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OpenTrials
Completed

NCT Number: NCT04022642

Effects of HIIT Integrated in PE Classes, on Physical Condition, Physical Activity and Motivation for Exercise

Levels of activity and physical condition among adolescents are low, increasing the risk of chronic diseases. The most recent literature suggests that physical activity and physical condition are correlated with improved biopsychosocial variables of the young. The School and, concretely, the Physical Education classes are privileged spaces, promoters of positive changes for the rest of the life. HIIT is an efficient alternative to the invested time compared to aerobic training, being a powerful stimulus in improving cardiorespiratory performance, muscles oxidative capacity and sensitivity to insulin. This study intends to verify the effectiveness and feasibility in the implementation of HIIT in High-School Physical Education classes. The activity levels and physical condition of the adolescents will be evaluated and identified, before and after 16 weeks of implementation of the training program, as well as their effects on the motivation for the practice.

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Key information

Conditions

Adolescents Behavior Motor Activity

Age range

15 year–17 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Escola Secundária D. Manuel I

Beja, 7800, Portugal

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Students enrolled in years 10-12

Exclusion criteria

  • Students will be ineligible if they do not provide parental consent to participate

Treatment and study plan

High-intensity interval training

Other

The program will be applied in the first 10-15 minutes of each PE class, twice a week, including a brief warm-up, ranged from 14 to 20 intervals, adopting a 2:1 work to rest ratio (ie, 30-s work, followed by 30-s rest)

A cut-point of >=90% of maximal heart rate was used as our criterion for satisfactory compliance to high-intensity exercise

In order to estimate effort, fatigue and training load, a subjective effort scale will be used throughout each session. The heart rate will be monitored throughout the session in real time through Bluetooth technology.

Actigraph accelerometers (wGT3X-BT), randomly distributed by the students in each session, will be used to characterize the intensity of the sessions.

Primary outcomes

  1. Change from baseline Cardio-respiratory fitness at 4 months

    Time frame: 4 months

    Assessed by Yo-Yo Intermitent Recovery Test 1(Tanner & Gore, 2014)

  2. Change from 4 months Cardio-respiratory fitness at 6 months

    Time frame: 6 months

    Assessed by Yo-Yo Intermitent Recovery Test 1(Tanner & Gore, 2014)

  3. Change from baseline Muscular Strength at 4 months

    Time frame: 4 months

    Assessed using push-up and curl-up tests (Plowman, 2013)

  4. Change from 4 months Muscular Strength at 6 months

    Time frame: 6 months

    Assessed using push-up and curl-up tests (Plowman, 2013)

  5. Change from baseline Body Mass Index (BMI) at 4 months

    Time frame: 4 months

    Assessed by Height and Weight (Dobbelsteyn, Joffres, MacLean, & Flowerdew, 2001)

  6. Change from 4 months Body Mass Index (BMI) at 6 months

    Time frame: 6 months

    Assessed by Height and Weight (Dobbelsteyn, Joffres, MacLean, & Flowerdew, 2001)

  7. Change from baseline Physical Activity at 4 months

    Time frame: 4 months

    Assessed by International Physical Activity Questionnaire (iPAQ), and accelerometry (Actigraph - wGT3X-BT)

  8. Change from 4 months Physical Activity at 6 months

    Time frame: 6 months

    Assessed by International Physical Activity Questionnaire (iPAQ), and accelerometry (Actigraph - wGT3X-BT)

  9. Change from baseline Motivation at 4 months

    Time frame: 4 months

    Assessed by Behavioral Regulation In Exercise Questionnaire (Cid et al., 2018).

  10. Change from 4 months Motivation at 6 months

    Time frame: 6 months

    Assessed by Behavioral Regulation In Exercise Questionnaire (Cid et al., 2018).

Sponsors and collaborators

Lead sponsor

University of Évora

Other

Collaborators

  • Agency for Science, Technology and Research

Registry information

Official study title

Effects of a High-Intensity Interval Training Program Integrated in High-School Physical Education Classes, on Physical Condition, Physical Activity and Motivation for Exercise

Important dates

Study start
2019
Primary completion
2019
Study completion
2020
First posted
Jul 17, 2019
Registry last updated
Nov 3, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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