YPAP ModelNCT07511738
Testing the Youth Physical Activity Promotion Model (YPAP) in Brazilian Adolescents
An observational study of YPAP Model, run by Hospital Universitario Pedro Ernesto at 1 site in Brazil.
Trial summary
This cross-sectional observational study aims to test the original conceptual diagram of the Youth Physical Activity Promotion Model (YPAP) in Brazilian adolescents. The study evaluates the relationships among predisposing, enabling, and reinforcing correlates described in the YPAP framework and investigates how these… Read more about this study
- Who is it for?
- Ages 10 to 13 yearsHealthy volunteers can take part
- Conditions the study is for
- YPAP Model
- How many people
- 93 participants
- Where
- 1 siteBrazil
- Study dates
- 6 Apr 2026to 30 Dec 2026
- How long will I take part?
- 2 Days
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
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 10 to 13 years
- All sexes
- Healthy volunteers accepted
- Child
Study population: Brazilian adolescents aged 10 to 13 years, recruited through broad public dissemination as part of a larger intervention project.
Who may be able to join
- age 10-13 years;
- medical clearance for physical activity.
Who cannot join
- presence of any clinical diagnosis that may interfere the performance of assessments (including musculoskeletal, neurological, vascular, pulmonary, or cardiac disorders).
Trial locations and contacts
1 site in 1 country.
Brazil1 site
State University Of Rio de Janeiro
Rio de Janeiro, Rio de Janeiro, 27.537-000
About this study
Official title: Testing the Conceptual Diagram of the Youth Physical Activity Promotion Model (YPAP) Using Cross-sectional Data From Brazilian Adolescents
This cross-sectional observational study aims to test the original conceptual diagram of the Youth Physical Activity Promotion Model (YPAP) in Brazilian adolescents. The study evaluates the relationships among predisposing, enabling, and reinforcing correlates described in the YPAP framework and investigates how these correlates interact with one another according to the pathways proposed by the model. A convenience sample of adolescents aged 10 to 13 years will be recruited through broad public dissemination as part of a larger experimental intervention project. Data will be collected at a single time point. Instead of traditional linear analytical strategies, the study will adopt complex, flexible, and non-linear methods such as network analysis to examine how correlates interconnect and influence physical activity behavior. Secondary analyses will explore whether the structure and strength of associations differ across demographic subgroups such as sex and socioeconomic level.
Read the detailed description
The Youth Physical Activity Promotion Model (YPAP) conceptualizes physical activity behavior in youth as influenced by interacting correlates organized within predisposing, enabling, and reinforcing domains. These domains interact dynamically and collectively shape physical activity, forming a structured diagram originally proposed by Welk and colleagues. This study aims to test this conceptual diagram using data from Brazilian adolescents aged 10-13 years. The objective is to evaluate whether the empirical relationships among correlates follow the directional pathways and interactions proposed by the original YPAP model. This study will analyze baseline data collected as part of a broader experimental intervention, although no intervention or exposure occurs for the purpose of this cross-sectional analysis. Recruitment will occur through broad public dissemination linked to the host project and community outreach strategies. Given the complexity of the model and the expected multilevel interdependencies among correlates, the analysis strategy will rely on flexible, non-linear methods-most prominently network analysis-to explore how variables cluster, how correlates influence one another, and how these structures relate to normative patterns expected from the original YPAP framework. Secondary aims include testing whether observed associations vary by key demographic moderators described in the model (sex, socioeconomic level).
- Conditions
- YPAP Model
- Keywords
- adolescents, physical activity, correlates, YPAP model
- Medical subject headings
- Motor Activity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| 1 - Brazilian Adolescents (10-13 years) | All participants complete the same assessments in two days at a single time point. No arms or exposure groups, as this is an observational study. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Accelerometer-Measured Physical Activity (MVPA)
Minutes per day spent in sedentary, light, moderate, and vigorous intensity, measured using ActiGraph GT3X accelerometers and classified according to Evenson cut-points.
Measured: Baseline (single assessment)
Total Body Mass
Total body mass will be measured using a digital electronic scale Filizola (model ID 1500; capacity: 150 kg; accuracy: 100 g). Measurements will be recorded in kilograms (kg).
Measured: Baseline (single assessment)
Standing and Sitting Height
Standing height will be measured using a vertical stadiometer Sanny (model ES2020; millimetric scale; range up to 2.20 m), with the participant standing barefoot in the orthostatic position and the head aligned in the Frankfurt plane. Values will be recorded in centimeters (cm).
