Smartphone Use and Neck Flexion Angle

• ClinicalTrials.gov Identifier: NCT04715009
• Recruitment Status: Completed
• First Posted: January 20, 2021
• Last Update Posted: March 17, 2021
• Sponsor: South Valley University
• Information provided by (Responsible Party): Nehad Ahmed Youness Abo-zaid, South Valley University

Tracking Information

• First Submitted Date: January 14, 2021
• First Posted Date: January 20, 2021
• Last Update Posted Date: March 17, 2021
• Actual Study Start Date: March 1, 2020
• Actual Primary Completion Date: February 1, 2021 (Final data collection date for primary outcome measure)

Current Primary Outcome Measures (submitted: March 13, 2021)

• the neck flexion angle [ Time Frame: the neck flexion angle at day 0 ]
  flexion angle of the neck
• the neck flexion angle [ Time Frame: the neck flexion angle at day 120 ]
  flexion angle of the neck

Original Primary Outcome Measures (submitted: January 14, 2021)

• the neck flexion angle [ Time Frame: the neck flexion angleat day 0 ]
  flexion angle of the neck
• the neck flexion angle [ Time Frame: the neck flexion angleat day 90 ]
  flexion angle of the neck

Current Secondary Outcome Measures (submitted: March 13, 2021)

• hand grip power [ Time Frame: power of hand at date 0 ]
  power of hand
• hand grip power [ Time Frame: power of hand at date 120 ]
  power of hand

Original Secondary Outcome Measures (submitted: January 14, 2021)

• hand grip power [ Time Frame: power of hand at date 0 ]
  power of hand
• hand grip power [ Time Frame: power of hand at date 90 ]
  power of hand

• Current Other Pre-specified Outcome Measures: Not Provided
• Original Other Pre-specified Outcome Measures: Not Provided

Descriptive Information

• Brief Title: Smartphone Use and Neck Flexion Angle
• Official Title: The Effect of Smartphone Use on Neck Flexion Angle and Hand Grip Power Among Adolescence
• Brief Summary: Excessive smartphone use can disrupt your sleep, which can have a serious impact on your overall mental health. It can impact your memory, affect your ability to think clearly, and reduce your cognitive and learning skills. Encouraging self-absorption.

Detailed Description

Persistent failed attempts to use cell phone less often. Preoccupation with smartphone use. Turns to cell phone when experiencing unwanted feelings such as anxiety or depression. Excessive use characterized by loss of sense of time.

Nomophobia-an abbreviation of "no-mobile-phone-phobia"-is also called "cell phone addiction." Symptoms include: Experiencing anxiety or panic over losing your phone. Obsessively checking for missed calls, emails, and texts.

• Study Type: Observational
• Study Design: Observational Model: Cohort; Time Perspective: Prospective
• Target Follow-Up Duration: Not Provided
• Biospecimen: Not Provided
• Sampling Method: Probability Sample
• Study Population: healthy volunteers using smartphone less or more than 4 hours per day have not any signes of musculoskeletal problems
• Condition: Neck Disorder
• Intervention: Not Provided

Study Groups/Cohorts

• participants use smartphone less than 4 hours per day
  participants use smartphone less than 4 hours per day
• participants use smartphone more than 4 hours per day
  participants use smartphone more than 4 hours per day

Publications *

• Bonney RA, Corlett EN. Head posture and loading of the cervical spine. Appl Ergon. 2002 Sep;33(5):415-7. doi: 10.1016/s0003-6870(02)00036-4.
• Janwantanakul P, Sitthipornvorakul E, Paksaichol A. Risk factors for the onset of nonspecific low back pain in office workers: a systematic review of prospective cohort studies. J Manipulative Physiol Ther. 2012 Sep;35(7):568-77. doi: 10.1016/j.jmpt.2012.07.008. Epub 2012 Aug 24.
• Hansraj KK. Assessment of stresses in the cervical spine caused by posture and position of the head. Surg Technol Int. 2014 Nov;25:277-9.
• Grimmer-Somers K, Milanese S, Louw Q. Measurement of cervical posture in the sagittal plane. J Manipulative Physiol Ther. 2008 Sep;31(7):509-17. doi: 10.1016/j.jmpt.2008.08.005.

Recruitment Information

• Recruitment Status: Completed
• Actual Enrollment (submitted: March 13, 2021): 140
• Original Estimated Enrollment (submitted: January 14, 2021): 80
• Actual Study Completion Date: March 1, 2021
• Actual Primary Completion Date: February 1, 2021 (Final data collection date for primary outcome measure)

Eligibility Criteria

Inclusion Criteria:

• volunteers using smartphone less or more than 4 hours per day

Exclusion Criteria:

• low back pain surgeries affecting upper limps

Sex/Gender

• Sexes Eligible for Study: All

• Ages: 12 Years to 18 Years (Child, Adult)
• Accepts Healthy Volunteers: Yes
• Contacts: Contact information is only displayed when the study is recruiting subjects
• Listed Location Countries: Egypt

Administrative Information

• NCT Number: NCT04715009
• Other Study ID Numbers: Smartphone
• Has Data Monitoring Committee: No

U.S. FDA-regulated Product

• Studies a U.S. FDA-regulated Drug Product: No
• Studies a U.S. FDA-regulated Device Product: No

IPD Sharing Statement

• Plan to Share IPD: No

• Current Responsible Party: Nehad Ahmed Youness Abo-zaid, South Valley University
• Original Responsible Party: Same as current
• Current Study Sponsor: South Valley University
• Original Study Sponsor: Same as current
• Collaborators: Not Provided

Investigators

• Principal Investigator: Nehad A Abo-zaid, lecturer; South Valley University, Faculty of Physical Therapy

• PRS Account: South Valley University
• Verification Date: March 2021