What is the primary function of parallel bars or hemi bars in physical therapy?

The primary function of parallel bars, also known as hemi bars, is to provide stability and support when teaching a patient to walk. These bars allow patients to practice gait and ambulation in a safe environment, where they can rely on the structure for balance and safety as they gain confidence in their walking abilities. The close positioning of the bars aids in the rehabilitation process by enabling therapists to monitor and assist patients closely while they learn proper walking techniques. Using parallel bars helps to reduce the risk of falls and instills a greater sense of security during challenging movements, ultimately helping patients progress toward independence in mobility.

The other options involve elements that parallel bars do not primarily focus on, such as weightlifting, resistance training, or facilitating upper body exercises. These activities typically require different types of equipment or environments designed explicitly for strength training or targeted upper body engagement.