Epidemiologic and mechanical studies have supported the idea that repeated lumbar flexion and extension can lead to stress fractures of the pars interarticularis and subsequent spondylolisthesis.

• 流行病学和力学研究支持这个观点，认为腰部的反复屈伸可以使峡部产生应力性骨折，进而导致脊椎前移。