What exercise should be avoided in a Pilates program for a client with spondylolisthesis?

In a Pilates program for a client with spondylolisthesis, it is advisable to avoid exercises that place excessive strain on the lumbar spine or require flexion and extension of the vertebral segments. The semi-circle exercise, which involves movement of the spine and pelvis in a way that could exacerbate instability or discomfort in the lower back, is particularly risky. Spondylolisthesis is characterized by a forward slippage of one vertebra over another, which can be aggravated by exercises that challenge spinal alignment or require significant flexion.

While exercises like the Hundred, Roll Up, and Bridge can be adapted and performed with modifications to ensure safety and support for spinal stability, the semi-circle poses a higher risk due to its inherent movement dynamics. This makes it crucial to choose exercises that promote core stability and avoid those that might lead to further complications or discomfort.