Measured: Baseline (single assessment)
Body Mass Index (BMI)
Body Mass Index (BMI) will be calculated using measured total body mass and standing height, following World Health Organization (WHO) criteria (2007). Participants will be classified according to age- and sex-specific BMI nutritional status categories. Values will be expressed in kg/m².
Measured: Baseline (single assessment)
Waist Circumference
Waist circumference will be measured using a metal measuring tape. Values will be recorded in centimeters (cm).
Measured: Baseline (single assessment)
Waist-to-Height Ratio (WHtR)
The waist-to-height ratio will be calculated using measured waist circumference and standing height.
Measured: Baseline (single assessment)
Body Fat Percentage
Body fat percentage will be assessed by Dual-Energy X-ray Absorptiometry (DXA) using a Lunar scanner from GE Healthcare. The device will be calibrated according to manufacturer guidelines. Participants will remain in the supine position, motionless, with upper and lower limbs aligned. Scans will be performed in high resolution and analyzed by the same trained technician.
Measured: Baseline (single assessment)
Cardiorespiratory Fitness (Yo-Yo IR1C)
Cardiorespiratory fitness will be assessed using the Yo-Yo Intermittent Recovery Test Level 1 adapted for children (YoYo IR1C). The protocol consists of repeated 16-meter shuttle runs interspersed with a 4-meter active recovery zone and 10-second rest periods. Running pace is controlled by audio cues from a dedicated application, with progressive speed increments until voluntary exhaustion. Maximum heart rate (HRmax) will be recorded using a heart rate sensor Polar Electro (model H10). Test termination will occur when the participant fails to reach the designated line twice consecutively or demonstrates significant fatigue. Results will be used to estimate maximal oxygen uptake (VO2max) and HRmax.
Measured: Baseline (single assessment)
Motor Competence (KTK)
Motor competence will be assessed using the Körperkoordinationstest für Kinder (KTK), developed by Klaus Kiphard and Friedhelm Schilling. The battery consists of four subtests evaluating distinct components of motor coordination:
(1) dynamic balance through walking on beams of different widths; (2) speed and rhythm through two-foot lateral jumps performed for 15 seconds; (3) strength and motor control through single-leg jumps over progressively higher foam obstacles; and (4) lateral agility using two moving platforms over a fixed 20-second interval. Raw scores from each subtest will be converted into age- and sex-adjusted standardized scores and summed to generate a global motor index. All assessments will be conducted by trained evaluators to ensure procedural standardization and data reliability.
Measured: Baseline (single assessment)
Cognitive Function (Tower of Hanoi)
Cognitive function will be assessed using the three-disk Tower of Hanoi task. The test consists of a base with three pegs and three disks of different sizes and colors, initially stacked on the left peg with the smallest disk on top.
Participants must transfer the entire tower to the right peg while following two rules: only one disk may be moved at a time, and a larger disk may not be placed on top of a smaller one. The entire procedure will be video recorded to allow quantification of the total number of moves and the total time required to complete the task.
Measured: Baseline (single assessment)
Perceived Health Status
Perceived health status will be assessed through a single question using a 5-point Likert scale. Adolescents will classify their health as: (1) poor, (2) fair, (3) good, (4) very good, or (5) excellent. Higher scores indicate better perceived health.
Measured: Baseline (single assessment)
Motivation for Physical Activity (BREQ-2)
Motivation for physical activity will be assessed using the Behavioral Regulation in Exercise Questionnaire (BREQ-2), adapted for Portuguese. The questionnaire consists of items distributed across subscales evaluating amotivation, external regulation, introjected regulation, identified regulation, integrated regulation, and intrinsic motivation. Participants will respond on a 5-point Likert scale ranging from "Not true for me" to "Very true for me." Scores will be calculated for each regulatory style to characterize participants' motivational profile toward physical activity.
Measured: Baseline (single assessment)
Self-Perception and Motor Competence (EAPH-A)
Self-perception will be assessed using the Escala de Autopercepção de Harter para Adolescentes (EAPH-A), the Brazilian adaptation of the Self-Perception Profile for Adolescents (SPPA). The instrument comprises five specific domains of self-perception-school competence, social competence, athletic competence, physical appearance, and behavioral conduct-along with a global self-esteem score. The scale uses a structured alternative-response format with four response levels, in which participants first choose which of two hypothetical descriptions best resembles them and then indicate whether the statement is "very true for me" or "somewhat true for me." This response structure reduces social desirability bias and enhances self-reflection.
