The Role of the Rate of Force Application in Responses to Spinal Manipulation Therapy
- Conditions
- Spinal Manipulation
- Registration Number
- NCT02550132
- Lead Sponsor
- Université du Québec à Trois-Rivières
- Brief Summary
The objective of the present study is to determine if spinal manipulations with a constant rate of force application but with different peak force and time to peak force lead to similar responses in healthy adults.
- Detailed Description
Although there are indirect evidences that the rate of force application modulates neuromuscular responses to spinal manipulation therapy (SMT) through peak force or thrust duration modulations, such an assumption remains to be confirmed. Therefore, the objective of the present study was to determine if different SMT force-time profiles where a constant rate of force application would be maintained (through the modulation of the peak force and the time to peak force) lead to similar neuromechanical responses. Based on the available data relative to the effect of SMT biomechanical parameters modulation, it was hypothesized that neuromuscular responses would be similar across SMT force-time profiles, while vertebral displacements would increase as SMT peak force increases.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 25
- Healthy adult
- Thoracic or lumbar pain
- History of back trauma or surgery
- Severe osteoarthritis
- Inflammatory arthritis
- Vascular conditions
- Contraindication to the use of SMT
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Primary Outcome Measures
Name Time Method Left T6 Normalized Root Mean Square (RMS) Value During the 300N spinal manipulation procedure, assessed up to 2 seconds following thrust onset Normalized amplitude (RMS) of surface electromyography response. The normalisation was achieved by dividing the obtained RMS by the RMS value before thrust application.
Left T8 Normalized Root Mean Square (RMS) Value During the 300N spinal manipulation procedure, assessed up to 2 seconds following thrust onset Normalized amplitude (RMS) of surface electromyography response. The normalisation was achieved by dividing the obtained RMS by the RMS value before thrust application.
Right T6 Normalized Root Mean Square (RMS) Value During the 300N spinal manipulation procedure, assessed up to 2 seconds following thrust onset Normalized amplitude (RMS) of surface electromyography response. The normalisation was achieved by dividing the obtained RMS by the RMS value before thrust application.
Right T8 Normalized Root Mean Square (RMS) Value During the 300N spinal manipulation procedure, assessed up to 2 seconds following thrust onset Normalized amplitude (RMS) of surface electromyography response. The normalisation was achieved by dividing the obtained RMS by the RMS value before thrust application.
Vertebral Displacement of the Sixth Thoracic Vertebra During the 300N spinal manipulation procedure, assessed up to 2 seconds following thrust onset Absolute posterior to anterior vertebral displacement during the spinal manipulation in centimeter
Vertebral Displacement of the Seventh Thoracic Vertebra During the 300N spinal manipulation procedure, assessed up to 2 seconds following thrust onset Absolute posterior to anterior vertebral displacement during the spinal manipulation in centimeter
Vertebral Displacement of the Eighth Thoracic Vertebra During the 300N spinal manipulation procedure, assessed up to 2 seconds following thrust onset Absolute posterior to anterior vertebral displacement during the spinal manipulation in centimeter
- Secondary Outcome Measures
Name Time Method