[Purpose] The present study aimed to examine the correlation between rounded shoulder
posture, neck disability indices and the degree of forward head posture. [Subjects and
Methods] Subjects aged 19–24 years were selected for this study, and the craniovertebral
angle was used to measure the degree of forward head posture in the standing and seated
positions. Vernier calipers were used to measure rounded shoulder posture in the supine
position, and neck pain and functional disability were assessed using neck disability
indices. [Results] Angle and neck disability indices in both standing and sitting posture
positions exhibited a significant inverse relationship. However, no significant
correlation was detected between the craniovertebral angle and rounded shoulder posture
for the standing and sitting posture positions. [Conclusion] In conclusion, it was
demonstrated in the present study that, depending on the degree of forward head posture,
changes were detected in the neck disability indices. However, even an increase in the
forward head tilt angle did not lead to rounded shoulder posture. Therefore, maintaining
proper posture may prevent postural pain syndrome, functional disability, and postural
deformity.