Measured: Baseline (single assessment)
Social Support for Physical Activity
Social support for physical activity will be assessed using a 12-item scale that captures different forms of support provided by parents and friends. Considering a typical week, adolescents will report the frequency (never, rarely, often, always) with which parents and friends encourage them, practice together, watch, comment, discuss, invite them to be active, or provide/arrange transportation to physical activity locations. Higher scores reflect greater perceived social support for engaging in physical activity.
Measured: Baseline (single assessment)
Perceived Environment for Physical Activity
Perception of the environment for physical activity will be assessed using a scale composed of three domains. An overall score will be created by summing the items within each domain. Scores will then be divided into tertiles, with higher tertiles indicating more favorable perceptions of the environment for engaging in physical activity.
Measured: Baseline (single assessment)
Attitude Toward Physical Activity
Attitude toward physical activity will be assessed using a five-item semantic differential scale. Two items evaluate affective/emotional aspects and three evaluate instrumental aspects. Participants will rate bipolar adjective pairs (safe-unsafe, fun-boring, important-unimportant, healthy-harmful, good-bad) on a 4-point scale. Higher scores indicate a more positive attitude toward physical activity
Measured: Baseline (single assessment)
Self-Efficacy for Physical Activity
Self-efficacy for physical activity will be measured using a 12-item scale assessing confidence to engage in physical activity when facing commonly reported barriers. Items are rated on a 4-point Likert scale ranging from 1 ("strongly disagree") to 4 ("strongly agree"). Higher scores indicate greater self-efficacy to be physically active.
Measured: Baseline (single assessment)
Secondary outcomes (2)
Stratified network structure by sex
Examination of whether networks of YPAP correlates differ between boys and girls.
Measured: Baseline
Stratified network structure by socioeconomic level
Analysis of networks across socioeconomic categories to determine whether demographic moderators influence YPAP pathways. Socioeconomic status will be classified using the Critério Brasil, developed by the Associação Brasileira de Empresas de Pesquisa (ABEP). The instrument assesses household assets, access to services, and the educational level of the head of household, categorizing participants into economic strata ranging from A to E.
Measured: Baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Apr 2026
- Study start6 Apr 2026
- Primary completion20 Jul 2026
- Study completion30 Dec 2026 (estimated)
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 YPAP ModelStudies 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
- Observational
- Observational model
- Other
- Time perspective
- Cross-sectional
- Enrolment
- 93 participants (estimated)
- Target duration
- 2 Days
Sponsor and investigators
- Lead sponsor
- Hospital Universitario Pedro Ernesto
- Sponsor type
- University, hospital or other
- Collaborators
- Rio de Janeiro State Research Supporting Foundation (FAPERJ)
- Responsible party
- Principal investigator, Isabela Freire Soares, Hospital Universitario Pedro Ernesto
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07511738
- Sponsor's protocol ID
- YPAP Bra Adolescents
- Status last verified
- Apr 2026
- First submitted
- 30 Mar 2026
- Last updated
- 3 Nov 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Individual participant data will not be shared due to ethical restrictions related to research involving minors.
Publications
Jiang C, Razak NA, Rasyid NM, Cheng H. Investigating the youth physical activity promotion model among Chinese middle school students. BMC Public Health. 2025 May 19;25(1):1843. doi: 10.1186/s12889-025-23046-y.
PubMed 40389903Belanger M, Giroux MA, Registe PPW, Gallant F, Jemaa S, Faivre P, Saucier D, Mekari S. Adolescent physical activity profiles as determinants of emerging adults' physical activity. Int J Behav Nutr Phys Act. 2025 Mar 25;22(1):35. doi: 10.1186/s12966-025-01732-9.
PubMed 40134004Evenson KR, Catellier DJ, Gill K, Ondrak KS, McMurray RG. Calibration of two objective measures of physical activity for children. J Sports Sci. 2008 Dec;26(14):1557-65. doi: 10.1080/02640410802334196.
PubMed 18949660Vasconcellos F, Seabra A, Cunha F, Montenegro R, Penha J, Bouskela E, Nogueira Neto JF, Collett-Solberg P, Farinatti P. Health markers in obese adolescents improved by a 12-week recreational soccer program: a randomised controlled trial. J Sports Sci. 2016;34(6):564-75. doi: 10.1080/02640414.2015.1064150. Epub 2015 Jul 24.
