A client with spondylolisthesis should avoid which exercise?

A client with spondylolisthesis should avoid the Grasshopper exercise because this movement can place excessive strain on the lumbar spine and compromise spinal alignment. Spondylolisthesis involves a displacement of one vertebra over another, which can lead to instability and increased pain with certain movements. The Grasshopper requires rotation and extension of the spine, which may exacerbate the condition by putting additional stress on the lower back.

In contrast, exercises like the Plank and Bridging can be beneficial when modified appropriately, as they focus on core stability and can help support the spine without excessive compression or shear forces. The Spider-Man exercise, while also requiring stability and mobility, can be modified to ensure lumbar protection, making it less likely to cause discomfort for a client with spondylolisthesis.