An intervention to train teachers to promote secondary school students’ motivation toward, and participation in physical activities outside of school

Physical Education Teacher Training to Promote Autonomous Motivation Toward Leisure-Time Physical Activity in Secondary School Students (PETALS) – A Randomized Controlled Trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN39374060

Enrollment

500

Registered

2018-07-24

Start date

2018-08-15

Completion date

Unknown

Last updated

2023-09-04

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

Conditions

Inactivity Not Applicable Physical inactivity

Interventions

Participants will be randomised into either the intervention group or the control group by school by a researcher independent of the core research time and blind to the study purpose using a random nu

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Informed consent Teachers: 2. Physical education teachers Students: 3. Eligible to participate in regular school physical education classes 4. No ongoing illness or injury preventing participation in study

Exclusion criteria

Exclusion criteria: N/A

Design outcomes

Primary

Measure	Time frame
School students' participation in out-of-school activity, assessed using the International Physical Activity Questionnaire short form (expressed as the total PA score) immediately after the trial and at the 3 follow-up time points (1 month, 3 months and 6 months post-trial). Group differences in post-trial physical activity scores will be controlled for baseline measures.	—

Secondary

Measure	Time frame
The following will be assessed immediately after the trial and at the 3 follow-up time points (1 month, 3 months and 6 months post-trial): 1. Post-trial physical activity behaviour, assessed using accelerometers in a sub-group of the main sample. 2. Students’ post-trial perceived autonomy support, autonomous motivation towards PA in school and PA out-of-school, attitudes, subjective norms, perceived behavioural control, and intention towards physical activity assessed using previously-validated self-reported questionnaires Group differences in post-trial secondary variables will be controlled for baseline measures.	—

Measure

Time frame

The following will be assessed immediately after the trial and at the 3 follow-up time points (1 month, 3 months and 6 months post-trial): 1. Post-trial physical activity behaviour, assessed using accelerometers in a sub-group of the main sample. 2. Students’ post-trial perceived autonomy support, autonomous motivation towards PA in school and PA out-of-school, attitudes, subjective norms, perceived behavioural control, and intention towards physical activity assessed using previously-validated self-reported questionnaires Group differences in post-trial secondary variables will be controlled for baseline measures.

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Countries

Finland

Outcome results

None listed

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