PubMed 26208409Zhao C, Yuan J, Huang WW. Multilevel determinants of physical activity in children and adolescents: a meta-analysis guided by social ecological model. BMC Sports Sci Med Rehabil. 2025 Jul 15;17(1):202. doi: 10.1186/s13102-025-01225-z.
PubMed 40665401
Study at a glance
From the registry record, last updated by the sponsor on 3 Nov 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Testing the Conceptual Diagram of the Youth Physical Activity Promotion Model (YPAP) Using Cross-sectional Data From Brazilian Adolescents
- ClinicalTrials.gov ID
- NCT07511738
- Acronym / sponsor ID
- YPAP Bra Adolescents
- Conditions
- YPAP Model
- Keywords
- adolescents, physical activity, correlates, YPAP model
- Study type
- Observational
- Recruitment status
- Active, not recruiting
- Enrolment
- 93 participants (estimated)
- Lead sponsor
- Hospital Universitario Pedro ErnestoUniversity, hospital or other
- Collaborators
- Rio de Janeiro State Research Supporting Foundation (FAPERJ)
- Study start
- 6 Apr 2026 (actual)
- Primary completion
- 20 Jul 2026 (actual)
- Study completion
- 30 Dec 2026 (estimated)
- First posted
- 6 Apr 2026 (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.
This cross-sectional observational study aims to test the original conceptual diagram of the Youth Physical Activity Promotion Model (YPAP) in Brazilian adolescents. The study evaluates the relationships among predisposing, enabling, and reinforcing correlates described in the YPAP framework and investigates how these correlates interact with one another according to the pathways proposed by the model. A convenience sample of adolescents aged 10 to 13 years will be recruited through broad public dissemination as part of a larger experimental intervention project. Data will be collected at a single time point. Instead of traditional linear analytical strategies, the study will adopt complex, flexible, and non-linear methods such as network analysis to examine how correlates interconnect and influence physical activity behavior. Secondary analyses will explore whether the structure and strength of associations differ across demographic subgroups such as sex and socioeconomic level.
Detailed description
The Youth Physical Activity Promotion Model (YPAP) conceptualizes physical activity behavior in youth as influenced by interacting correlates organized within predisposing, enabling, and reinforcing domains. These domains interact dynamically and collectively shape physical activity, forming a structured diagram originally proposed by Welk and colleagues. This study aims to test this conceptual diagram using data from Brazilian adolescents aged 10-13 years. The objective is to evaluate whether the empirical relationships among correlates follow the directional pathways and interactions proposed by the original YPAP model. This study will analyze baseline data collected as part of a broader experimental intervention, although no intervention or exposure occurs for the purpose of this cross-sectional analysis. Recruitment will occur through broad public dissemination linked to the host project and community outreach strategies. Given the complexity of the model and the expected multilevel interdependencies among correlates, the analysis strategy will rely on flexible, non-linear methods-most prominently network analysis-to explore how variables cluster, how correlates influence one another, and how these structures relate to normative patterns expected from the original YPAP framework. Secondary aims include testing whether observed associations vary by key demographic moderators described in the model (sex, socioeconomic level).
Study design
- Observational model
- Other
- Time perspective
- Cross-sectional
- Target follow-up
- 2 Days
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| 1 - Brazilian Adolescents (10-13 years) | – | –All participants complete the same assessments in two days at a single time point. No arms or exposure groups, as this is an observational study. |
Who may qualify
- Ages
- 10 to 13 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
- Study population
- Brazilian adolescents aged 10 to 13 years, recruited through broad public dissemination as part of a larger intervention project.
Key inclusion criteria (2 listed)
- age 10-13 years;
- medical clearance for physical activity.
Key exclusion criteria (1 listed)
- presence of any clinical diagnosis that may interfere the performance of assessments (including musculoskeletal, neurological, vascular, pulmonary, or cardiac disorders).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Accelerometer-Measured Physical Activity (MVPA)
Time frame: Baseline (single assessment)
Minutes per day spent in sedentary, light, moderate, and vigorous intensity, measured using ActiGraph GT3X accelerometers and classified according to Evenson cut-points.
Total Body Mass
Time frame: Baseline (single assessment)
Total body mass will be measured using a digital electronic scale Filizola (model ID 1500; capacity: 150 kg; accuracy: 100 g). Measurements will be recorded in kilograms (kg).
