Proper posture is defined as musculoskeletal balance with minimal stress or strain on the body. The human body is a multi-joint system with kinetic chains controlled by the central nervous system, with a series of joints that interact with muscle activity.~Prolonged exposure to unstable or abnormal posture can trigger a chain reaction of weak alignment and imbalance, leading to musculoskeletal diseases such as muscle stiffness or repeated traumatic injury. Sagittal cervical malalignment (SCM), in other words forward head posture (FHP), is one of the poor posture types of the head commonly seen in the sagittal plane. It is defined as the shift of the center of the head towards the front. As the head moves forward, the center of gravity changes. To compensate for this shift in the center of gravity, the upper body slides back and the shoulders move forward, the rounded shoulder develops so that the head is placed in front of the body.~SCM of the head is defined as the anterior extension of the head with hyperextension of the upper cervical vertebrae (C1-C3) and flexion of the lower cervical vertebrae (C4-C7) and hyperlordosis of the cervical curve. It can be caused by a variety of factors, including Sleeping in positions with an excessive elevation of the head, prolonged use of the computer, and developed back muscle weakness.~SCM can cause many harmful symptoms such as neck pain, shoulder pain, back pain, chronic headaches, increased curvature of the spine and scapular dyskinesia, and rounded shoulder.~The rounded shoulder is a bent posture in which the scapulae are elevated and the acromion protrudes forward compared to the center of gravity of the body. These changes can cause an imbalance of the surrounding muscles and eventually pain in the head, temporomandibular joints, neck, back, shoulders and arms.~Scapular dyskinesia is referred to as visible changes in scapular position and movement patterns. It produces changes in the kinematics of the glenohumeral and acromioclavicular joints and can interfere with the activity of the periscapular muscles and rotator cuffs.7 Proprioceptive neuromuscular facilitation (PNF) methods focus on functional diagonal movement patterns and use cutaneous, visual, and auditory stimulation to improve neuromuscular control and function as well as muscle strength, balance, and flexibility. It is used as a progressive resistance for functional training in therapeutic exercises, improves joint limitations, and strengthens muscles. Scapular and neck PNF patterns are known to increase the stability of the head, neck, and scapular muscles.
In modern society, repetitive and monotonous activities are increasing due to the decrease in general physical activity, the development of the information technology industry, and time culture flow. Therefore, prolonged exposure to unstable or abnormal posture can trigger a chain reaction of poor alignment and imbalance, leading to musculoskeletal diseases such as muscle stiffness or repetitive traumatic injury.~Sagittal cervical malalignment (SCM), and also known as Forward head posture (FHP), is one of the poor posture types of the head commonly seen in the sagittal plane. İt is defined as the forward shift of the head. As the head moves forward, the center of gravity changes. To compensate for this shift in the center of gravity, the upper body slides back and the shoulders move forward, the rounded shoulder develops so that the head is placed in front of the body.~SCM can cause many harmful symptoms such as neck pain, shoulder pain, back pain, chronic headaches, increased curvature of the spine and scapular dyskinesis, and rounded shoulder.