DDI description: Intervention Study on Increasing Physical Activity and Reducing Sedentary Behaviour of Vocational Students: Student Surveys, Body Composition Measurements and Accelerometer Data 2015-2017 DDI-kuvailu: Ammattiin opiskelevien liikunnan lisäämisen ja istumisen vähentämisen interventiotutkimus: opiskelijakyselyt, kehonkoostumus- ja liikemittaukset 2015-2017 3445 Finnish Social Science Data Archive Finnish Social Science Data Archive Finnish Social Science Data Archive 1.0.0 Intervention Study on Increasing Physical Activity and Reducing Sedentary Behaviour of Vocational Students: Student Surveys, Body Composition Measurements and Accelerometer Data 2015-2017 [metadata]. Metadata version 1.0.0 (2021-03-05). Finnish Social Science Data Archive [producer and distributor]. DOI: https://doi.org/10.60686/t-fsd3445; URN: https://urn.fi/urn:nbn:fi:fsd:T-FSD3445 FSD:n aineistokuvailut (FSD metadata records), joiden tekijä on Suomen yhteiskuntatieteellinen tietoarkisto (Finnish Social Science Data Archive), on lisensoitu Creative Commons 1.0 Yleismaailmallinen (CC0 1.0) -lisenssillä. FSD:n aineistokuvailut (FSD metadata records) by Suomen yhteiskuntatieteellinen tietoarkisto (Finnish Social Science Data Archive) are licensed under a Creative Commons 1.0 Universal (CC0 1.0) license. FSD:n aineistokuvailut (FSD metadata records) av Finlands samhällsvetenskapliga dataarkiv (Finnish Social Science Data Archive) är licensierade under en Creative Commons 1.0 Universiell (CC0 1.0) licens. Intervention Study on Increasing Physical Activity and Reducing Sedentary Behaviour of Vocational Students: Student Surveys, Body Composition Measurements and Accelerometer Data 2015-2017 Ammattiin opiskelevien liikunnan lisäämisen ja istumisen vähentämisen interventiotutkimus: opiskelijakyselyt, kehonkoostumus- ja liikemittaukset 2015-2017 3445 urn:nbn:fi:fsd:T-FSD3445 10.60686/t-fsd3445 Hankonen, Nelli 0000-0002-8464-2478 Haukkala, Ari 0000-0001-8567-1548 In accordance with the agreement between FSD and the depositor. Finnish Social Science Data Archive Individual datasets

Individual datasets that do not belong to any series.

 1.0 Hankonen, Nelli (University of Helsinki) & Haukkala, Ari (University of Helsinki): Intervention Study on Increasing Physical Activity and Reducing Sedentary Behaviour of Vocational Students: Student Surveys, Body Composition Measurements and Accelerometer Data 2015-2017 [dataset]. Data version 1.0 (2021-03-05). Finnish Social Science Data Archive [distributor]. DOI: https://doi.org/10.60686/t-fsd3445; URN: https://urn.fi/urn:nbn:fi:fsd:T-FSD3445 anthropometric data exercise (physical activity) motivation personality traits physical activities sports participation students vocational education institutions Medical and health sciences General health and well-being Physical fitness and exercise Vocational education and training

The intervention study investigated the effectiveness of the 'Let's Move It' programme aiming to increase physical activity (PA) and reduce sedentary behaviour (SB) among students in vocational schools. It was conducted as a cluster-randomised parallel group trial. This dataset consists of 1) students' responses from four self-report surveys conducted over the study period, 2) accelerometer data on the students' moderate and vigorous physical activity (MVPA), sedentary time and breaks in sedentary time measured during three seven-day periods over the study period, 3) the students' body composition measurements made at the beginning and end of the study period, and 4) physical activity diary data. The main themes in the surveys were the students' PA habits and motivation, SB habits, well-being, health behaviour, health status, and personality. The research was funded by the Ministry of Education and Culture (OKM/81/626/2014) and the Ministry of Social Affairs and Health (201310238).

Students were divided into control and intervention groups. The intervention group participated in a variety of measures, such as six Let's Move It group sessions and pause exercises. They also had a possibility to use gym balls and were provided with online material and a workbook. Teachers in the schools played an active role and data were also collected from them (see FSD3446).

