Sedentary LifestyleNCT06196645
Development of a Planned Behavior Theory-Based Physical Activity Application for High School Adolescent Girls
A study testing Physical Activity Intervention Based on Theory of Planned Behavior in people with Sedentary Lifestyle and Sedentary Behavior, run by Eskisehir Technical University at 1 site in Turkey (Türkiye).
Trial summary
The aim of this study is to examine the effects of a physical activity intervention plan developed based on the theory of planned behavior on the physical activity levels of adolescent girls, their sedentary time and their knowledge about physical activity. Read more about this study
- Who is it for?
- Ages 15 to 18 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Sedentary Lifestyle, Sedentary Behavior, Physical Activity Level
- What is being tested?
- Physical Activity Intervention Based on Theory of Planned Behavior
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 77 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 10 Feb 2024to 31 Dec 2024
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 15 to 18 years
- Women only
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- Bein high school student
- Do not have any health problems that would prevent from participating in exercise,
- Not participating any another exercise/training program during the research process,
- Voluntarily participation -Being suitable for exercise participation according to Physical Activity -- Readiness Questionnaire (PARQ) test results
Who cannot join
- Presence of any significant health conditions that may pose a risk during exercise (e.g., heart conditions, severe respiratory disorders, uncontrolled hypertension).
- A history of musculoskeletal injuries or conditions that would limit participation in physical fitness activities.
- Current or recent participation in another exercise or fitness program.
- Inability to provide informed consent or unwillingness to participate voluntarily.
- Inability to provide parental consent.
- Any medical condition that contraindicates exercise or physical activity as determined by a healthcare professional.
- Age restrictions (younger than 15 and older than 18).
- Cognitive impairments that would hinder the ability to understand and follow exercise instructions.
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Eskişehir Technical University
Eskişehir, Tepebaşı, 26555
About this study
Official title: Development Of A Physical Activity İntervention Plan Based On The Theory Of Planned Behavior For High School Adolescent Girls
The aim of this study is to examine the effects of a physical activity intervention plan developed based on the theory of planned behavior on the physical activity levels of adolescent girls, their sedentary time and their knowledge about physical activity.
Within the scope of this research, answers to the following research questions will be sought;
Read more
- Is there a difference in physical activity level between participants in the physical activity intervention plan groups and the control group?
- Is there a difference in terms of daily sedentary time between participants in the physical activity intervention plan groups and the control group?
- Is there a difference in beliefs about physical activity between participants in the physical activity intervention plan groups and the control group?
In this context, researchers will compare 3 groups within the scope of the data provided by two preliminary studies conducted previously. These groups; (1) intervention group based on the theory of planned behavior, (2) intervention group based on the theory of planned behavior with family participation, (3) control group.
Read the detailed description
While the physical activity participation of adolescents in Turkey and around the world is quite low, this is more pronounced for girls. The low physical activity participation rates seen in this group shed light on the negative situations to be seen in the future in terms of public health and the economy. The fact that health-related behavior patterns acquired during adolescence form a highly effective basis for the rest of life makes it necessary to develop effective, low-cost physical activity intervention plans for adolescents that take into account individual needs. Research on physical activity intervention, while generally targeting groups with low physical activity levels, is applied in different contexts (school, family, school and family, living environment) where these groups spend their time. In this respect, school-based interventions, where adolescents spend most of their time, come to the fore. For plans to be effective, they should be based on a research process and their theoretical foundations should be inclusive. While the theory of planned behavior, which has an important place in shaping health behaviors and explains the formation and continuity of behavior by addressing the attitude, norms created by the social environment, and the control perceived by the person towards the behavior, constitutes the theoretical basis of this research, the aim of the research is to create and test a school-based physical activity intervention plan based on the theory of planned behavior, targeting adolescent girls.
Qualitative and quantitative research methods were applied through a multi-stage design process, and the findings revealed the need to create an effective intervention plan guide for adolescent girls in Turkish society. These phases included (I) a study to explain which factors are important for physical activity behavior in adolescent girls, including open-ended questions and semi-structured interviews; (II) the process of developing a measurement tool in the light of the data obtained with these qualitative methods; and (III) survey research that adopted the general survey model and reached a large population. As a result of this process, which has been going on for about 48 months, the physical activity intervention plan to be implemented has been shaped. With this intervention, it is aimed to create significant effects among adolescent girls in terms of physical activity and sedentary time and to positively affect their beliefs about physical activity.
