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

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

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04082013
Enrollment
73
Registered
2019-09-09
Start date
2019-04-01
Completion date
2019-07-25
Last updated
2021-07-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Flexibility

Brief summary

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?

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.

Interventions

OTHERHamstring Flexibility

The active knee extension test has been proposed as the gold standard for assessment of hamstring flexibility, as it utilizes readily available equipment and offers a quick, reliable, and low-cost alternative for measurement of hamstring flexibility (Connor et al; 2015). * 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 used as the hamstring muscle length for the data analysis (Dong-Kyu Lee, et al; 2018). * the procedures will be done with opposite-leg flexed, then repeated with opposite-leg extended.

Sponsors

Cairo University
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
Yes

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

Design outcomes

Primary

MeasureTime frameDescription
Knee extension ROM30 minutesmeasuring knee extension ROM from 90 degrees hip flexion with opposite-leg flexed and extended

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026