his study aims to investigate whether Osteopathic Manipulative Treatment (OMT) affects cerebrospinal fluid (CSF) flow and glymphatic clearance in the human brain. CSF plays an important role in brain health by supporting nutrient delivery, waste removal, and pressure regulation. Aging and certain neurological conditions are associated with reduced CSF circulation and impaired brain waste clearance.
Participants will undergo magnetic resonance imaging (MRI) scans before and after a 30-minute OMT session to evaluate changes in CSF flow dynamics and brain physiology. The study will also examine whether age, cognition, sleep quality, physical function, anxiety, and depression are associated with changes in CSF flow following OMT.
The study will enroll healthy adults between 18 and 80 years of age. Data collected from MRI imaging and questionnaires may help improve understanding of the physiological effects of OMT and its potential role in supporting brain health
Healthy adults between 18 and 80 years of age
Able and willing to provide informed consent
Able to safely undergo MRI procedures
Able to participate in osteopathic manipulative treatment (OMT)
History of severe traumatic brain injury
Fibromyalgia
Epilepsy
Severe neurodegenerative disorders
Single group
Osteopathic Manipulative Treatment (OMT)
Other interventionThis intervention consists of a single 30-minute osteopathic manipulative treatment (OMT) session administered by a licensed osteopathic physician trained in neuromusculoskeletal and osteopathic manipulative medicine. Treatment will be individualized based on findings from an osteopathic structural examination assessing somatic dysfunctions involving the head, spine, pelvis, extremities, and myofascial structures. Standardized OMT techniques may include osteopathic cranial manipulative medicine (OCMM), indirect method (IM), articulatory technique (ART), muscle energy technique (MET), facilitated positional release (FPR), tender point high-velocity low-amplitude (TP-HVLA), and myofascial release (MFR). The intervention is performed between pre- and post-treatment MRI sessions to evaluate acute changes in cerebrospinal fluid (CSF) dynamics and glymphatic-related imaging biomarkers.
Change in Cerebrospinal Fluid (CSF) Velocity Following OMT
CSF aqueductal peak and average velocity measured using phase contrast MRI before and after osteopathic manipulative treatment (OMT).
Change in Cerebrospinal Fluid (CSF) Flow Volume Dynamics Following OMT
CSF forward and reverse flow volumes, net forward flow, and stroke volume measured using phase contrast MRI before and after osteopathic manipulative treatment (OMT).
Changes in the Diffusion Tensor Imaging Analysis along the Perivascular Space (DTI-ALPS) index
An MRI diffusion tensor imaging-based physiological measure of perivascular water diffusivity, measured before and after OMT. The DTI-ALPS assessment quantifies directional water diffusivity within white matter tracts to evaluate fluid movement along perivascular spaces.
Correlation Between MRI-Derived CSF Flow, Velocity, and DTI-ALPS Metrics and Cognitive Function Outcomes Using the Patient-Reported Outcomes Measurement Information System (PROMIS) Cognitive Function Short Form and PROMIS Cognitive Abilities Short Form
Association between changes in cerebrospinal fluid (CSF) flow and velocity metrics measured using magnetic resonance imaging (MRI) and changes in the Diffusion Tensor Imaging Analysis along the Perivascular Space (DTI-ALPS) index measured using diffusion tensor imaging (DTI) (units: quantitative CSF flow parameters, CSF velocity measures, and ALPS index ratio) and participant-reported cognitive function measured using the Patient-Reported Outcomes Measurement Information System (PROMIS) Cognitive Function Short Form and PROMIS Cognitive Abilities Short Form (unit: PROMIS T-scores; range typically 0-100, standardized mean = 50, SD = 10; higher scores indicate better cognitive function and cognitive abilities).
Correlation Between MRI-Derived CSF Flow, Velocity, and DTI-ALPS Metrics and Physical Function Outcomes using the PROMIS Physical Function Short Form
Correlation between changes in cerebrospinal fluid (CSF) flow and velocity metrics measured using magnetic resonance imaging (MRI) and changes in the Diffusion Tensor Imaging Analysis along the Perivascular Space (DTI-ALPS) index measured using diffusion tensor imaging (DTI) (units: quantitative CSF flow parameters, CSF velocity measures, and ALPS index ratio) and participant-reported physical function measured using the Patient-Reported Outcomes Measurement Information System (PROMIS) Physical Function Short Form (unit: PROMIS T-scores; range typically 0-100, standardized mean = 50, SD = 10; higher scores indicate better physical function).
Correlation Between MRI-Derived CSF Flow, Velocity, and DTI-ALPS Metrics and Sleep Quality Outcomes Patient-Reported Outcomes Measurement Information System (PROMIS) Sleep Disturbance Short Form and PROMIS Sleep-Related Impairment Short Form
Correlation between changes in cerebrospinal fluid (CSF) flow and velocity metrics measured using magnetic resonance imaging (MRI) and changes in the Diffusion Tensor Imaging Analysis along the Perivascular Space (DTI-ALPS) index measured using diffusion tensor imaging (DTI) (units: quantitative CSF flow parameters, CSF velocity measures, and ALPS index ratio) and participant-reported sleep disturbance and sleep-related impairment measured using the Patient-Reported Outcomes Measurement Information System (PROMIS) Sleep Disturbance Short Form and PROMIS Sleep-Related Impairment Short Form (unit: PROMIS T-scores; range typically 0-100, standardized mean = 50, SD = 10; higher scores indicate worse sleep disturbance and greater sleep-related impairment).
Correlation Between MRI-Derived CSF Flow, Velocity, and DTI-ALPS Metrics and Anxiety Symptoms using the General Anxiety Disorder-7 (GAD-7) questionnaire.
Correlation between changes in cerebrospinal fluid (CSF) flow and velocity metrics measured using magnetic resonance imaging (MRI) and changes in the Diffusion Tensor Imaging Analysis along the Perivascular Space (DTI-ALPS) index measured using diffusion tensor imaging (DTI) (units: quantitative CSF flow parameters, CSF velocity measures, and ALPS index ratio) and participant-reported anxiety symptoms measured using the Generalized Anxiety Disorder-7 (GAD-7) questionnaire (unit: GAD-7 total score; range 0-21, with higher scores indicating worse anxiety symptoms).
Correlation Between MRI-Derived CSF Flow, Velocity, and DTI-ALPS Metrics and Depressive Symptoms using the Patient Health Questionnaire-8 (PHQ-8).
Association between changes in cerebrospinal fluid (CSF) flow and velocity metrics measured using magnetic resonance imaging (MRI) and changes in the Diffusion Tensor Imaging Analysis along the Perivascular Space (DTI-ALPS) index measured using diffusion tensor imaging (DTI) (units: quantitative CSF flow parameters, CSF velocity measures, and ALPS index ratio) and participant-reported depressive symptoms measured using the Patient Health Questionnaire-8 (PHQ-8) (unit: PHQ-8 total score; range 0-24, with higher scores indicating worse depressive symptoms).
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Edward Via Virginia College of Osteopathic Medicine
Lead sponsor
Auburn University MRI Research Center
Collaborator
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