Effects of Additional Axial Load on Cervical Motor Control
- Conditions
- Healthy
- Interventions
- Other: axial load
- Registration Number
- NCT04434235
- Lead Sponsor
- Balgrist University Hospital
- Brief Summary
he objective of this study is to examine the influence of additional axial load abd body position on cervical motor control in young healthy adults.
- Detailed Description
Motor control of the cervical spine is impotent for responsible for maintaining balance during daily living activities and to withstand external loads. Stabilization-aspects of the cervical spine is very complex, passive (ligaments, joint capsule and the skin and active (muscles), and neurological subsystems are involved. Mostly proprioceptive testing and exercises like head and neck position sense testing and re-training have been an integral part of rehabilitation. Another method to evaluate spinal motor control is the assessment of spinal stiffness. The main objective of this study is to explore the effects of additional axial loading on motion control in healthy individuals. Does the motor control of the cervical spine in healthy subjects change with additional axial load or body position? A better understanding of spinal stiffness and neck position sense leads to novel insights into spinal cervical stabilization mechanisms.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- Male
- Target Recruitment
- 100
Healthy participant's Signed informed consent after being informed
Acute pain Chronic neck pain Undergone Neck surgery Neck Disability Index Score > 15
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description Dynamic cervical stability axial load The participant is asked to move the head in 6 directions in a sitting position and 30° leaning backward sitting position; lateral flexion (left / right), flexion, extension, and rotation (left / right). Results are to be taken for each direction and random at each axial load-level (0 kg, 1kg, 2 kg, and 3 kg). In total 24 measurements. The duration of all measurement will be 60 minutes. Cervical Stiffness axial load The participant is asked to move the head in 4 directions; flexion, extension, and rotation (left / right). Joint-Position Error measurements will be executed in neutral sitting position. Additionally, stiffness will be measured in neutral sitting position and neutral sitting position with 45° cervical flexion. All measurements will be performed with 0 kg and 3 kg axal loading. In total 18 measurements.The duration of all measurement will be 60 minutes.
- Primary Outcome Measures
Name Time Method Change of neck joint-position error between differnent weight conditions 20 minutes group cervical stiffness Joint-position error will be will be assessed with Sensomove. It consists of the 3D senscoordination sensor, an adjustable headband, and basic software for motion feedback of head movements. The change of Joint-Position Error with and without additional axial load will be assessed.
Change of neck joint-position error between two sitting positions 20 minutes group Dynamic cervical stability Joint-position error will be will be assessed with Sensomove It consists of the 3D senscoordination sensor, an adjustable headband, and basic software for motion feedback of head movements. The change of Joint-Position Error with axial load (3kg) between two sitting positions will be assessed.
Change of neck range of motion between different weight conditions 20 minutes group cervical stiffness Range of motion will be will be assessed with Sensomove It consists of the 3D senscoordination sensor, an adjustable headband, and basic software for motion feedback of head movements. The change of Rage of motion with and without additional axial load will be assessed.
Change of spinal stiffness between different sitting positions and loading conditions 20 minutes group cervical stiffness The device measures tissue compliance according to the concept of impulse-response. A force of exact 20 Newton will be applied from the device to the process spinous. The expected impulse-response (result) will be between 20 Newton and 40 Newton. The change of spinal stiffness due sitting position and loading will be assessed.
- Secondary Outcome Measures
Name Time Method Self-administered neck mobility 4 minutes Self-administered neck mobility questionnaire is a self-administered questionnaire that uses visual analog scales to measure pain-free active rage of motion for all neck movements. The patient is asked to place a mark on a 100 mm line (0 mm = "no movement possible" and 100 mm = "as far as possible"). The total score is the sum of the individual scores (min. score (600) = no restrictions and max. score (0) = total restriction)
Pain during measuring 2 minutes The visual analogue scale will be used to quantify pain, if any of the measurements is painful. The participant is asked to rate his pain intensity on a straight line (100mm) with two endpoints.
Neck Disability Index 4 minutes The Neck Disability Index is a self-report questionnaire with 10-items: pain intensity, personal care, lifting, work, headaches, concentration, sleeping, driving, reading, and recreation. The response to each item is rated on a 6-point scale from 0 (no disability) to 5 (complete disability). The numeric responses for each item are summed for a total score ranging between 0 and 50.
Trial Locations
- Locations (1)
Balgrist University Hospital
🇨🇭Zürich, ZH, Switzerland