One-year effects of the FIT FIRST 20 high-intensity and multisport physical education program on cardiorespiratory fitness in early adolescents

One-year effects of the FIT FIRST 20 high-intensity and multisport physical education program on cardiorespiratory fitness in early adolescents: A cluster-randomized controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN14624515

Enrollment

1085

Registered

2023-10-30

Start date

2023-04-01

Completion date

Unknown

Last updated

2026-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Low physical fitness and related psychological risk indicators in early adolescence Other

Interventions

Current interventions as of 09/01/2026: FIT FIRST 20 is a high-intensity and multisport physical education program designed to target multiple domains of health, including cardiorespiratory fitness, m

Eligibility

Sex/Gender

All

Age

9 Years to 14 Years

Inclusion criteria

Inclusion criteria: 1. Student enrolled in a school in Denmark 2. Student attending 4th, 5th or 6th grade during the research project period

Exclusion criteria

Exclusion criteria: Students attending special-needs schools or schools in municipalities implementing targeted child-movement initiatives.

Design outcomes

Primary

Measure	Time frame
Current primary outcome measures as of 09/01/2026: Previous primary outcome measures: All outcomes are measured at baseline as well as 1 year and 2 years after intervention start: 1. Physical fitness measured through the following physical tests: Yo-Yo IR1 Children´s test, the standing long jump test, arrow-agility test, balance test, the handgrip strength test, resting heart rate, blood pressure measurement, and InBody 230 bioimpedance measurements of body mass, lean mass, and fat percentage, 2. Well-being, measured using KIDSCREEN-27 3. Overall self-worth, measured using the Physical Self-Inventory (PSI-S) 4. Motivation to movement, measured using the perceived locus of causality questionnaire and the psychological need states in sport questionnaire	—

Measure

Time frame

Current primary outcome measures as of 09/01/2026: Previous primary outcome measures: All outcomes are measured at baseline as well as 1 year and 2 years after intervention start: 1. Physical fitness measured through the following physical tests: Yo-Yo IR1 Children´s test, the standing long jump test, arrow-agility test, balance test, the handgrip strength test, resting heart rate, blood pressure measurement, and InBody 230 bioimpedance measurements of body mass, lean mass, and fat percentage, 2. Well-being, measured using KIDSCREEN-27 3. Overall self-worth, measured using the Physical Self-Inventory (PSI-S) 4. Motivation to movement, measured using the perceived locus of causality questionnaire and the psychological need states in sport questionnaire

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Secondary

Measure	Time frame
Well-being, measured using KIDSCREEN-27, Self-worth, measured using the Physical Self-Inventory - very short (PSI-VS), Motivation to engage in physical activity, measured using the Perceived Locus of Causality questionnaire, Psychological need satisfaction, measured using the Psychological Need States in Sport questionnaire. All outcomes are measured at baseline as well as one year and two years after intervention start. Current primary outcome measures as of 09/01/2026: Previous primary outcome measures: Sports club participation. Data are collected through a questionnaire. Questions include "which sports do you practice in your spare time?" and "how many times a week do you practice sports in your spare time?". Measured at baseline as well as 1 year and 2 years after intervention start.	—

Measure

Time frame

Well-being, measured using KIDSCREEN-27, Self-worth, measured using the Physical Self-Inventory - very short (PSI-VS), Motivation to engage in physical activity, measured using the Perceived Locus of Causality questionnaire, Psychological need satisfaction, measured using the Psychological Need States in Sport questionnaire. All outcomes are measured at baseline as well as one year and two years after intervention start. Current primary outcome measures as of 09/01/2026: Previous primary outcome measures: Sports club participation. Data are collected through a questionnaire. Questions include "which sports do you practice in your spare time?" and "how many times a week do you practice sports in your spare time?". Measured at baseline as well as 1 year and 2 years after intervention start.

—

Countries

Denmark

Contacts

Public ContactChiara Cimenti

ccimenti@health.sdu.dk+45 (0)65509311

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026