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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01744899
Other study ID # 16518
Secondary ID
Status Completed
Phase N/A
First received September 26, 2012
Last updated December 5, 2012
Start date January 2012
Est. completion date May 2012

Study information

Verified date December 2012
Source Texas Woman's University
Contact n/a
Is FDA regulated No
Health authority United States: Institutional Review Board
Study type Observational

Clinical Trial 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.


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.


Recruitment information / eligibility

Status Completed
Enrollment 30
Est. completion date May 2012
Est. primary completion date May 2012
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 18 Years to 50 Years
Eligibility Inclusion Criteria:

- Able to read, speak, and understand English

Exclusion Criteria:

1. Current complaint of low back pain.

2. Current injury to the ankle and/or foot.

3. Limited ankle movement.

4. Leg length discrepancy.

5. Scoliosis.

6. History of:

- Back surgery.

- Calf muscle injury/surgery.

- Radicular symptoms.

- Peripheral neuropathy.

- Upper motor neuron lesion.

- Systemic and metabolic diseases.

- Cancer.

7. Pregnant at the time of the study.

8. Use of pain medications at the time of the study.

Study Design

Observational Model: Case Control, Time Perspective: Cross-Sectional


Intervention

Other:
Sitting posture
The outcomes were measured while the participants assumed erect, slumped and slouched sitting postures.

Locations

Country Name City State
United States Texas Woman's University Houston Texas

Sponsors (2)

Lead Sponsor Collaborator
Texas Woman's University The Saudi Arabian Cultural Mission to the United States

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Lumbosacral nerve root function by as measured by the soleus H-reflex amplitude The outcome was measured during one session that lasted for an average of 3 hours. No further measurement was performed after that session. No
Secondary Pressure under the ischial tuberosities Pressure under the ischial tuberosities was measured in millimeter of mercury (mmHg), with 0 mmHg representing no ischial pressure and 644 mmHg representing the highest pressure. The outcome was measured during one session that lasted for an average of 3 hours. No further measurement was performed after that session. No
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