The four online questionnaire surveys mainly repeat the same questions. Health status was surveyed with questions on health issues, stress, smoking, eating and sleeping. Other questions charted the amount and kind of physical activity, motivation and barriers for taking exercise, measures taken for enhancing the PA motivation, future PA intentions, perceived PA impact, sedentary behaviour (sitting) and motivation for reducing SB. The surveys were conducted before the start of the programme (initial survey), and then three weeks, six weeks and 14 months after the start of the programme (intervention surveys).

Accelerometer data on MVPA, sedentary time and breaks in sedentary time were collected through students wearing an accelerometer (3-axis Hookie AM 20) fixed to an elastic belt and placed on their hip for seven consecutive days during waking hours, except during shower and other water activities. There were three such seven-day periods: before the start of the programme, at the end of the programme and six months after the end of the programme. The students also filled in paper questionnaires daily (physical activity diaries) during those seven-day periods, specifying whether they were mainly at school, working or in practical training, or at home that day, whether they had any illnesses or injuries preventing physical activity or were engaged in water activities.

Body composition measurements were made with TANITA bioimpedance measurement device (Tanita scale measurements) at two time points: before the start of the programme and six months after the end of the programme. The measurements include weight, height, body fat, body fat mass, body fat-free mass, body mass index (BMI), basal metabolic rate, total body water, bone mass, impedance, visceral fat, metabolic age, muscle mass, ECW, ICW, as well as specific measurements for torso and right and left legs and arms.

Background variables included the respondent's gender, year of birth, study year, field of study, whether worked during studies, and parents' education.

 Finland Helsinki Metropolitan area Individual Individual Students in their first or second study year in six upper secondary vocational schools in the Helsinki Metropolitan area, Finland classes for students with severe physical and mental disabilities or with insufficient skills in the Finnish language, classes that had lessons only on one day a week or less often, and students for whom body composition measurements could not have been made (e.g. due to a cardiac pacemaker) Quantitative Longitudinal: Cohort/Event-based Longitudinal.CohortEventBased Hankonen, Nelli Haukkala, Ari Kaaja, Elisa Köykkä, Katariina Mixed probability and non-probability MixedProbabilityNonprobability

Six vocational schools in the metropolitan area were selected to the study based on the fact that they had the largest number of entry-year students. Only study year 1 and 2 classes were included. Of the six schools, three schools were randomly selected to the intervention programme. The selection was made at school level to facilitate intervention and avoid contamination. Altogether, 1,240 students were invited, of whom 1,112 (89.7%) participated. The data deposited at the archive contains 1,176 cases.

Usable accelerometer data was obtained from 741 students at the first, from 521 (70,3%) students at the second and 406 (54.8%) at the third accelerometer data collection period.

More information on the study design, variables and the intervention programme development can be found in the publications Hankonen, N. et al (2016) "Let's Move It" - a school-based multilevel intervention to increase physical activity and reduce sedentary behaviour among older adolescents in vocational secondary schools: Study protocol for a cluster-randomized trial and Hankonen, N. et al. (2019). Changing activity behaviours in vocational school students: The stepwise development and optimised content of the 'Let's Move it' intervention.

