The Influence of Different Sitting Postures on Soleus H-Reflex in Normal Subjects
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Compression of Spinal Nerve Root
- Sponsor
- Texas Woman's University
- Enrollment
- 30
- Locations
- 1
- Primary Endpoint
- Lumbosacral nerve root function by as measured by the soleus H-reflex amplitude
- Status
- Completed
- Last Updated
- 13 years ago
Overview
Brief Summary
The purpose of this study was to examine the effect of prolonged sitting duration and three different sitting postures (erect, slumped, and slouched sitting postures) on spinal nerve root function by measuring the soleus (SOL) H-reflex amplitude. In addition, the pressure under the ischial tuberosities during the three sitting postures were assessed and correlated with the SOL H-reflex amplitude.
Detailed Description
Participants were assigned to two groups (prolonged sitting group and controls) based on their daily sitting duration with 15 participants in each group. The outcome measures were recorded during erect, slumped and slouched sitting postures. The differences between the two groups and the three sitting postures in the outcome measures were examined for statistical significance.
Investigators
Hamad Al Amer
Mr
Texas Woman's University
Eligibility Criteria
Inclusion Criteria
- •Able to read, speak, and understand English
Exclusion Criteria
- •Current complaint of low back pain.
- •Current injury to the ankle and/or foot.
- •Limited ankle movement.
- •Leg length discrepancy.
- •History of:
- •Back surgery.
- •Calf muscle injury/surgery.
- •Radicular symptoms.
- •Peripheral neuropathy.
- •Upper motor neuron lesion.
Outcomes
Primary Outcomes
Lumbosacral nerve root function by as measured by the soleus H-reflex amplitude
Time Frame: The outcome was measured during one session that lasted for an average of 3 hours. No further measurement was performed after that session.
Secondary Outcomes
- Pressure under the ischial tuberosities(The outcome was measured during one session that lasted for an average of 3 hours. No further measurement was performed after that session.)