Through the Roman chair, you can exercise three target muscles: erector spinae gluteus maximus and hamstring (the back of thigh). Although you can exercise three target muscles, I only recommend that you use the Roman chair to exercise erector spinae. I suggest that you don't use the Roman chair to exercise your gluteal muscles and hamstring muscles (the back of your thigh). Why? First of all, let's briefly analyze the structural principle of this action. Roman chair exercise, hip and hamstring muscles (rear thigh)-not recommended.

Usually people who do this exercise will adjust the height of the Roman chair to be parallel to the pubic bone (more than 90% people do this), and then do this action with the hip joint as the axis. In the process of exercise, the active muscles are the hips and the back of thighs, which can not be effectively and safely exercised to the back.

Reasons for non-recommendation:

Although this method can exercise the thighs and buttocks well, it needs to exert great pressure on the lumbar spine. If you want to exercise your hips and the back of your thighs, you will have better and more appropriate movements to complete, and you don't need to add lumbar vertebrae to complete the exercise of your thighs and buttocks.