Clinical trials

6

Search and review clinical trials. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Not yet recruiting

Cognitive Responses to Acute Breath-Hold Diving Training in Female Divers

This study aims to investigate the acute cognitive and physiological responses to breath-hold diving training in trained female divers. Participants will complete three separate sessions including a control session, a land-based breath-hold training session, and a water-based breath-hold training session in randomized order. Cognitive performance, mood state, heart rate responses, respiratory function, and maximal breath-hold capacity will be evaluated before and after the interventions. The study is expected to improve understanding of how acute apnea-based diving exercises influence cognitive functions and physiological adaptations under different environmental conditions.

Participants needed: 30
Trial details
Age: 18-30Biological sex: AllType: InterventionalSponsor: Istanbul Gelisim UniversityUpdated: Jun 1, 2026Locations: 1
Eligibility criteria

Licensed breath-hold or free-diving athletes [+6]

Use of performance-enhancing drugs or ergogenic aids [+5]

Status: Not yet recruiting

Buerger-Allen Exercises and Peripheral Circulation in Sedentary Office Workers

This study aims to evaluate the acute effects of Buerger-Allen exercises on lower extremity circulation in sedentary office workers. Prolonged sitting is associated with reduced venous return, impaired peripheral circulation, and endothelial dysfunction. Buerger-Allen exercises are simple position-based exercises designed to enhance arterial blood flow, venous return, and tissue perfusion. Thirty-five healthy sedentary adults aged 18 to 45 years will participate in this single-group pretest-posttest clinical trial. Skin surface temperature, capillary refill time, ankle-brachial index, peripheral oxygen saturation, and heart rate will be measured before and after a single 20-minute exercise session. The findings may support the use of Buerger-Allen exercises as a practical, low-cost physiotherapy strategy to improve peripheral circulation and reduce the adverse vascular effects of prolonged sitting.

Participants needed: 35
Trial details
Age: 18-45Biological sex: AllType: InterventionalSponsor: Istanbul Gelisim UniversityUpdated: May 15, 2026Locations: 1
Eligibility criteria

Healthy sedentary office workers [+4]

History of peripheral arterial disease, deep vein thrombosis, or other vascular... [+7]

Status: Not yet recruiting

Sustainable and AI-Enabled Adolescents and Youth-Centred Interventions to Upgrade Food Choices and Promote Healthy, Sustainable Diets

This study aims to evaluate the effectiveness of an artificial intelligence (AI)-supported, context-aware digital nudging intervention designed to reduce ultra-processed food consumption and improve dietary sustainability among adolescents and young adults. The intervention utilizes real-time behavioral data, including image-assisted dietary logging and contextual information, to identify high-risk consumption moments and deliver personalized, non-coercive nudges. The study will assess changes in ultra-processed food intake, contextual consumption patterns, and sustainability-related dietary indicators.

Participants needed: 1,000
Trial details
Age: 12-25Biological sex: AllType: InterventionalSponsor: Istanbul Gelisim UniversityUpdated: Apr 7, 2026
Eligibility criteria

Adolescents aged 12 to 25 years [+4]

Presence of medical conditions requiring a specific therapeutic diet [+3]

Status: Not yet recruiting

Motor Evoked Potential and Cortical Silent Period in Migraine

The primary objective of this study is to assess the level of inhibitory control in the motor cortex of migraine patients using objective and non-invasive methods. To this end, Motor Evoked Potential (MEP) and Cortical Silence Period (CSP) parameters obtained using Transcranial Magnetic Stimulation (TMS) will be measured and comparisons will be made between migraine patients and healthy controls. Since CSP duration is used specifically in the evaluation of GABA-B-mediated inhibitory mechanisms, it has the potential to directly measure the effect of migraine on cortical inhibition.

Participants needed: 20
Trial details
Age: 18-45Biological sex: AllType: InterventionalSponsor: Istanbul Gelisim UniversityUpdated: Nov 28, 2025Locations: 1
Eligibility criteria

Age 18-45 years. [+4]

History of epilepsy or other seizure disorders. [+5]

Status: Recruiting

The Effects of Smartphone Addiction on Pinch Strength, Muscle Stiffness, and Hand/Wrist Function in Young Adults

Smartphones have become an indispensable part of daily life, and their increasing use has raised concerns about various health effects, including musculoskeletal symptoms. Repetitive movements of the thumb and hand muscles can lead to issues such as tendinosis, myofascial pain syndrome, and a decrease in pinch strength. Studies have shown that musculoskeletal symptoms related to smartphone use are common among young adults and university students. Additionally, an increase in device size may place greater strain on the wrist and finger muscles. Repetitive movements can cause stiffness changes in the thumb muscles, and the relationship between these changes and pinch strength is considered an important research topic. In this study, we aimed to investigate the effects of smartphone addiction on pinch strength, muscle stiffness, hand/wrist pain, and function in young adults.

Participants needed: 134
Trial details
Age: 18-25Biological sex: AllType: ObservationalSponsor: Istanbul Gelisim UniversityUpdated: Apr 29, 2025Locations: 1
Eligibility criteria

Willing to participate in the study [+4]

Having radiating/radicular pain in the upper extremity [+5]

Status: Recruiting

Evaluation of the Efficacy of Cervical Core Exercises in Persons With Temporomandibular Joint Dysfunction

The aim is to reveal to what extent cervical core exercises affect the results of treatment in patients with Temporomandibular Joint Dysfunction caused by Myofascial pain syndrome. Randomization will be carried out by dividing individuals who agree to participate in the study into 3 groups of 20 people.Participants will be divided into three groups, and all three groups will receive treatment in 30-45 minute sessions a day, 2 days a week for 8 weeks.

Participants needed: 60
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Istanbul Gelisim UniversityUpdated: Nov 19, 2024Locations: 1
Eligibility criteria

Being diagnosed with Temporomandibular Disorder caused by Myofascial Pain Syndro... [+3]

Having a history of acute trauma in and around the Temporomandibular Joint [+5]