Frequent intense training in schools for teenagers

The physical health effects of frequent intense training in schools for teenagers

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN76457599

Enrollment

1200

Registered

2024-07-04

Start date

2022-08-01

Completion date

Unknown

Last updated

2026-08-10

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

Conditions

Prevention of lifestyle diseases Other

Interventions

Randomization will be performed on a school level by picking notes with school names from a bowl. Pupils will be randomly allocated to either the intervention group or a usual practice control group.

Eligibility

Sex/Gender

All

Age

12 Years to 17 Years

Inclusion criteria

Inclusion criteria: Pupils at the recruited schools in 6th to 9th grade

Exclusion criteria

Exclusion criteria: Not meeting the participant inclusion criteria

Design outcomes

Primary

Measure	Time frame
Cardiorespiratory fitness measured using the Yoyo test at baseline and after 10 weeks	—

Secondary

Measure	Time frame
The following secondary outcome measures will be assessed at baseline and after 10 weeks: 1. Body composition measured using bioimpedance (InBody 270) 2. Resting heart rate and blood pressure measured using the Oscillometric method 3. Balance measured using the stork balance test 4. Muscle strength measured using the standing long jump test	—

Countries

Denmark

Contacts

Public ContactMalte Larsen

mnlarsen@health.sdu.dk+45 40304689

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Aug 25, 2026