The Benefits of a High-intensity Interval Training Intervention Delivered in a School Setting Among Adolescents

NCT ID: NCT06374732

Last Updated: 2025-04-24

Study Results

Results pending

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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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

369 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-02-26

Study Completion Date

2024-10-01

Brief Summary

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A 12-week school-based high-intensity interval training intervention, with 8 classes of year 7 students randomly allocated to either intervention or control group. The interval training sessions will last for 6 to 10 minutes and will be delivered 5 times per week. Outcome variables will be physical activity, body composition, cardiorespiratory fitness, muscular strength, bone health, executive function, mental wellbeing, and academic performance, which will be measured pre- and post-intervention and two months after the intervention has been completed.

Detailed Description

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The purpose of this study is to: 1) evaluate the effectiveness of a 12-week school-based HIIT intervention on cardiorespiratory fitness (primary outcome), physical activity, body composition, muscular strength, bone health, executive function, wellbeing, enjoyment, affect, self-efficacy and academic performance among 12-13-year-old adolescents; 2) to examine the changes of these outcomes following a two-month unstructured summer holiday after the study has been completed; 3) to conduct a process evaluation for the study.

The study is a 12-week high-intensity interval training intervention, which is 6 to 10-minute in length and will be delivered 5 times per week among year 7 adolescents, at the start of physical education and physical activity lessons. We will examine the effectiveness of this intervention on outcomes, such as body composition, cardiorespiratory fitness, muscular health, bone health, cognitive function, mental wellbeing, and academic performance. In addition, The investigators will evaluate the fitness changes between school days (structured day) and a two-month summer holiday (unstructured days). This will be achieved by collecting data at three timepoints: pre- and post-intervention and after a 2-month (summer holiday) following the completion of the intervention.

The high-intensity interval training includes resistance-based exercises, such as jumping jacks, high knees, burpees, squat jumps, lunge jumps, and mountain climbers.

Conditions

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Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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High-intensity interval training group

The experimental group, which will perform high-intensity interval training (HIIT), 5 time per week for 12 weeks.

Group Type EXPERIMENTAL

High-intensity interval training

Intervention Type BEHAVIORAL

The experimental group will perform 6-to-10-minute of high-intensity interval training at the beginning of their physical education lessons or physical activity lessons.

Control group

Control group, which will continue their normal physical activity, including their usual physical education classes.

Group Type ACTIVE_COMPARATOR

Control group

Intervention Type BEHAVIORAL

The control group will maintain their normal behaviour, including regular physical education lessons and physical activity lessons.

Interventions

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High-intensity interval training

The experimental group will perform 6-to-10-minute of high-intensity interval training at the beginning of their physical education lessons or physical activity lessons.

Intervention Type BEHAVIORAL

Control group

The control group will maintain their normal behaviour, including regular physical education lessons and physical activity lessons.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

• Year 7 students

Exclusion Criteria

* Unable to perform high-intensity exercises due to existing medical contraindications
* Unable to understand the study procedures and provide consent
Minimum Eligible Age

11 Years

Maximum Eligible Age

13 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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China Scholarship Council

UNKNOWN

Sponsor Role collaborator

Ningbo University

OTHER

Sponsor Role collaborator

University of Exeter

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Craig Williams, PhD

Role: STUDY_CHAIR

University of Exeter

Yaodong Gu, PhD

Role: STUDY_CHAIR

Ningbo University

Locations

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University of Exeter

Exeter, Devon, United Kingdom

Site Status

Countries

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United Kingdom

References

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Liu Y, Barker AR, Adlam AR, Li M, Duncombe SL, Agbaje AO, Gu Y, Zhou H, Williams CA. Effectiveness of a school-based high-intensity interval training intervention in adolescents: study protocol of the PRO-HIIT cluster randomised controlled trial. Front Pediatr. 2024 Oct 29;12:1458610. doi: 10.3389/fped.2024.1458610. eCollection 2024.

Reference Type DERIVED
PMID: 39534248 (View on PubMed)

Other Identifiers

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TY2024002

Identifier Type: -

Identifier Source: org_study_id

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