These lower back exercises are a great way to strengthen your low back and your core in general. They also help strengthen your glutes, hamstrings, and other pelvic muscles.
The first three lower back exercises are the pelvic tilt, bridging, and the dead bug. These all require you to get your low back into a posterior pelvic tilt which will help strengthen the low back muscles.
Then there is a modified plank, modified side plank, and the bird dog. These require you to get your back in a neutral position, and hold it in that position to help strength the back and core muscles.
The next low back exercise is the prone hip extension and prone swimmer. It’s important to know what your diagnosis is since these might not be appropriate for some injuries.
The last two, pelvic tilts and hip flexion, are on a Swiss ball. You don’t have to use a Swiss or therapy ball, but it will make it more challenging.