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Completed

NCT Number: NCT04082013

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?

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Key information

Conditions

Flexibility

Age range

18 year–40 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Cairo university

Giza, Egypt

About this study

  • 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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

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

Treatment and study plan

Hamstring Flexibility

Other

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.

Primary outcomes

  1. Knee extension ROM

    Time frame: 30 minutes

    measuring knee extension ROM from 90 degrees hip flexion with opposite-leg flexed and extended

Sponsors and collaborators

Lead sponsor

Cairo University

Other

Registry information

Important dates

Study start
2019
Primary completion
2019
Study completion
2019
First posted
Sep 9, 2019
Registry last updated
Jul 29, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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