Standing and Sitting Height
Time frame: Baseline (single assessment)
Standing height will be measured using a vertical stadiometer Sanny (model ES2020; millimetric scale; range up to 2.20 m), with the participant standing barefoot in the orthostatic position and the head aligned in the Frankfurt plane. Values will be recorded in centimeters (cm).
Body Mass Index (BMI)
Time frame: Baseline (single assessment)
Body Mass Index (BMI) will be calculated using measured total body mass and standing height, following World Health Organization (WHO) criteria (2007). Participants will be classified according to age- and sex-specific BMI nutritional status categories. Values will be expressed in kg/m².
Waist Circumference
Time frame: Baseline (single assessment)
Waist circumference will be measured using a metal measuring tape. Values will be recorded in centimeters (cm).
Waist-to-Height Ratio (WHtR)
Time frame: Baseline (single assessment)
The waist-to-height ratio will be calculated using measured waist circumference and standing height.
Body Fat Percentage
Time frame: Baseline (single assessment)
Body fat percentage will be assessed by Dual-Energy X-ray Absorptiometry (DXA) using a Lunar scanner from GE Healthcare. The device will be calibrated according to manufacturer guidelines. Participants will remain in the supine position, motionless, with upper and lower limbs aligned. Scans will be performed in high resolution and analyzed by the same trained technician.
Cardiorespiratory Fitness (Yo-Yo IR1C)
Time frame: Baseline (single assessment)
Cardiorespiratory fitness will be assessed using the Yo-Yo Intermittent Recovery Test Level 1 adapted for children (YoYo IR1C). The protocol consists of repeated 16-meter shuttle runs interspersed with a 4-meter active recovery zone and 10-second rest periods. Running pace is controlled by audio cues from a dedicated application, with progressive speed increments until voluntary exhaustion. Maximum heart rate (HRmax) will be recorded using a heart rate sensor Polar Electro (model H10). Test termination will occur when the participant fails to reach the designated line twice consecutively or demonstrates significant fatigue. Results will be used to estimate maximal oxygen uptake (VO2max) and HRmax.
Motor Competence (KTK)
Time frame: Baseline (single assessment)
Motor competence will be assessed using the Körperkoordinationstest für Kinder (KTK), developed by Klaus Kiphard and Friedhelm Schilling. The battery consists of four subtests evaluating distinct components of motor coordination: (1) dynamic balance through walking on beams of different widths; (2) speed and rhythm through two-foot lateral jumps performed for 15 seconds; (3) strength and motor control through single-leg jumps over progressively higher foam obstacles; and (4) lateral agility using two moving platforms over a fixed 20-second interval. Raw scores from each subtest will be converted into age- and sex-adjusted standardized scores and summed to generate a global motor index. All assessments will be conducted by trained evaluators to ensure procedural standardization and data reliability.
Cognitive Function (Tower of Hanoi)
Time frame: Baseline (single assessment)
Cognitive function will be assessed using the three-disk Tower of Hanoi task. The test consists of a base with three pegs and three disks of different sizes and colors, initially stacked on the left peg with the smallest disk on top. Participants must transfer the entire tower to the right peg while following two rules: only one disk may be moved at a time, and a larger disk may not be placed on top of a smaller one. The entire procedure will be video recorded to allow quantification of the total number of moves and the total time required to complete the task.
Perceived Health Status
Time frame: Baseline (single assessment)
Perceived health status will be assessed through a single question using a 5-point Likert scale. Adolescents will classify their health as: (1) poor, (2) fair, (3) good, (4) very good, or (5) excellent. Higher scores indicate better perceived health.
Motivation for Physical Activity (BREQ-2)
Time frame: Baseline (single assessment)
Motivation for physical activity will be assessed using the Behavioral Regulation in Exercise Questionnaire (BREQ-2), adapted for Portuguese. The questionnaire consists of items distributed across subscales evaluating amotivation, external regulation, introjected regulation, identified regulation, integrated regulation, and intrinsic motivation. Participants will respond on a 5-point Likert scale ranging from "Not true for me" to "Very true for me." Scores will be calculated for each regulatory style to characterize participants' motivational profile toward physical activity.
