Poor Posture and Its Impact on the Kinetic Chain

Poor posture disrupts the kinetic chain and creates compensatory movement patterns that stress other parts of the body. These compensations can occur to maintain balance or function when one part of the chain is misaligned. Common postural issues include:

Forward Head Posture (FHP) occurs when the head juts forward, placing strain on the cervical spine and upper thoracic region. Research by Mahmoud et al. (2020) shows the FHP increases stress on the neck and upper back muscles, often leading to chronic neck pain, tension headaches, and reduced lung capacity.

Pelvic Tilt: An anterior pelvic tilt, where the pelvis tilts forward, increases lumbar lordosis, and compresses the lower vertebrae. This can lead to lower back pain and increase the risk of disc herniations. A posterior pelvic tilt, where the pelvis tilts backwards, flattens the lower back's natural curve and overstretches the hamstrings and lower back muscles, leading to stiffness and discomfort.

Foot Pronation and Supination: Excessive pronation or supination alters the body's alignment, leading to knee valgus, hip internal rotation, and uneven pelvic positioning. Research by Dananberg (2000) demonstrates that foot mechanics directly influence low back pain. A misaligned foot alters the entire lower kinetic chain, leading to changes in gait mechanics, which propagate up to the spine.

We can effectively screen the patient's posture to understand the kinetic chain faults better. Several strategies, such as screening, static postural analysis, and gait analysis, can assist with this.