• see if there is significant difference between subjects with forward head rounded shoulder posture and subjects with normal posture in hand grip strength in asymptomatic young adults
• see if there is significant difference between subjects with rounded shoulder posture and subjects with normal posture in hand grip strength in asymptomatic young adults

• in forward head posture there is flexion in lower cervical vertebrae that causes tension on lower cervical nerve roots according to Harrison systemic review and these lower cervical nerve roots supply hand muscles
• also in rounded shoulder posture there is weakness in scapular stabilizers and retractors which affect proximal stability of the arm
• proximal stability is important for distal mobility
• so from this biomechanical point of veiw we conduct this study to see if forward head and rounded shoulder posture can affect hand grip strength in asymptomatic young adults.

Inclusion Criteria:

66 subjects from both genders sedentary life.

• 22 subjects with rounded shoulder posture with the distance between on the table and the posterior aspect of lateral part of acromion process ≥ 2.5 cm
• 22 subjects with forward head rounded shoulder posture with craniovertebral angle ≤ 50 and the distance between on the table and the posterior aspect of lateral part of acromion process ≥ 2.5 cm
• 22 subjects with normal posture
• asymptomatic participants
• age range from 19-24 years old
• normal body mass index
• right handed subjects

Exclusion Criteria:

• • Neck or shoulder symptoms

  • Shoulder fracture
  • Shoulder dislocation
  • radiculopathy
  • Recent shoulder surgery
  • athletes
  • musculoskeletal abnormalities

asymptomatic young adults students

1. forward head rounded shoulder posture group
2. rounded shoulder posture group
3. normal posture group