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Completed

NCT Number: NCT06613620

Additional Effects of Surface Electromyographic Biofeedback on Post Facilitation Stretching and Strengthening in Lower Crossed Syndrome;A Randomized Control Trial

This study is a randomised control trial and the purpose of this study is to determine the additional effects of surface electromyographic biofeedback on post facilitation stretching and strengthening in lower crossed syndrome.

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Key information

Conditions

Lower Cross Syndrome

Age range

19 year–35 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Foundation University College of Physical Therapy

Punjāb Chak, Punjab Province, 46000, Pakistan

About this study

Participants will be recruited into their respective groups using a sealed envelope method. Lower crossed syndrome will be assessed using the following tests:

Prone hip extension test Trunk flexion strength test Tightness in erector spinae Modified Thomas test

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Age 19-35 years
  • Both genders
  • Positive modified Thomas test
  • Positive prone hip extension strength test
  • Positive trunk flexion strength test
  • Tight erector spinae
  • BMI normal (18.5-24.9 Kg/m2)
  • Local intermittent lumbar pain
  • moderate pain (NPRS 3-7)
  • Painless movement and activity
  • Pain only produced by sustained loading in relevant position, which is then relieved on moving from that pos

Exclusion criteria

  • Acute flare of LBP
  • Centralization and peripheralization of pain
  • Signs of stenosis(leg symptoms when walking that are eased upon flexion)
  • Pain due to repetitive movements
  • Paresthesia/Numbness
  • Structual deformity(Kyphosis, spondylosis, spondylolisthesis,scoliosis and joint contractures)
  • Curve reversal
  • Pregnancy
  • Post surgery
  • Degenerative and inflammatory spine diseases

Treatment and study plan

standard treatment

Other

All participants will receive 4 weeks of intervention with a frequency of 3 times/week i.e. 10minutes of hot pack followed by post facilitation stretching and strengthening protocol.

The exercise protocol will be taught to the patient by an experienced physiotherapist and supervised on the subsequent sessions. The protocol will be gradually progressed as per the patient's tolerance.

Visual and auditory feedback on SEMG biofeedback unit

Other

Patients will receive SEMG biofeedback assisted post facilitation stretching and strengthening. Patients will receive 50-80%of their maximum voluntary contraction as per the biofeedback and gradually the contraction time will be increased.

Electrical Muscle Stimulation

Other

Electrical muscle stimulation will be provided in addition to visual and auditory feedback by the SEMG biofeedback unit to the weak muscles until the patients achieve the desired level of contractions.

Primary outcomes

  1. Lumber lordotic angle

    Time frame: 4 weeks

    It will be measured using a mobile application. One sensor will be placed at the T12-L1 and other at L5-S1 spinous processes. The two angles will be recorded and their sum will be considered as the lumber lordotic angle.

  2. Joint position sense

    Time frame: 4 weeks

    One sensor will be placed at T12-L1 and the other placed at L5-S1 simultaneously. Patient will be asked to flex and then extend maximally; his end ranges will be recorded. Within the middle range, therapist will decide the targeted angle for individualized patient. Patient will be asked to memorize the target position for 5seconds. The absolute error will measure by subtracting the actual angle and the target angle.

  3. pain intensity

    Time frame: 4 weeks

    It will be measured on a numeric pain rating scale in which the subjects select a number ranging from 0-10 according to their intensity of pain. '0' score indicates no pain while '10' indicates worst pain experienced.

  4. Functional disability

    Time frame: 4 Weeks

    It will be measured using a Modified Oswestry lower back Disability Index. It is a 10item based questionnaire and each item is further divided into 6statements. The score of '0-4' indicated no disability while 35-50 indicate complete disability.

Sponsors and collaborators

Lead sponsor

Foundation University Islamabad

Other

Registry information

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Sep 26, 2024
Registry last updated
Dec 22, 2025

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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