Clinical trial NCT05817877: Investigation of the Relationship of Smartphone Use Time With Neck Endurance, Head Posture, Lateral Grip Strength, Hand Grip Strength and Postural Control Parameters in Young Adults
Official title: Investigation of the Relationship of Smartphone Use Time With Neck Endurance, Head Posture, Lateral Grip Strength, Hand Grip Strength and Postural Control Parameters in Young Adults
Study type: OBSERVATIONAL
Overall status: RECRUITING
Conditions: Cell Phone Use
Keywords: CoP
Balance
forehead posture
Lead sponsor: Dokuz Eylul University
Sponsor class: OTHER
First posted: 2023-04-18
Enrollment: 120
Sex: ALL
Minimum age (years): 18
Maximum age (years): 35
Standard ages: ADULT
Accepts healthy volunteers: yes
Observational model: OTHER
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: healthy young adults

Brief summary: In the planned study, young adults between the ages of 18-35 with different phone usage durations will be evaluated. The aim of the study is to investigate whether the average daily phone usage time has a direct relationship with neck muscle endurance, rough grip strength, lateral grip strength and head posture, and whether there is an indirect relationship with postural control. People who have phones with IOS 12 or Android 9 and above will be invited to the study. By looking at the screen time tracking feature in these versions, the daily phone usage hour for the last week will be calculated and the participants will be divided into two groups as the daily phone usage average of 5, and below and 5 hours. In the planned study, neck endurance will be tested on flexor and extensor muscle groups in accordance with the literature. The lateral flexion and anterior tilt angles will be calculated with two photographs taken from the anterior and lateral sides of the head posture of the person's shoulder, and the hand grip strength will be measured with a Jamar hand dynamometer and the lateral grip strength will be measured with a pinchmeter. Postural control evaluation will be measured by means of center of pressure-CoP parameters measured with TekScan brand pressure platform. The study is planned to be carried out in the Movement Analysis Laboratory of the Faculty of Physical Therapy and Rehabilitation of Dokuz Eylul University. Participants will be selected from healthy adults between the ages of 18-35 who volunteered to participate in the study among the students of the Faculty of Physical Therapy and Rehabilitation, their relatives and the relatives of the researcher. The study is planned to be completed within 6 months following ethical approval.


Eligibility criteria: Inclusion Criteria:

* Using a phone with IOS 12 or android 9 and above for at least one week

Exclusion Criteria:

* Presence of orthopedic surgery in the last 6 months
* Those who have a disease or take medication that will prevent neuromuscular system and postural control measurements
* have neck pain

Primary outcomes:
measure: postural control parameters
timeFrame: up to 8 weeks
Secondary outcomes:
measure: hand grip strength
timeFrame: up to 8 weeks
measure: lateral grip strength
timeFrame: up to 8 weeks
measure: neck muscle endurance
timeFrame: up to 8 weeks
Other outcomes:
Locations:
city: İzmir
country: Turkey
facility: Dokuz Eylül Univercity
state: Balçova
Study officials:
References: