Effect of Whole Body Vibration in Young Females With Smartphone Addiction

NCT06849687 | Completed DMC

• 1 other identifier: No. 7486
• Study Type: interventional
• Target: 66
• Locations: 1 country
• Sites: 1

Brief Summary

Young adults have a high prevalence of smartphone addiction. Many adolescents use their smartphones extensively for communication, which starts out as a habit but eventually turns into an addiction. Numerous studies have shown that adolescents use social media for roughly ten hours every day.

Conditions

Smart Phone Addiction

Keywords

whole body vibration; hand grip strength; muscle activity; upper limb function; smart phone addiction

Outcome Measures

Primary Outcomes (1)

• Hand grip strength

  Participants will be asked to perform maximum hand grip with the dominant hand with hold for 5 seconds, for three repetitions using the hand held dynamometer (dynamometer, Jamar, United States), a 60 seconds rest interval will be planned in between the repetitions. The mean of the three repetitions will used for calculation of hand grip strength.

  4 weeks

Secondary Outcomes (5)

• pinch strength

  4 weeks

• Muscle activity of flexor carpi radialis muscle

  4 weeks

• Muscle activity for flexor carpi ulnaris muscle

  4 weeks

• Muscle activity for extensor digitorum communis muscle

  4 weeks

• Upper limb function

  4 weeks

Study Arms (2)

Group A (Whole body vibration group)

EXPERIMENTAL

Whole body vibration (WBV) group will receive vibration on the platform for 20 repetitions in 2 sets with 2 minutes rest between sets in addition to strengthening exercises to the hand muscles.

Device: Whole body vibration; Other: Strengthening exercises

Group B (Sham Whole body vibration group)

SHAM COMPARATOR

participants will receive WBV with the device turned off in addition to strengthening exercises to the hand muscles.

Device: Sham Whole body vibration; Other: Strengthening exercises

Interventions

Strengthening exercises OTHER

Participants will use elastic resistance for the finger extension and flexion exercises, and ball to strength wrist flexors for two sets of 10 repetitions within a training session.

Group A (Whole body vibration group); Group B (Sham Whole body vibration group)

Whole body vibration DEVICE

Participants will be asked to sit on an chair without armrests close to the platform and will be asked to perform 90° shoulder flexion, bend both elbows slightly, flex the trunk forwards and place both hands on the platform.

Group A (Whole body vibration group)

Sham Whole body vibration DEVICE

Participants will receive the vibration with the device turned off.

Group B (Sham Whole body vibration group)

Eligibility Criteria

• Age: 18 Years - 25 Years
• Healthy Volunteers: No
• Age Groups: Adult (18-64)

You may qualify if:

• High smartphone users according to the Smartphone Addiction Scale Short Version (SAS- SV)
• Body mass index (BMI) less than 30 kg/m²
• Didn't receive regular exercise in the last 6 months.

You may not qualify if:

• Medical history of median nerve release, hand or thumb tendon lesion
• Prior hand or wrist fractures
• Medical history of hand injuries, and upper limb skin diseases
• WBV contraindications include (joint issues, acute inflammations, back pain, epilepsy, diabetes, or neuromuscular disorders, or dizziness, any discomfort, and nausea)

Sponsors & Collaborators

• Cairo University: lead

Study Sites (1)

Faculty of physical therapy

Giza, Giza Governorate, 1124, Egypt

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, CARE PROVIDER
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor of physical therapy for surgery, Faculty of physical therapy

Study Record Dates

• First Submitted: February 24, 2025
• First Posted: February 27, 2025
• Study Start: May 22, 2025
• Primary Completion: October 30, 2025
• Study Completion: November 30, 2025
• Last Updated: December 16, 2025

Record last verified: 2025-05

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL

Locations

EG (1)