The physical activity intervention plan to be developed according to the planned behavior theory will be based on the information obtained in pilot studies that have already been completed. The plan will be implemented in selected high schools affiliated with the Turkish Ministry of National Education. The developed protocol is planned to be implemented over two different time periods. The reason for this is that seasonal factors are emphasized as an important factor in carrying the gains provided in physical activity intervention plans into daily life (Rowland et al., 2006; Tucker \& Gililand, 2007; Belanger et al., 2009; Kornides et al., 2018). The contents of the intervention plan will be delivered to students for 2 hours in selected physical education and sports classes. It is planned to implement this plan in physical education classes for one semester. Considering that the implementation will take place in one academic year, data will be collected at the beginning and end of the first semester and at the end of the second semester. Data collection processes are planned to take approximately 1-1.5 months. Thus, it will be ensured that this application will be carried out for 3-3.5 months in a semester. While planning this period, Owen et al. (2017) reviews and meta-analyses were taken into consideration.
Structurally, the physical activity intervention plan is planned to include four dimensions based on the theory of planned behavior. The first two of these are: (I) transferring information on health-related physical fitness and physical activity; (II) taking individual responsibility for physical activity follow-up; and (II) simple individual planning, which will affect the level of physical activity at the individual level. Another dimension is the inclusion in the program of the types of activities that the female adolescents (III) chose and declared that they would enjoy participating in. The last dimension, as emphasized in the theory of planned behavior, is the invitation of significant others, which are the family, teachers, and other students, including male students, with whom the target group is in constant social interaction, to this plan, and all of the practices are open to them. However, data will not collected from them.
- Being tested
- Physical Activity Intervention Based on Theory of Planned Behavior
- Keywords
- Theory of planned behavior, physical activity intervention, adolescent girls
- Medical subject headings
- Sedentary Behavior
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Physical Activity Intervention Based on Theory of Planned BehaviorBehavioural
The content of the intervention plan to be implemented consists of the following components: (I) transferring knowledge about health-related physical fitness and physical activity, (II) taking individual responsibility for physical activity monitoring and simple individual planning, (III) including in the program the types of activities that female adolescents choose and declare that they would enjoy participating in.
| Study group | Role | What they receive |
|---|---|---|
| Intervention Group-1 | Experimental | Participants in this arm of the experimental group will participate in a school-based intervention program that is based on the theory of planned behavior and includes behavior change techniques. These participants will participate in the intervention plan only in physical education and sports classes at their schools. Receives: Behavioral: Physical Activity Intervention Based on Theory of Planned Behavior |
| Control Group | No intervention | This group will not be involved in any implementation until the end of the research. Ethically, after the research is completed, the proposal to repeat the most effective intervention arm for this group will be presented to the participants in this group. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Affection for Physical Activity
Affection for Physical Activity is one of the subdomains of the Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of ten items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 50, and the minimum score is 5. The higher scores obtrained in the subdimension represent higher belief in that subscale.
Measured: 4 months
Social Expectations in Physical Activity
Social Expectations in Physical Activity is one of the subdomains of the Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of three items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 15, and the minimum score is 3. The higher scores obtained in the subdimension represent higher belief in that subscale.
Measured: 4 months
Health Expectations in Physical Activity
Health Expectations in Physical Activity is one of the subdomains of the Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of eight items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 40, and the minimum score is 8. The higher scores obtained in the subdimension represent higher belief in that subscale.
Measured: 4 months
Attitutde towards Physical Activity
Attitude towards Physical Activity is a composite score of Affection for Physical Activity, Social Expectations in Physical Activity and Health Expectations in Physical Activity subdimensions of the Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of twenty-one items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 105, and the minimum score is 21. The higher scores obtained in the subdimension represent higher attitudes.
Measured: 4 months
Parental Support in Physical Activity
Parental Support in Physical Activity is one of the subdomains of the Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of three items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 15, and the minimum score is 3. The higher scores obtained in the subdimension represent higher belief in that subscale.
Measured: 4 months
Peer Support in Physical Activity
Peer Support in Physical Activity is one of the subdomains of Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of three items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 15, and the minimum score is 3. The higher scores obtained in the subdimension represent higher belief in that subscale.
Measured: 4 months
Subjective Norms in Physical Activity
Subjective Norms in Physical Activity is a composite score of Parental Support in Physical Activity and Peer Support in Physical Activity, a subdimension of Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of six items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 30, and the minimum score is 6. The higher scores obtained in the subdimension represent higher attitudes.
