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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.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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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
What is being tested?
Exercise snacks group and Sprint interval training group
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.

Peizhen Zhang contact

01062989581

zhpzh@bsu.edu.cn

China1 site
  • School of Sports Medicine and Rehabilitation, Beijing Sport University

    Beijing

Other trials in China

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):

  1. A control group that will not receive any treatment.
  2. 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.

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 groups in NCT06849453
Study groupRoleWhat they receive
Exercise snacks groupActive comparatorNot described
Receives: Behavioral: Exercise snacks group
Sprint interval training groupActive comparatorNot described
Receives: Behavioral: Sprint interval training group
Control groupNo interventionNot described

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cardiorespiratory fitness

    The change of maximal oxygen uptake (VO2max) before and after intervention.

    Measured: 8 weeks

Secondary outcomes (9)
  1. 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

  2. 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

  3. Endothelial function

    The change of brachial Flow-Mediated Dilation (FMD) before and after intervention. Endothelial function will be assessed by FMD.

    Measured: 8 weeks

  4. Arterial stiffness

    The changes of brachial-ankle pulse wave velocity and ankle brachial index before and after intervention.

    Measured: 8 weeks

  5. Resting blood pressure

    The change of blood pressure (including systolic and diastolic blood pressure) before and after intervention.

    Measured: 8 weeks

  6. Resting heart rate

    The change of resting heart rate before and after intervention.

    Measured: 8 weeks

  7. Waist Circumference

    The change of waist circumference before and after intervention.

    Measured: 8 weeks

  8. Hip Circumference

    The change of hip circumference before and after intervention.

    Measured: 8 weeks

  9. 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.

  1. First posted27 Feb 2025
  2. Study start24 Feb 2025 (estimated)
  3. Primary completion31 Aug 2025 (estimated)
  4. Study completion31 Oct 2025 (estimated)

Resources

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)
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

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.

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