Final Answer:
When seated, especially in a slouched or unsupported posture, the spine undergoes increased compressive forces, leading to higher intradiscal pressure compared to lying down. Therefore, the given statement "intradiscal pressure is up to 11x greater when seated vs lying down?' is true.
Step-by-step explanation:
The difference in intradiscal pressure between sitting and lying down is a well-documented phenomenon. When seated, especially in a slouched or unsupported posture, the spine experiences increased pressure on the intervertebral discs. This is primarily due to the compressive forces exerted on the spinal column in a seated position.
The intervertebral discs act as cushions between the vertebrae, and when subjected to the load of body weight in a seated position, the pressure within these discs can significantly increase.
Studies have shown that the magnitude of intradiscal pressure can be up to 11 times greater when sitting compared to lying down. This increased pressure can contribute to various spinal issues, including discomfort, stiffness, and the risk of developing conditions like herniated discs.
Therefore, maintaining good posture and taking breaks to stand or stretch during prolonged periods of sitting is essential to mitigate the adverse effects of elevated intradiscal pressure and promote spinal health.
Therefore, the given statement "intradiscal pressure is up to 11x greater when seated vs lying down?' is true.