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NCT Number: NCT07332845

Symmetrical Scapula-pelvis Proprioceptive Neuromuscular Facilitation and Superficial Back Line in Chronic Neck Pain With Hamstring Tightness

A research study will be conducted at Physiotherapy department of the Sindh Institute of Physical Medicine and Rehabilitation, Karachi, Pakistan. Overall 156 patients with 18-40 years old individuals with neck pain will be eligible and they will be included through non-probability, purposive sampling technique. The written informed consent will be taken from all the patients. They will be divided through Simple random sampling (computer generated software) method into two groups, 78 in each group. Group A (experimental group) will receive PNF Symmetrical Scapula-Pelvis Patterns (PNF-SSPP), group B (control group) will receive sub occipital muscle inhibition technique (SMI) and static stretching (SS) of hamstring muscle. All participants will be assessed using assessment form. Outcome measures will be Pain, disability, disability, neck range of motions, hamstring tightness, head posture, and levator scapulae index. An independent assessor blinded to the treatment will assess all the patients for treatment outcome assessment at baseline, after first session and post treatment. Treatment sessions will be given thrice a week for 6 weeks.

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Key information

Age range

18 year–40 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Sindh Institute of Physical Medicine and Rehabilitation

Karachi, Sindh, 75300, Pakistan

Location status: Recruiting

Location contact

Faizan Siddiqui, MSAPT

CONTACT

[email protected]

+923350352016

About this study

A maximum drop-out rate of 20% is expected. The Statistical package for the social sciences (SPSS) 23 version will be used for data analysing. The Mean ± SD will be calculated for quantitative variables like age. The qualitative variables will be shown through calculated frequencies and percentages. The outcome results of the study (decrease pain intensity, improve disability, improve ROM and improve muscle tightness) taken before, after 1st session and after 18th session will be compared and analyzed. The repeated measure of ANOVA will be used as the statistical test. The p-value of 0.05 will be considered as level of significant.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Individual with both male and female gender
  • Individuals with chronic neck pain (pain for > 3 month) with hamstring tightness

Exclusion criteria

  • Any history related to spinal surgery
  • Previous administration of epidural injections
  • Neck pain due to specific pathology
  • Patients with radiculopathy or myelopathy
  • Traumatic spinal cord injury
  • Neck pain associated with progressive neurological deficit or loss of strength

Treatment and study plan

Suboccipital muscle inhibition technique

Other

The Suboccipital Muscle Inhibition technique is a manual therapy method used by practitioners to relieve tension in the suboccipital muscles, which are located at the base of the skull.

Symmetrical Scapula-Pelvis Patterns Exercises

Other

Symmetrical scapula-pelvis patterns refer to a balanced, aligned posture and movement of the shoulder blades and pelvis which is often a therapeutic goal in physical rehabilitation with proprioceptive neuromuscular facilitation.

Static stretching of hamstring muscle

Other

Static stretching for hamstrings involves holding a position that creates tension in the back of the thigh for 30 seconds.

Primary outcomes

  1. Change in pain intensity with visual analogue scale for pain at Day 1

    Time frame: From enrolment to the end of the first treatment session at Day 1.

    The Visual Analogue Scale is a 10 cm line used to measure pain intensity, where the patient marks a point on the line to indicate their pain level, with 0 representing "no pain" and 10 representing "pain as bad as it could possibly be". A score is obtained by measuring the distance from the "no pain" end to the patient's mark, which can be done in centimeters (0-10) or millimeters (0-100). Higher scores indicate greater pain intensity, and this score helps healthcare providers assess severity, which can be categorized as mild (1-3), moderate (4-6), or severe (7-10)

  2. Change in pain intensity with visual analogue scale for pain at 6 weeks

    Time frame: From enrolment to the end of 18 treatment session at 6 weeks

    The Visual Analogue Scale (VAS) is a 10 cm line used to measure pain intensity, where the patient marks a point on the line to indicate their pain level, with 0 representing "no pain" and 10 representing "pain as bad as it could possibly be". A score is obtained by measuring the distance from the "no pain" end to the patient's mark, which can be done in centimeters (0-10) or millimeters (0-100). Higher scores indicate greater pain intensity, and this score helps healthcare providers assess severity, which can be categorized as mild (1-3), moderate (4-6), or severe (7-10).

  3. Change in range of motion with goniometry at Day 1

    Time frame: From enrolment to the end of first treatment at Day 1

    Goniometry measures the change in range of motion of a joint in degrees by using a goniometer to calculate the joint's angle. The increase in degrees suggests increase in range of motion and decrease suggests decrease in range of motion.

  4. Change in range of motion with goniometry at 6 weeks

    Time frame: From enrolment to the end of 18 treatment sessions at 6 weeks.