Self-Perception and Motor Competence (EAPH-A)
Time frame: Baseline (single assessment)
Self-perception will be assessed using the Escala de Autopercepção de Harter para Adolescentes (EAPH-A), the Brazilian adaptation of the Self-Perception Profile for Adolescents (SPPA). The instrument comprises five specific domains of self-perception-school competence, social competence, athletic competence, physical appearance, and behavioral conduct-along with a global self-esteem score. The scale uses a structured alternative-response format with four response levels, in which participants first choose which of two hypothetical descriptions best resembles them and then indicate whether the statement is "very true for me" or "somewhat true for me." This response structure reduces social desirability bias and enhances self-reflection.
Social Support for Physical Activity
Time frame: Baseline (single assessment)
Social support for physical activity will be assessed using a 12-item scale that captures different forms of support provided by parents and friends. Considering a typical week, adolescents will report the frequency (never, rarely, often, always) with which parents and friends encourage them, practice together, watch, comment, discuss, invite them to be active, or provide/arrange transportation to physical activity locations. Higher scores reflect greater perceived social support for engaging in physical activity.
Perceived Environment for Physical Activity
Time frame: Baseline (single assessment)
Perception of the environment for physical activity will be assessed using a scale composed of three domains. An overall score will be created by summing the items within each domain. Scores will then be divided into tertiles, with higher tertiles indicating more favorable perceptions of the environment for engaging in physical activity.
Attitude Toward Physical Activity
Time frame: Baseline (single assessment)
Attitude toward physical activity will be assessed using a five-item semantic differential scale. Two items evaluate affective/emotional aspects and three evaluate instrumental aspects. Participants will rate bipolar adjective pairs (safe-unsafe, fun-boring, important-unimportant, healthy-harmful, good-bad) on a 4-point scale. Higher scores indicate a more positive attitude toward physical activity
Self-Efficacy for Physical Activity
Time frame: Baseline (single assessment)
Self-efficacy for physical activity will be measured using a 12-item scale assessing confidence to engage in physical activity when facing commonly reported barriers. Items are rated on a 4-point Likert scale ranging from 1 ("strongly disagree") to 4 ("strongly agree"). Higher scores indicate greater self-efficacy to be physically active.
2 secondary outcomes
Stratified network structure by sex
Time frame: Baseline
Stratified network structure by socioeconomic level
Time frame: Baseline
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Nov 2026.
- Background: PubMed 40389903Jiang C, Razak NA, Rasyid NM, Cheng H. Investigating the youth physical activity promotion model among Chinese middle school students. BMC Public Health. 2025 May 19;25(1):1843. doi: 10.1186/s12889-025-23046-y.
- Background: PubMed 40134004Belanger M, Giroux MA, Registe PPW, Gallant F, Jemaa S, Faivre P, Saucier D, Mekari S. Adolescent physical activity profiles as determinants of emerging adults' physical activity. Int J Behav Nutr Phys Act. 2025 Mar 25;22(1):35. doi: 10.1186/s12966-025-01732-9.
- Background: PubMed 18949660Evenson KR, Catellier DJ, Gill K, Ondrak KS, McMurray RG. Calibration of two objective measures of physical activity for children. J Sports Sci. 2008 Dec;26(14):1557-65. doi: 10.1080/02640410802334196.
- Background: PubMed 26208409Vasconcellos F, Seabra A, Cunha F, Montenegro R, Penha J, Bouskela E, Nogueira Neto JF, Collett-Solberg P, Farinatti P. Health markers in obese adolescents improved by a 12-week recreational soccer program: a randomised controlled trial. J Sports Sci. 2016;34(6):564-75. doi: 10.1080/02640414.2015.1064150. Epub 2015 Jul 24.
- Background: PubMed 40665401Zhao C, Yuan J, Huang WW. Multilevel determinants of physical activity in children and adolescents: a meta-analysis guided by social ecological model. BMC Sports Sci Med Rehabil. 2025 Jul 15;17(1):202. doi: 10.1186/s13102-025-01225-z.
- Individual participant dataSharing planned: No. Individual participant data will not be shared due to ethical restrictions related to research involving minors.
Related trials for YPAP Model
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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.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of YPAP Model, run by Hospital Universitario Pedro Ernesto at 1 site in Brazil.
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 2 inclusion and 1 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: under way, not looking for participants, as of the sponsor's last update on 3 Nov 2026. 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 Brazil. 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?
This study is still under way. Results are not available in the source record yet.
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?
Accelerometer-Measured Physical Activity (MVPA) (time frame: Baseline (single assessment)). The study lists 17 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 NCT07511738, 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 3 Nov 2026.