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Completed

NCT Number: NCT02626767

Effect of Novel High-intensity Interval Training on Health and Fitness Outcomes in English Adolescents

Low-volume high-intensity interval exercise training may improve aspects of health and fitness in young people, but interventions must be practical and engaging. The investigators examined the effect of a novel school-based low-volume high-intensity interval training programme on health, fitness and physical activity outcomes in adolescent school pupils. 101 English adolescents aged 13-14 years took part in the study. Participants were healthy male and female volunteers, recruited from four schools in Northeast England. Using a non-randomised design, two schools took part in the intervention, and two were assigned to the control. Those in the intervention group completed a 10-week school-based high-intensity interval exercise training programme. The intervention took place three times per week, and comprised of 4-7 repetitions of 45 s maximal effort exercise (boxing, dance, soccer and basketball drills), each interspersed with 90-s rest. Participants were encouraged to work maximally during the 45-s repetitions. Control participants were instructed not to change their lifestyle, dietary or physical activity habits during the intervention period, and maintain their normal school physical education routine. Study outcomes were blood lipid and glucose levels, body composition, cardiorespiratory fitness, carotid intima-media thickness, physical activity levels, serum C-reactive protein levels and blood pressure.

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Key information

Conditions

High-Intensity Interval Training

Age range

13 year–15 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Must attend one of the four schools that the study will take place in
  • Must be in the Year 9 English school year (aged 13-15 years)
  • Must provide parental consent and participant assent
  • Must be free from exclusion criteria

Exclusion criteria

  • Symptoms of or known presence of heart disease or major atherosclerotic cardiovascular disease
  • Condition or injury or co-morbidity affecting the ability to undertake exercise
  • Diabetes mellitus
  • Early family history of sudden cardiac death
  • Condition or disorder which is communicable via blood
  • Pregnancy or likelihood of pregnancy

Treatment and study plan

Novel high-intensity interval exercise training

Other

Please see information already included in the 'intervention' arm description.

Primary outcomes

  1. Change from baseline (0 weeks) waist circumference at the post-intervention time point (10 weeks)

    Time frame: Baseline (0 weeks) and post-intervention (10-weeks)

  2. Change from baseline (0 weeks) blood lipids at the post-intervention time point (10 weeks) (assessed via finger prick blood sampling)

    Time frame: Baseline (0 weeks) and post-intervention (10-weeks)

  3. Change from baseline (0 weeks) blood glucose at the post-intervention time point (10 weeks) (assessed via finger prick blood sampling)

    Time frame: Baseline (0 weeks) and post-intervention (10-weeks)

  4. Change from baseline (0 weeks) blood pressure at the post-intervention time point (10 weeks)

    Time frame: Baseline (0 weeks) and post-intervention (10-weeks)

  5. Change from baseline (0 weeks) carotid artery intima-media thickness at the post-intervention time point (10 weeks)

    Time frame: Baseline (0 weeks) and post-intervention (10-weeks)

  6. Change from baseline (0 weeks) body mass index at the post-intervention time point (10 weeks)

    Time frame: Baseline (0 weeks) and post-intervention (10-weeks)

  7. Change from baseline (0 weeks) serum C-reactive protein at the post-intervention time point (10 weeks)

    Time frame: Baseline (0 weeks) and post-intervention (10-weeks)

  8. Change from baseline (0 weeks) 20m shuttle run test performance (indirect measure of cardiorespiratory fitness) at the post-intervention time point (10 weeks)

    Time frame: Baseline (0 weeks) and post-intervention (10-weeks)

  9. Change from baseline (0 weeks) daily physical activity levels (assessed via accelerometry) at the post-intervention time point (10 weeks)

    Time frame: Baseline (0 weeks) and post-intervention (10-weeks)

  10. Change from baseline (0 weeks) body weight at the post-intervention time point (10 weeks)

    Time frame: Baseline (0 weeks) and post-intervention (10-weeks)

  11. Change from baseline (0 weeks) percentage body fat at the post-intervention time point (10 weeks)

    Time frame: Baseline (0 weeks) and post-intervention (10-weeks)

  12. Change from baseline (0 weeks) skeletal muscle mass at the post-intervention time point (10 weeks)

    Time frame: Baseline (0 weeks) and post-intervention (10-weeks)

Other outcomes

  1. Heart rate during high-intensity interval training exercise sessions

    Time frame: Up to 10 weeks

Sponsors and collaborators

Lead sponsor

Teesside University

Other

Collaborators

  • Liverpool John Moores University

Registry information

Official study title

Effect of Novel High-intensity Interval Training on Cardiometabolic Health and Physical Activity Levels in English Adolescents: A School-based Exploratory Controlled Before-and-after Trial

Important dates

Study start
2011
Primary completion
2011
Study completion
2011
First posted
Dec 10, 2015
Registry last updated
Dec 10, 2015

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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