Assessment of Core Muscles Endurance, Lumber Curvature and Function in Smartphone-addicts With Nonspecific Low Back Pain

NCT07261566 | Not Yet Recruiting

• 1 other identifier: P.T.REC/012/006095
• Study Type: observational
• Target: 65
• Locations: 1 country
• Sites: 1

Brief Summary

This study will attempt to assess the relation between, core muscle endurance, lumber spine curvature and function among smartphone-addicts university students with chronic nonspecific low back pain.

Conditions

Low Back Pain

Outcome Measures

Primary Outcomes (6)

• Assessment of smartphone addiction

  Smartphone addiction is examined using the Smartphone Addiction scale (SAS), which is a self-diagnosis instrument that identifies smartphone addicts. The final version included 33 items that revealed the presence of six subscales, including daily life disruption, positive anticipation, withdrawal, cyberspace-oriented connection, overuse, and tolerance. The items are assessed on a six-point Likert scale as follows: strongly disagree (1), disagree (2), weakly disagree (3), weakly agree (4), agree (5), and strongly agree (6). The total of the six subscales equals the SAS score, which ranges from 33 to 198; higher scores indicate more addicted behavior with smartphone use.

  8 weeks

• Assessment of lumbar spinal curvature

  Kinovea software will be used to measure lumbar spinal curvature. The subject should be positioned in a sidelong stance without footwear, aligned with their back against a calibration plane, and their shoulders and elbows flexed at an angle of 90 degrees. Clearly delineate both earlobes on the subject Ascertain the critical reference points along the lumbar spine at 12 thoracic vertebra, third lumbar vertebra and first sacral vertebra. To ascertain the lordosis angle, identify the point on the lumbar spine that is nearest to the plumb line. Construct two lines that run parallel to the curvature of the lumbar region at both the superior and inferior aspects. Employ Kinovea to measure the angle formed at the intersection of these two lines. Deduct this measurement from 180° to derive the lordosis angle

  8 weeks

• Assessment of trunk anterior flexor test

  During the trunk anterior flexor test, individuals sit with their hands over their chest, trunk flexed to sixty degrees, and knee flexed to ninety degrees, time starts when participants adopt the measured posture and ends when the trunk deviates from the 60º angle. The investigator uses the commands 'start' and 'stop' to begin and end the test, while an assisting investigator uses a stopwatch to record the times

  8 weeks

• Assessment of lateral musculature plank test

  It will be applied for both sides. In the left lateral musculature plank test, participants' feet are placed one on top of the other, the right arm perpendicular to the floor, elbow lying on the mat, left arm across the chest, and left hand on the right shoulder. A similar position is used for the right lateral musculature plank test, with the left arm perpendicular to the floor. The investigator uses the commands 'start' and 'stop' to begin and end the test, while an assisting investigator uses a stopwatch to record the times. When the investigator observes an error in the line between the participants' trunk or lower body parts (thigh or shank), then time will be stopped.

  8 weeks

• Trunk posterior extensor test

  Participants lie prone on an examination table for the trunk posterior extensor test, with both anterior superior iliac spines (ASISs) on the table's edge and their hands on the seat of a chair positioned in front of them. Assistance held the lower extremities above and below the participants' knees to secure the lower body. Time begins when participants establish a horizontal posture of the trunk, detach their hands from the chair and then cross them over their chest, and time will be stopped when participants are unable to maintain that position.

  8 weeks

• Assessment of back functional disability

  The Oswestry Disability Index (ODI) is regarded as the 'gold standard' of low back functional outcome instruments. The questionnaire measures the level of impairment in ten activities of daily living: Pain intensity, Personal care, Lifting, Walking, Sitting, Standing, Sleeping, Sex (if applicable), Social, Travel. Each item has six statements that are evaluated from 0 to 5. The overall score is determined as a percentage, with 0% representing no disability and 100% indicating the highest level of disability

  8 weeks

Study Arms (2)

Smartphone-addicted participants with chronic nonspecific low back pain.

This group included 33 smartphone-addicted participants with chronic nonspecific low back pain.

Other: non

Smartphone-addicted participants without chronic nonspecific low back pain.

This group included 32 smartphone-addicted participants without chronic nonspecific low back pain.

Other: non

Interventions

non OTHER

Smartphone-addicted participants with chronic nonspecific low back pain.; Smartphone-addicted participants without chronic nonspecific low back pain.

Eligibility Criteria

• Age: 18 Years - 25 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

This study was conducted with a total of 65 participants. They were assigned into two groups, consisting of both genders with smartphone addiction according to the Smartphone Addiction Scale (SAS), and university students who had been experiencing chronic nonspecific low back pain for a period of at least six months

You may qualify if:

• University students who have been experiencing chronic nonspecific low back pain for a period of at least six months
• Both genders
• Smartphone addicted cut-off points for smartphone addiction at 31 for men and 33 for women in smartphone addiction scale short version
• Age is ranged from 18-25 years old

You may not qualify if:

• Athletes
• Any history of spinal trauma or dysfunction
• Systemic disease presenting in the back (such as ankylosing spondylitis)
• Spinal deformity
• Leg length discrepancy
• History of spinal, abdominal or orthopedic surgery
• Patients who are under treatment with nonsteroidal anti-inflammatory drugs

Sponsors & Collaborators

• Cairo University: lead

Study Sites (1)

Ahd Ramadan Mohamed

Giza, Egypt

Location

MeSH Terms

Conditions

Low Back Pain

Condition Hierarchy (Ancestors)

Back Pain; Pain; Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• Rabab M Monged, PHD

  6 October university

  STUDY DIRECTOR

• Salwa F Abdelmaged, Professor

  Cairo University

  STUDY CHAIR

Central Study Contacts

Ahd R Mohamed, Master

CONTACT

01115392633; 10722023487668@pg.cu.edu.eg

Dina S Abduallah, PHD

CONTACT

01282742057; drdinasayed_ptW@yahoo.com

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal investigator

Study Record Dates

• First Submitted: November 22, 2025
• First Posted: December 3, 2025
• Study Start: November 30, 2025
• Primary Completion: February 5, 2026
• Study Completion: February 25, 2026
• Last Updated: December 3, 2025

Record last verified: 2025-11

Locations

EG (1)