Effect of Opposite Leg Position on Hamstring Flexibility in Patients With Mechanical Low Back Pain

PURPOSE: this study aimed to investigate the effect of opposite knee position on hamstring flexibility BACKGROUND Hamstrings tightness is one of the most common findings in patients with LBP. It is thought that, due to the attachments of hamstrings to the ischial tuberosity, hamstrings tightness generates posterior pelvic tilt and decreases lumbar lordosis, which can result in LBP.

HYPOTHESES There will be significant difference in the hamstring flexibility with changing position of opposite knee (flexed or extended) in patients with mechanical low back pain.

RESEARCH QUESTION: Will changing position of opposite knee (flexed or extended) affect the hamstring flexibility in patients with mechanical low back pain?

Study Overview

• Status: Completed
• Conditions: Flexibility
• Intervention / Treatment: Other: Hamstring Flexibility

Detailed Description

• The subject will be instructed to maintain 90° hip flexion in the supine position.
• Then asked to actively extend the knee joint.
• The degree of achieving active knee extension will be measured using a universal goniometer.
• The average of three active knee extension measurements will be recorded used as the hamstring muscle length for the data analysis (Dong-Kyu Lee, et al., 2018).
• This test will be done for the same limb with opposite leg extended and with opposite flexed.

• Study Type: Observational
• Enrollment (Actual): 73

Contacts and Locations

Study Locations

• Egypt
  • Giza, Egypt
    • Cairo university

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 40 years (ADULT)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

• Male and female
• Age range from 18-40 years old
• With previous mentioned inclusion criteria

Description

Inclusion Criteria:

• Patients with history of back pain and assessed with Mechanical inflammatory low back pain index and have very high grade for mechanical component.
• Age ranges from 18-40 years.
• The body mass index of the subject is ≤25 kg/meter square.

Exclusion Criteria:

1. Previous trauma, fractures or surgery of the back.
2. Malignancy of the back.
3. Rheumatoid arthritis
4. Spondylolysis or spondylolithesis
5. History of lower extremity injury within 6 months prior to the study

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Knee extension ROM	measuring knee extension ROM from 90 degrees hip flexion with opposite-leg flexed and extended	30 minutes

Collaborators and Investigators

• Sponsor: Cairo University

Study record dates

Study Major Dates

• Study Start (ACTUAL): April 1, 2019
• Primary Completion (ACTUAL): June 27, 2019
• Study Completion (ACTUAL): July 25, 2019

Study Registration Dates

• First Submitted: September 5, 2019
• First Submitted That Met QC Criteria: September 5, 2019
• First Posted (ACTUAL): September 9, 2019

Study Record Updates

• Last Update Posted (ACTUAL): July 29, 2021
• Last Update Submitted That Met QC Criteria: July 26, 2021
• Last Verified: March 1, 2019

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Pain; Neurologic Manifestations; Back Pain; Low Back Pain
• Other Study ID Numbers: P.T.REC/012/002301

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No