |
| Control group | No intervention | Not described |
What is being measured
The primary outcome is the main question the study is designed to answer.
Cardiorespiratory fitness
The change of maximal oxygen uptake (VO2max) before and after intervention.
Measured: 8 weeks
Secondary outcomes (9)
Body composition
The change of body composition indexes (including fat mas, lean body mass, percentage of body fat) before and after intervention.
Measured: 8 weeks
Lipid profile
The changes in concentrations of high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, total cholesterol, and triglyceride before and after intervention.
Measured: 8 weeks
Endothelial function
The change of brachial Flow-Mediated Dilation (FMD) before and after intervention. Endothelial function will be assessed by FMD.
Measured: 8 weeks
Arterial stiffness
The changes of brachial-ankle pulse wave velocity and ankle brachial index before and after intervention.
Measured: 8 weeks
Resting blood pressure
The change of blood pressure (including systolic and diastolic blood pressure) before and after intervention.
Measured: 8 weeks
Resting heart rate
The change of resting heart rate before and after intervention.
Measured: 8 weeks
Waist Circumference
The change of waist circumference before and after intervention.
Measured: 8 weeks
Hip Circumference
The change of hip circumference before and after intervention.
Measured: 8 weeks
Body Mass Index (BMI )
The change of BMI before and after intervention. BMI is calculated from the formula, Weight (kg) / Height2 (m2).
Measured: 8 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Feb 2025
- Study start24 Feb 2025 (estimated)
- Primary completion31 Aug 2025 (estimated)
- Study completion31 Oct 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Cardiovascular FunctionStudies 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
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 45 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Beijing Sport University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06849453
- Sponsor's protocol ID
- EESSITOA
- Status last verified
- Feb 2025
- First submitted
- 4 Feb 2025
- Last updated
- 27 Feb 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 27 Feb 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Exercise Snacks and Sprint Interval Training on Cardiovascular Function in Overweight Adults: A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT06849453
- Acronym / sponsor ID
- EESSITOA
- Conditions
- Cardiovascular Function, Cardiorespiratory Fitness
- Keywords
- Exercise Snacks, Sprint Interval Training, Overweight Adults, Cardiovascular Function
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 45 participants (estimated)
- Lead sponsor
- Beijing Sport UniversityUniversity, hospital or other
- Study start
- 24 Feb 2025 (estimated)
- Primary completion
- 31 Aug 2025 (estimated)
- Study completion
- 31 Oct 2025 (estimated)
- First posted
- 27 Feb 2025 (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.
Exploring the efficacy and acceptability of exercise snacks (ES) and sprint interval training (SIT) could provide time-efficient, low-barrier alternatives for individuals, especially those who, due to 'lack of time, environment, and equipment,' struggle to meet traditional physical activity recommendations. This research aims to investigate the effects of ES and SIT, of equal exercise volume, on overweight adults.
Detailed description
Engaging in regular physical activity has been shown to induce a range of beneficial physiological and psychological adaptations, including improved cardiorespiratory fitness, body composition, cardiovascular function, and reductions in negative emotions. However, global participation rates in physical activity remain suboptimal, with little significant improvement. Interviews and surveys have identified several potential barriers to low physical activity levels, with limitations such as 'lack of time, equipment, and facilities' often cited as the main perceived obstacles. Therefore, exploring the minimum effective dose of exercise in real-world settings is essential.
This study will employ a randomized clinical trial to examine the effectiveness and acceptability of two low-volume, high-intensity stair climbing exercises in overweight adults. It adopts a single-blind, parallel randomized design, with the intervention commencing immediately after the initial evaluation and randomization, following a pre-treatment/post-test framework. Eligible participants were recruited via convenience sampling and randomly assigned to one of three groups (one control group and two experimental groups):
- A control group that will not receive any treatment.
- Two experimental groups (ES and SIT), which will undergo a stair climbing-based physical training program following the initial evaluation. The two exercise interventions are designed with equal exercise volume, with the only difference being the rest (recovery) time between stair sprints. All exercise sessions are conducted under the supervision of professionals.
The aim of this study is twofold: First, to explore the impact of ES and SIT on cardiorespiratory fitness, body composition, and cardiovascular function in overweight adults. Second, to examine the acceptability of two low-volume, high-intensity stair climbing exercises by assessing participants' (1) acceptability, (2) reactions during the interventions, (3) enjoyment and affective valence during exercise, and (4) intentions at the end.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Exercise snacks group | Active comparator | Behavioral: Exercise snacks group |
| Sprint interval training group | Active comparator | Behavioral: Sprint interval training group |
| Control group | No intervention | – |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (7 listed)
- Men and women aged between 18 and 35 years;
- Overweight but not obese (BMI ≥24 and ≤ 28 kg/m2);
- Physically inactive (3 or less bouts of purposeful exercise per week);
- Ability to understand the research details and voluntarily sign the informed consent form;
- Non-smoker (for >5 years);
Key exclusion criteria (5 listed)
- Any chronic illness, cardiac, pulmonary, liver, or kidney abnormalities, uncontrolled hypertension, peripheral arterial disease, insulin- or non-insulin dependent diabetes or other metabolic disorders - all ascertained through preliminary screening;
- Individuals with a history of bone, joint or neuromuscular problems or a current musculoskeletal injury ascertained through preliminary screening;
- Abnormal electrocardiogram (ECG) results;
- Currently taking medication that may affect physiological testing;
- Contraindications to exercise.
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 snacks groupExercise snacks on the stairs for 8 weeks. | Behavioural | Exercise snacks group |
| Sprint interval training groupSprint interval training on the stairs for 8 weeks. | Behavioural | Sprint interval training group |
Primary outcome
Cardiorespiratory fitness
Time frame: 8 weeks
The change of maximal oxygen uptake (VO2max) before and after intervention.
9 secondary outcomes
Body composition
Time frame: 8 weeks
Lipid profile
Time frame: 8 weeks
Endothelial function
Time frame: 8 weeks
Arterial stiffness
Time frame: 8 weeks
Resting blood pressure
Time frame: 8 weeks
Resting heart rate
Time frame: 8 weeks
Waist Circumference
Time frame: 8 weeks
Hip Circumference
Time frame: 8 weeks
Body Mass Index (BMI )
Time frame: 8 weeks
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Feb 2025.
- Individual participant dataSharing planned: No
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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.
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 snacks group and Sprint interval training group in people with Cardiovascular Function and Cardiorespiratory Fitness, run by Beijing Sport University at 1 site in China.
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 7 inclusion and 5 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: opening soon, as of the sponsor's last update on 27 Feb 2025. 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 China. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Peizhen Zhang (01062989581, zhpzh@bsu.edu.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Cardiorespiratory fitness (time frame: 8 weeks). 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 Feb 2025.