An observational study in Healthy Participants, sponsored by Istinye University. Completed at 1 site in Turkey (Türkiye). Open to participants aged 15 Years to 24 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-05-12.
Sponsored by Istinye University · Observational
Physical activity is a key determinant of physical and mental health among youth; however, participation levels are often influenced by various perceived barriers and facilitators. Understanding these perceptions, together with related psychosocial factors, will provide valuable insights for the development of targeted interventions. This study will aim to investigate perceived barriers and facilitators to physical activity among Turkish youth and to examine their associations with physical activity levels, perceived stress, and daytime sleepiness. This cross-sectional study will include individuals aged 15-24 years. Participants' sociodemographic characteristics will be recorded. Data will be collected using four validated questionnaires administered in a face-to-face setting. Perceived barriers and facilitators to physical activity will be assessed using the Barriers and Facilitators to Youth Physical Activity Questionnaire (BFYPA). Physical activity levels will be evaluated using the short form of the International Physical Activity Questionnaire (IPAQ-SF). Perceived stress levels will be measured using the Perceived Stress Scale (PSS), and daytime sleepiness will be assessed using the Epworth Sleepiness Scale (ESS). Appropriate statistical analyses will be performed to examine relationships between study variables.
9,798 studies on the registry are indexed under Motor Activity; 1,910 are open to participants now.
This study's enrollment of 318 is above the median of 98 across 1,235 observational studies indexed under Motor Activity.
Browse Motor Activity studies →Istinye University is the lead sponsor of 221 studies on the registry; 94 are open to participants now.
Compared within Motor Activity, the registry's first condition term, which may not be this study's main condition. Counted across the registry records on this site, refreshed daily. How we classify →
The Physiotherapy and Rehabilitation Application and Research Center of Istinye University
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The Barriers and Facilitators to Youth Physical Activity Questionnaire
The Barriers and Facilitators to Youth Physical Activity Questionnaire (BFYPA) will be used to assess perceived barriers and facilitators to physical activity among youth. The questionnaire will evaluate multiple dimensions of physical activity-related barriers and facilitators through standardized self-report items, with higher scores indicating greater perceived influence of barriers or facilitators.
Time frame: 1 day
International Physical Activity Questionnaire-Short Form (IPAQ-SF)
The International Physical Activity Questionnaire-Short Form (IPAQ-SF) will be used to assess participants' physical activity levels over the previous seven days. Physical activity will be quantified in metabolic equivalent task minutes per week (MET-min/week) based on the frequency and duration of walking, moderate-intensity, and vigorous-intensity activities.
Time frame: 1 day
Perceived Stress Scale (PSS)
The Perceived Stress Scale (PSS) will be used to evaluate the degree to which participants perceive situations in their daily lives as stressful. The scale will assess perceived stress levels through a standardized self-report format, with higher scores indicating greater perceived stress.
Time frame: 1 day
Epworth Sleepiness Scale (ESS)
The Epworth Sleepiness Scale (ESS) will be used to assess daytime sleepiness by evaluating the likelihood of dozing or falling asleep during common daily activities. Higher total scores will indicate greater levels of daytime sleepiness.
Time frame: 1 day
This study is completed, as verified in May 2026. You cannot join it, but the record below documents what was studied.
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