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Soleus H-Reflex in Different Sitting Postures

NCT ID: NCT01744899

Last Updated: 2012-12-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

30 participants

Study Classification

OBSERVATIONAL

Study Start Date

2012-01-31

Study Completion Date

2012-05-31

Brief Summary

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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

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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.

Conditions

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Compression of Spinal Nerve Root Spinal Disorder Low Back Pain

Keywords

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Lumbosacral spine Nerve roots Sitting H-reflex

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Prolonged sitting

Includes individuals who spent an average of at least 6 hours a day sitting over the past year.

Sitting posture

Intervention Type OTHER

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

Control

Includes individuals who spent 4 hours or less/day sitting over the past year.

Sitting posture

Intervention Type OTHER

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

Interventions

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Sitting posture

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

Intervention Type OTHER

Eligibility Criteria

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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.
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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The Saudi Arabian Cultural Mission to the United States

UNKNOWN

Sponsor Role collaborator

Texas Woman's University

OTHER

Sponsor Role lead

Responsible Party

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Hamad Al Amer

Mr

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Hamad S Al Amer, MS

Role: PRINCIPAL_INVESTIGATOR

Texas Woman's University

Locations

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Texas Woman's University

Houston, Texas, United States

Site Status

Countries

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United States

Other Identifiers

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16518

Identifier Type: -

Identifier Source: org_study_id