 Self-administered questionnaire: Web-based (CAWI) SelfAdministeredQuestionnaire.CAWI Self-administered questionnaire: Paper SelfAdministeredQuestionnaire.Paper Physical measurements and tests MeasurementsAndTests.Physical Field/Intervention experiment Experiment.FieldIntervention Structured questionnaire Questionnaire.Structured Technical instrument(s) TechnicalInstruments There are no weight variables in the data. 89.7 Detailed and specific data description in Finnish and English. The data are checked and processed in detail. If necessary, the data are anonymised. Finnish Social Science Data Archive The dataset is (D) available only by permission from the data depositor/creator. The data and its creators shall be cited in all publications and presentations for which the data have been used. The bibliographic citation may be in the form suggested by the archive or in the form required by the publication. Notify FSD of all publications where you have used the data by sending the citation information to user-services.fsd@tuni.fi. The original data creators and the archive bear no responsibility for any results or interpretations arising from the reuse of the data. To maintain privacy and confidentiality, variables containing dates of birth and name information have been removed from the archived data. Information containing group names and test supervisor variables containing name initials have also been removed. School names have been replaced with the word [educational institution]. Responses to open-ended questions been removed except for the variable k220_2 (key messages from "Let's Move It" sessions), the responses to which have been checked to exclude identifying information. One case has been removed from body composition measurement data due to outlying values. Variables in the data have been named as follows: variables beginning with the letter K are survey responses, letter A indicates accelerometer variables, letter B indicates body composition measurement variables, BV indicates background variables and the PA diary variables are T1D1day-T4typi. The time point of the data collection is indicated by the number following the underscore. The number after the underscore: 1=the starting point before intervention, 2= three weeks later, 3=six weeks later, and 4=14 months later. For the diary variables T1D1day-T4typi, T indicates the time point and D the day when the value was given. The text 'day' or 'typi' specifies the content of the variable. FSD3212 Pilot Study on Increasing Physical Activity and Reducing Sedentary Behaviour of Vocational Students 2014 FSD3437 Intervention Study on Increasing Physical Activity and Reducing Sedentary Behaviour of Vocational Students: Student Interviews 2015-2017 FSD3446 Intervention Study on Increasing Physical Activity and Reducing Sedentary Behaviour of Vocational Students: Teacher Surveys 2015-2017 Heino, M. (2016). No use reasoning with adolescents? A randomised controlled trial comparing persuasive messages. No use reasoning with adolescents? A randomised controlled trial comparing persuasive messages. Heino, M. T. J., Knittle, K., Fried, E., Sund, R., Haukkala, A., Borodulin, K.... Hankonen, N. (2019). Visualisation and network analysis of physical activity and its determinants: Demonstrating opportunities in analysing baseline associations in the Let's Move It trial. Health Psychology and Behavioral Medicine, 7(1), 269-289. https://doi.org/10.1080/21642850.2019.1646136 Visualisation and network analysis of physical activity and its determinants: Demonstrating opportunities in analysing baseline associations in the Let's Move It trial 10.1080/21642850.2019.1646136 Heino, M. T. J., Knittle, K., Haukkala, A., Vasankari, T., & Hankonen, N. (2018). Simple and rationale-providing SMS reminders to promote accelerometer use: a within-trial randomised trial comparing persuasive messages. BMC Public Health, 18(1), 1352. https://doi.org/10.1186/s12889-018-6121-2 Simple and rationale-providing SMS reminders to promote accelerometer use: a within-trial randomised trial comparing persuasive messages 10.1186/s12889-018-6121-2 Köykkä, K. (2017). Is habit formation effective in making students' sitting reduction a regular routine for vocational school teachers? Evaluating outcomes and habit formation processes in the Let's Move It teacher intervention. Is habit formation effective in making students' sitting reduction a regular routine for vocational school teachers? Evaluating outcomes and habit formation processes in the Let's Move It teacher intervention. Köykkä, K., Absetz, P., Araujo-Soares, V., Knittle, K., Sniehotta, F. F., & Hankonen, N. (2019). Combining the reasoned action approach and habit formation to reduce sitting time in classrooms: Outcome and process evaluation of the Let's Move It teacher intervention. Journal of Experimental Social Psychology, 81, 27-38. https://doi.org/10.1016/j.jesp.2018.08.004 Combining the reasoned action approach and habit formation to reduce sitting time in classrooms: Outcome and process evaluation of the Let's Move It teacher intervention. 10.1016/j.jesp.2018.08.004 Martikainen, Oona (2025) Liikuntamotivaation ja liikunnan sukupuolierot Let's Move It -interventiossa: Selittääkö motivaatio tyttöjen parempia tuloksia? Yhteiskuntatutkimuksen pro gradu -tutkielma. Tampere: Tampereen yliopisto. https://urn.fi/URN:NBN:fi:tuni-202504244037 Liikuntamotivaation ja liikunnan sukupuolierot Let's Move It -interventiossa: Selittääkö motivaatio tyttöjen parempia tuloksia? URN:NBN:fi:tuni-202504244037 Nummela, N. (2016). Persoonallisuuspiirteiden ja motivaation yhteys fyysiseen aktiivisuuteen ammattiin opiskelevilla. Persoonallisuuspiirteiden ja motivaation yhteys fyysiseen aktiivisuuteen ammattiin opiskelevilla. Palsola, M. (2020). Associations between behaviour change technique use, quality of motivation and physical activity. Associations between behaviour change technique use, quality of motivation and physical activity. Rehnström, K. (2015). Ennustaako järkeillyn käyttäytymisen lähestymistapa paikallaanoloa ja sen rajoittamista ammattiin opiskelevilla nuorilla? Ennustaako järkeillyn käyttäytymisen lähestymistapa paikallaanoloa ja sen rajoittamista ammattiin opiskelevilla nuorilla? More information on the 'Let's move it' programme in Finnish. A general description of the programme and a material bank produced by the research project for educational purposes (in Finnish).