Measured: 4 months
Perceived Behavioral Control in Physical Activity
Perceived Behavioral Control in Physical Activity is one of the subdomains of the Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of five items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 25, and the minimum score is 5. The higher scores obtained in the subdimension represent higher belief in that subscale.
Measured: 4 months
Body Mass Index (BMI)
Body Mass Index (BMI) is a numerical value derived from an individual's weight and height. The BMI is going to be expressed in units of kg/m² (kilograms per square meter) in the metric system.
Measured: 4 months
Average kcals per day
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Average kilocalories (kcals) per day refer to the mean energy expenditure related to physical activity over a 24-hour period, as estimated by the wGT3X-BT accelerometer.
Measured: 4 months
Time in light physical activity
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Time in light physical activity is the duration spent in activities classified as light intensity by the wGT3X-BT accelerometer.
Measured: 4 months
Tme in moderate to vigorous physical activity
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Time in moderate to vigorous physical activity is the combined duration spent in activities classified as both moderate and vigorous intensity by the wGT3X-BT accelerometer.
Measured: 4 months
Time in vigorous physical activity
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Time in vigorous physical activity represents the duration spent in activities classified as vigorous intensity by the wGT3X-BT accelerometer.
Measured: 4 months
Time in moderate physical activity
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Time in moderate physical activity is the duration spent in activities classified as moderate intensity by the wGT3X-BT accelerometer.
Measured: 4 months
Secondary outcomes (7)
Body Weight
Body weight refers to the mass of an individual's body, and is going to measured by using Tanita BC-601 in kg.
Measured: 4 months
Body Height
Body weight is a measurement of the vertical distance from the bottom of the feet to the top of the head when a person is standing upright. It is going to be measured by using Leicester Height Measure MK-II in m.
Measured: 4 months
Activity Kilocalories
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Activity kilocalories (activity kcals), as an outcome measure from a GT3X Link accelerometer, refer to the estimated energy expenditure related to physical activity over a specified time period. The accelerometer, which records acceleration in three dimensions, allows for the assessment of different activity intensities, helping to quantify the amount of energy expended during various activities
Measured: 4 months
Total Sedentary Bout
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Total sedentary bouts, as an outcome measure from a GT3X Link accelerometer, typically refer to the cumulative duration or count of extended periods of sedentary behavior detected by the accelerometer over a specified time period. Sedentary bouts are intervals during which a person is engaged in minimal or no physical activity, often characterized by activities such as sitting or lying down.
Measured: 4 months
Average kcals per hour
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Average kilocalories (kcals) per hour represent the mean energy expenditure related to physical activity calculated on an hourly basis using data recorded by the wGT3X-BT accelerometer.
Measured: 4 months
Total sedentary bouts
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Total sedentary bouts refer to the cumulative count or duration of extended periods of sedentary behavior detected by the wGT3X-BT accelerometer over a specified time period.
Measured: 4 months
Total sedentary breaks
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Total sedentary breaks represent the cumulative count of interruptions in sedentary behavior detected by the wGT3X-BT accelerometer over a specified time period.
Measured: 4 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Jan 2024
- Study start10 Feb 2024
- Primary completion15 Jun 2024
- Study completion31 Dec 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for Sedentary LifestyleStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 77 participants (actual)
Sponsor and investigators
- Lead sponsor
- Eskisehir Technical University
- Sponsor type
- University, hospital or other
- Collaborators
- The Scientific and Technological Research Council of Turkey
- Responsible party
- Principal investigator, Gunay yildizer, Eskisehir Technical University
- Investigators
- Günay Yıldızer, Ph.D., Principal investigator, Eskiehir Technical University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06196645
- Sponsor's protocol ID
- EskisehirTU-SBF-GY02
- Status last verified
- May 2025
- First submitted
- 26 Dec 2023
- Last updated
- 18 May 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Owen MB, Curry WB, Kerner C, Newson L, Fairclough SJ. The effectiveness of school-based physical activity interventions for adolescent girls: A systematic review and meta-analysis. Prev Med. 2017 Dec;105:237-249. doi: 10.1016/j.ypmed.2017.09.018. Epub 2017 Sep 28.
PubMed 28964852Belanger M, Gray-Donald K, O'Loughlin J, Paradis G, Hanley J. Influence of weather conditions and season on physical activity in adolescents. Ann Epidemiol. 2009 Mar;19(3):180-6. doi: 10.1016/j.annepidem.2008.12.008.
