Final Answer:
The tipped scapula is primarily caused by the weakness or shortening of the serratus anterior muscles, affecting scapular stability.Thus, the correct option is c) Serratus anterior.
Step-by-step explanation:
The tipped scapula is primarily associated with the weakness or shortening of the serratus anterior muscles. The serratus anterior plays a crucial role in stabilizing the scapula against the thoracic wall, and when these muscles are either weakened or shortened, it can result in the abnormal tipping or winging of the scapula.
The serratus anterior originates from the upper eight or nine ribs and inserts into the medial border of the scapula. Its contraction is essential for maintaining the normal position and movement of the scapula during various arm motions. If the serratus anterior is weakened or shortened, it can lead to an imbalance in the muscles around the shoulder girdle, causing the scapula to tilt or wing away from the thoracic wall.
In clinical practice, exercises targeting the serratus anterior, such as scapular protraction exercises, are often prescribed to address scapular dyskinesis. Strengthening and lengthening the serratus anterior can help restore proper scapular mechanics, alleviating issues related to the tipped scapula. Understanding the role of specific muscles in such conditions is crucial for designing effective rehabilitation programs and improving overall musculoskeletal function.
Therefore, the correct option is c) Serratus anterior.