Objective: To find the relation between cranio-vertebral angle and hand grip strength in university student mobile users.

Design: cross sectional study. Setting: Ahram Candian University Subjects:100 male and female university students with age ranged from 20 to 30 years old will participate in this study.

Intervention: cross sectional study to detect the relation between cranio-vertebral angle and hand grip strength in university student mobile users.

Main measures:

• FHP app (Pyeongtaek, South Korea) mobile application
• Hand dynamometer (the JAMAR® Hydraulic Hand) (Lupton-Smith et al.,2022)
• Mechanical height and weight scale
• Visual Analogue Scale
• Arabic Neck Disability Index Results: The results will be obtained via one-way analyses of variance (ANOVA).

Inclusion Criteria:

• • Their ages will range from 20-30 years old.

  • Their BMI will be between than 20- 30kg/m2.
  • All of them suffer from mild degree of neck pain.
  • The subjects complain from neck pain for 1 month ago

• Exclusion criteria:

Exclusion criteria were a history of any of the following condition:

• inflammatory diseases or any rheumatic disorders,
• a history of vertebral fractures
• surgical spinal fixation.
• •any neurological disorders like MS

100 male and female patients Their ages will range from 20-30 years old. Their BMI will be between than 20- 30kg/m2, All of them suffer from mild degree of neck pain and They complain from neck pain for 1 month ago