PubMed 19217000Kornides ML, Rimm EB, Chavarro JE, Gillman MW, Rosner B, Field AE. Seasonal Variations in Meeting Physical Activity Recommendations and Development of Overweight during Adolescence. Child Obes. 2018 Jan;14(1):33-40. doi: 10.1089/chi.2017.0118. Epub 2017 Sep 5.
PubMed 28872346Tucker P, Gilliland J. The effect of season and weather on physical activity: a systematic review. Public Health. 2007 Dec;121(12):909-22. doi: 10.1016/j.puhe.2007.04.009. Epub 2007 Oct 24.
PubMed 17920646Rowlands AV, Hughes DR. Variability of physical activity patterns by type of day and season in 8-10-year-old boys. Res Q Exerc Sport. 2006 Sep;77(3):391-5. doi: 10.1080/02701367.2006.10599373. No abstract available.
PubMed 17020083
Study at a glance
From the registry record, last updated by the sponsor on 18 May 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Development Of A Physical Activity İntervention Plan Based On The Theory Of Planned Behavior For High School Adolescent Girls
- ClinicalTrials.gov ID
- NCT06196645
- Acronym / sponsor ID
- EskisehirTU-SBF-GY02
- Keywords
- Theory of planned behavior, physical activity intervention, adolescent girls
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 77 participants (actual)
- Lead sponsor
- Eskisehir Technical UniversityUniversity, hospital or other
- Collaborators
- The Scientific and Technological Research Council of Turkey
- Study start
- 10 Feb 2024 (actual)
- Primary completion
- 15 Jun 2024 (actual)
- Study completion
- 31 Dec 2024 (actual)
- First posted
- 9 Jan 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this study is to examine the effects of a physical activity intervention plan developed based on the theory of planned behavior on the physical activity levels of adolescent girls, their sedentary time and their knowledge about physical activity.
Within the scope of this research, answers to the following research questions will be sought;
- Is there a difference in physical activity level between participants in the physical activity intervention plan groups and the control group?
- Is there a difference in terms of daily sedentary time between participants in the physical activity intervention plan groups and the control group?
- Is there a difference in beliefs about physical activity between participants in the physical activity intervention plan groups and the control group?
In this context, researchers will compare 3 groups within the scope of the data provided by two preliminary studies conducted previously. These groups; (1) intervention group based on the theory of planned behavior, (2) intervention group based on the theory of planned behavior with family participation, (3) control group.
Detailed description
While the physical activity participation of adolescents in Turkey and around the world is quite low, this is more pronounced for girls. The low physical activity participation rates seen in this group shed light on the negative situations to be seen in the future in terms of public health and the economy. The fact that health-related behavior patterns acquired during adolescence form a highly effective basis for the rest of life makes it necessary to develop effective, low-cost physical activity intervention plans for adolescents that take into account individual needs. Research on physical activity intervention, while generally targeting groups with low physical activity levels, is applied in different contexts (school, family, school and family, living environment) where these groups spend their time. In this respect, school-based interventions, where adolescents spend most of their time, come to the fore. For plans to be effective, they should be based on a research process and their theoretical foundations should be inclusive. While the theory of planned behavior, which has an important place in shaping health behaviors and explains the formation and continuity of behavior by addressing the attitude, norms created by the social environment, and the control perceived by the person towards the behavior, constitutes the theoretical basis of this research, the aim of the research is to create and test a school-based physical activity intervention plan based on the theory of planned behavior, targeting adolescent girls.
Qualitative and quantitative research methods were applied through a multi-stage design process, and the findings revealed the need to create an effective intervention plan guide for adolescent girls in Turkish society. These phases included (I) a study to explain which factors are important for physical activity behavior in adolescent girls, including open-ended questions and semi-structured interviews; (II) the process of developing a measurement tool in the light of the data obtained with these qualitative methods; and (III) survey research that adopted the general survey model and reached a large population. As a result of this process, which has been going on for about 48 months, the physical activity intervention plan to be implemented has been shaped. With this intervention, it is aimed to create significant effects among adolescent girls in terms of physical activity and sedentary time and to positively affect their beliefs about physical activity.
