Core stabilization exercise training performed on land or in water both could be beneficial in LDH patients and there is no difference between the environments. Implications for Rehabilitation An 8-week core stabilization program performed in water or on land decrease pain level and improve functional status in LDH patients. Both programs seem beneficial to increase health-related quality of life and static endurance of trunk muscles. Core stability exercises could be performed in water as well, no differences were found between methods due to environment ¹⁾