Development of a Planned Behavior Theory-Based Physical Activity Application for High School Adolescent Girls

NCT06196645 | Completed

• 1 other identifier: EskisehirTU-SBF-GY02
• Study Type: interventional
• Target: 77
• Locations: 1 country
• Sites: 1

Brief 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. Within the scope of this research, answers to the following research questions will be sought;

1. 1.Is there a difference in physical activity level between participants in the physical activity intervention plan groups and the control group?
2. 2.Is there a difference in terms of daily sedentary time between participants in the physical activity intervention plan groups and the control group?
3. 3.Is there a difference in beliefs about physical activity between participants in the physical activity intervention plan groups and the control group?

Conditions

Sedentary Lifestyle; Sedentary Behavior; Physical Activity Level

Keywords

Theory of planned behavior; physical activity intervention; adolescent girls

Outcome Measures

Primary Outcomes (14)

• 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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  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.

  4 months

Secondary Outcomes (7)

• Body Weight

  4 months

• Body Height

  4 months

• Activity Kilocalories

  4 months

• Total Sedentary Bout

  4 months

• Average kcals per hour

  4 months

Study Arms (2)

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.

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.

Interventions

Physical Activity Intervention Based on Theory of Planned Behavior BEHAVIORAL

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.

Intervention Group-1

Eligibility Criteria

• Age: 15 Years - 18 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• 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

You may not qualify if:

• 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.

Sponsors & Collaborators

• Eskisehir Technical University: lead
• The Scientific and Technological Research Council of Turkey: collaborator

Study Sites (1)

Eskişehir Technical University

Eskişehir, Tepebaşı, 26555, Turkey (Türkiye)

Location

Related Publications (5)

• 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.

  PMID: 28964852 BACKGROUND

• Belanger 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.

  PMID: 19217000 BACKGROUND

• Kornides 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.

  PMID: 28872346 BACKGROUND

• Tucker 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.

  PMID: 17920646 BACKGROUND

• Rowlands 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.

  PMID: 17020083 BACKGROUND

MeSH Terms

Conditions

Sedentary Behavior

Condition Hierarchy (Ancestors)

Behavior

Study Officials

• Günay Yıldızer, Ph.D.

  Eskiehir Technical University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: SUPPORTIVE CARE
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor

Study Record Dates

• First Submitted: December 26, 2023
• First Posted: January 9, 2024
• Study Start: February 10, 2024
• Primary Completion: June 15, 2024
• Study Completion: December 31, 2024
• Last Updated: May 18, 2025

Record last verified: 2025-05

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)