The physical activity intervention plan to be developed according to the planned behavior theory will be based on the information obtained in pilot studies that have already been completed. The plan will be implemented in selected high schools affiliated with the Turkish Ministry of National Education. The developed protocol is planned to be implemented over two different time periods. The reason for this is that seasonal factors are emphasized as an important factor in carrying the gains provided in physical activity intervention plans into daily life (Rowland et al., 2006; Tucker \& Gililand, 2007; Belanger et al., 2009; Kornides et al., 2018). The contents of the intervention plan will be delivered to students for 2 hours in selected physical education and sports classes. It is planned to implement this plan in physical education classes for one semester. Considering that the implementation will take place in one academic year, data will be collected at the beginning and end of the first semester and at the end of the second semester. Data collection processes are planned to take approximately 1-1.5 months. Thus, it will be ensured that this application will be carried out for 3-3.5 months in a semester. While planning this period, Owen et al. (2017) reviews and meta-analyses were taken into consideration.
Structurally, the physical activity intervention plan is planned to include four dimensions based on the theory of planned behavior. The first two of these are: (I) transferring information on health-related physical fitness and physical activity; (II) taking individual responsibility for physical activity follow-up; and (II) simple individual planning, which will affect the level of physical activity at the individual level. Another dimension is the inclusion in the program of the types of activities that the female adolescents (III) chose and declared that they would enjoy participating in. The last dimension, as emphasized in the theory of planned behavior, is the invitation of significant others, which are the family, teachers, and other students, including male students, with whom the target group is in constant social interaction, to this plan, and all of the practices are open to them. However, data will not collected from them.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Intervention Group-1 | Experimental | Behavioral: Physical Activity Intervention Based on Theory of Planned BehaviorParticipants in this arm of the experimental group will participate in a school-based intervention program that is based on the theory of planned behavior and includes behavior change techniques. These participants will participate in the intervention plan only in physical education and sports classes at their schools. |
| Control Group | No intervention | –This group will not be involved in any implementation until the end of the research. Ethically, after the research is completed, the proposal to repeat the most effective intervention arm for this group will be presented to the participants in this group. |
Who may qualify
- Ages
- 15 to 18 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (4 listed)
- Bein high school student
- Do not have any health problems that would prevent from participating in exercise,
- Not participating any another exercise/training program during the research process,
- Voluntarily participation -Being suitable for exercise participation according to Physical Activity -- Readiness Questionnaire (PARQ) test results
Key exclusion criteria (8 listed)
- Presence of any significant health conditions that may pose a risk during exercise (e.g., heart conditions, severe respiratory disorders, uncontrolled hypertension).
- A history of musculoskeletal injuries or conditions that would limit participation in physical fitness activities.
- Current or recent participation in another exercise or fitness program.
- Inability to provide informed consent or unwillingness to participate voluntarily.
- Inability to provide parental consent.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Physical Activity Intervention Based on Theory of Planned BehaviorThe content of the intervention plan to be implemented consists of the following components: (I) transferring knowledge about health-related physical fitness and physical activity, (II) taking individual responsibility for physical activity monitoring and simple individual planning, (III) including in the program the types of activities that female adolescents choose and declare that they would enjoy participating in. | Behavioural | Intervention Group-1 |
Primary outcome
Affection for Physical Activity
Time frame: 4 months
Affection for Physical Activity is one of the subdomains of the Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of ten items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 50, and the minimum score is 5. The higher scores obtrained in the subdimension represent higher belief in that subscale.
Social Expectations in Physical Activity
Time frame: 4 months
Social Expectations in Physical Activity is one of the subdomains of the Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of three items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 15, and the minimum score is 3. The higher scores obtained in the subdimension represent higher belief in that subscale.
Health Expectations in Physical Activity
Time frame: 4 months
Health Expectations in Physical Activity is one of the subdomains of the Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of eight items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 40, and the minimum score is 8. The higher scores obtained in the subdimension represent higher belief in that subscale.
Attitutde towards Physical Activity
Time frame: 4 months
Attitude towards Physical Activity is a composite score of Affection for Physical Activity, Social Expectations in Physical Activity and Health Expectations in Physical Activity subdimensions of the Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of twenty-one items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 105, and the minimum score is 21. The higher scores obtained in the subdimension represent higher attitudes.
Parental Support in Physical Activity
Time frame: 4 months
Parental Support in Physical Activity is one of the subdomains of the Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of three items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 15, and the minimum score is 3. The higher scores obtained in the subdimension represent higher belief in that subscale.