    Goniometry measures the change in range of motion of a joint in degrees by using a goniometer to calculate the joint's angle. The increase in degrees suggests increase in range of motion and decrease suggests decrease in range of motion.

  5. Change in neck disability with Neck Disability Index at day 1

    Time frame: From enrolment to the end of first treatment session at Day 1.

    A change in the Neck Disability Index score indicates a change in a patient's self-reported neck disability. A higher score means greater disability.The NDI is scored from 0 to 50, or 0% to 100%. A score of 0 indicates no limitation, while a score of 50 represents complete limitation.

  6. Change in neck disability with Neck Disability Index at 6 weeks

    Time frame: From enrolment to the end of 18 treatment sessions at 6 weeks.

    A change in the Neck Disability Index score indicates a change in a patient's self-reported neck disability. A higher score means greater disability.The NDI is scored from 0 to 50, or 0% to 100%. A score of 0 indicates no limitation, while a score of 50 represents complete limitation.

  7. Change in hamstring tightness with Sit and Reach (SR) test at Day 1

    Time frame: From enrolment to the end of first treatment session at Day 1.

    A low Sit and Reach test score in centimetre indicates tight hamstrings, while a higher score shows better hamstring flexibility. When a person with tight hamstrings performs the Sit and Reach test, the muscles pull the pelvis into a posterior tilt, which limits the ability to reach as far and can cause the lower back to round instead of the spine flexing naturally. As hamstring tightness decreases through stretching, the SR score increases, signifying greater flexibility and improved superficial back line.

  8. Change in hamstring tightness with Sit and Reach (SR) test at 6 weeks

    Time frame: From enrolment to the end of 18 treatment sessions at 6 weeks.

    A low Sit and Reach test score in centimetre indicates tight hamstrings, while a higher score shows better hamstring flexibility. When a person with tight hamstrings performs the Sit and Reach test, the muscles pull the pelvis into a posterior tilt, which limits the ability to reach as far and can cause the lower back to round instead of the spine flexing naturally. As hamstring tightness decreases through stretching, the SR score increases, signifying greater flexibility and improved superficial back line.

Secondary outcomes

  1. Change in head posture with goniometry at Day 1

    Time frame: From enrolment to the end of first treatment session at Day 1

    Goniometry can measure changes in forward head posture by using a goniometer to calculate the craniovertebral angle. This involves placing the goniometer's base on the C7 spinous process and the moving arm on the tragus of the ear, with a smaller CVA angle indicating a greater degree of forward head posture and vice versa. Changes are tracked by taking repeated measurements over time to see if the CVA increases (improving posture) or decreases (worsening posture).

  2. Change in head posture with goniometry at 6 weeks

    Time frame: From enrolment to the end of 18 treatment sessions at 6 weeks

    Goniometry can measure changes in forward head posture by using a goniometer to calculate the craniovertebral angle. This involves placing the goniometer's base on the C7 spinous process and the moving arm on the tragus of the ear, with a smaller CVA angle indicating a greater degree of forward head posture and vice versa. Changes are tracked by taking repeated measurements over time to see if the CVA increases (improving posture) or decreases (worsening posture).

  3. Change in levator scapulae index with vernier caliper at Day 1

    Time frame: From enrolment to the end of first treatment session at Day 1

    The levator scapulae index is a measurement technique used to assess the relative length of the levator scapulae muscle. It provides a normalized value by comparing the muscle's length to an individual's total body height, which accounts for variations in size between patients. A vernier caliper is the tool used for this measurement due to its accuracy. A normal levator scapulae index range is greater than or equal to 7.44. Decrease in score suggests decrease in muscle length and increase suggests increase in length.

  4. Change in levator scapulae index with vernier caliper at 6 weeks

    Time frame: Time Frame: From enrolment to the end of 18 treatment sessions at 6 weeks

    The levator scapulae index is a measurement technique used to assess the relative length of the levator scapulae muscle. It provides a normalized value by comparing the muscle's length to an individual's total body height, which accounts for variations in size between patients. A vernier caliper is the tool used for this measurement due to its accuracy. A normal levator scapulae index range is greater than or equal to 7.44. Decrease in score suggests decrease in muscle length and increase suggests increase in length.

Study contacts

Contact information is provided by the study sponsor or research team.

Aftab Ahmed Mirza Baig, PhD

CONTACT

[email protected]

+923002739920

Basit Ansari, PhD

CONTACT

[email protected]

+923222279221

Sponsors and collaborators

Lead sponsor

University of Karachi

Other

Collaborators

  • Sindh Institute of Physical Medicine and Rehabilitation

Registry information

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
Jan 12, 2026
Registry last updated
Mar 10, 2026

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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