NCT07435935

Bone Myoregulation Reflex and Postural Control in Vitamin D Deficiency

Investigation of Postural Stability and Load-Sensitive Neuromuscular Control Mechanisms in Vitamin D Deficiency

• Status: Not Yet Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 24 (estimated)
• Sponsor: Istanbul Physical Medicine Rehabilitation Training and Research Hospital · Other Government
• Sex: All
• Age: 20 Years – 40 Years
• Healthy volunteers: Accepted

Summary

This observational study aims to investigate the relationship between vitamin D deficiency, postural stability, and neuromuscular control mechanisms in adults. The study will compare individuals with vitamin D deficiency and healthy controls. Participants will undergo a single-session evaluation including surface electromyography and postural stability assessments during standing tasks under different loading and vibration conditions. No invasive procedures, medications, or blood sampling will be performed. Previously obtained routine laboratory results will be used for vitamin D status. The study is designed to improve understanding of neuromuscular responses associated with vitamin D deficiency and to contribute to future rehabilitation strategies.

Detailed description

This single-center observational study is designed to evaluate postural stability and load-sensitive neuromuscular control mechanisms in adults with vitamin D deficiency. Participants will be divided into two groups based on their vitamin D status: individuals with vitamin D deficiency and healthy controls. Vitamin D levels will be determined using previously obtained routine laboratory test results. No additional blood sampling will be performed for this study. All participants will undergo a standardized assessment protocol in a single session. Surface electromyography will be used to record muscle activity during standing tasks under different postural and loading conditions. Measurements will be performed during single-leg and double-leg stance, with and without vibration stimulation. The procedures are non-invasive and do not involve any pharmacological intervention. Postural stability parameters and neuromuscular response variables will be analyzed and compared between groups. The primary objective is to identify potential differences in reflex modulation and postural control associated with vitamin D deficiency. The study aims to provide objective data on neuromuscular adaptations related to vitamin D status and to support future research in rehabilitation and balance training.

Conditions

• Vitamin D Deficiency

Timeline

• Start date: 2026-03-05
• Primary completion: 2026-06-05
• Completion: 2026-07-05
• First posted: 2026-02-27
• Last updated: 2026-02-27

Locations

1 site across 1 country: Turkey (Türkiye)