Peer Support in Physical Activity
Time frame: 4 months
Peer Support in Physical Activity is one of the subdomains of Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of three items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 15, and the minimum score is 3. The higher scores obtained in the subdimension represent higher belief in that subscale.
Subjective Norms in Physical Activity
Time frame: 4 months
Subjective Norms in Physical Activity is a composite score of Parental Support in Physical Activity and Peer Support in Physical Activity, a subdimension of Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of six items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 30, and the minimum score is 6. The higher scores obtained in the subdimension represent higher attitudes.
Perceived Behavioral Control in Physical Activity
Time frame: 4 months
Perceived Behavioral Control in Physical Activity is one of the subdomains of the Physical Activity Belief Questionnaire (PAB-Q). The subscale consisted of five items answered on a 5-point Likert scale. The maximum score that can be obtained from this subscale is 25, and the minimum score is 5. The higher scores obtained in the subdimension represent higher belief in that subscale.
Body Mass Index (BMI)
Time frame: 4 months
Body Mass Index (BMI) is a numerical value derived from an individual's weight and height. The BMI is going to be expressed in units of kg/m² (kilograms per square meter) in the metric system.
Average kcals per day
Time frame: 4 months
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Average kilocalories (kcals) per day refer to the mean energy expenditure related to physical activity over a 24-hour period, as estimated by the wGT3X-BT accelerometer.
Time in light physical activity
Time frame: 4 months
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Time in light physical activity is the duration spent in activities classified as light intensity by the wGT3X-BT accelerometer.
Tme in moderate to vigorous physical activity
Time frame: 4 months
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Time in moderate to vigorous physical activity is the combined duration spent in activities classified as both moderate and vigorous intensity by the wGT3X-BT accelerometer.
Time in vigorous physical activity
Time frame: 4 months
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Time in vigorous physical activity represents the duration spent in activities classified as vigorous intensity by the wGT3X-BT accelerometer.
Time in moderate physical activity
Time frame: 4 months
This outcome measure is going to be measured by Actigraph wGT3X-BT accelerometer. Time in moderate physical activity is the duration spent in activities classified as moderate intensity by the wGT3X-BT accelerometer.
7 secondary outcomes
Body Weight
Time frame: 4 months
Body Height
Time frame: 4 months
Activity Kilocalories
Time frame: 4 months
Total Sedentary Bout
Time frame: 4 months
Average kcals per hour
Time frame: 4 months
Total sedentary bouts
Time frame: 4 months
Total sedentary breaks
Time frame: 4 months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 May 2025.
- Background: PubMed 28964852Owen MB, Curry WB, Kerner C, Newson L, Fairclough SJ. The effectiveness of school-based physical activity interventions for adolescent girls: A systematic review and meta-analysis. Prev Med. 2017 Dec;105:237-249. doi: 10.1016/j.ypmed.2017.09.018. Epub 2017 Sep 28.
- Background: PubMed 19217000Belanger M, Gray-Donald K, O'Loughlin J, Paradis G, Hanley J. Influence of weather conditions and season on physical activity in adolescents. Ann Epidemiol. 2009 Mar;19(3):180-6. doi: 10.1016/j.annepidem.2008.12.008.
- Background: PubMed 28872346Kornides ML, Rimm EB, Chavarro JE, Gillman MW, Rosner B, Field AE. Seasonal Variations in Meeting Physical Activity Recommendations and Development of Overweight during Adolescence. Child Obes. 2018 Jan;14(1):33-40. doi: 10.1089/chi.2017.0118. Epub 2017 Sep 5.
- Background: PubMed 17920646Tucker P, Gilliland J. The effect of season and weather on physical activity: a systematic review. Public Health. 2007 Dec;121(12):909-22. doi: 10.1016/j.puhe.2007.04.009. Epub 2007 Oct 24.
- Background: PubMed 17020083Rowlands AV, Hughes DR. Variability of physical activity patterns by type of day and season in 8-10-year-old boys. Res Q Exerc Sport. 2006 Sep;77(3):391-5. doi: 10.1080/02701367.2006.10599373. No abstract available.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Günay Yıldızer, Ph.D. principal investigator
Eskiehir Technical University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Physical Activity Intervention Based on Theory of Planned Behavior in people with Sedentary Lifestyle and Sedentary Behavior, run by Eskisehir Technical University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 18 May 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Affection for Physical Activity (time frame: 4 months). The study lists 14 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06196645, which also lists 5 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 May 2025.