Gosh there are so many. Fix your client’s ankles, and do an abdominal flexion, hold it at the top. To target the lower region, fix your client’s upper body. Then with hips flexed at 90 degrees, simply do an anterior tilt of the pelvis. It’s a small movement, maybe 25-30 degrees. Only do an anterior tilt, novement in the back.
Take care, Danny
Dan is correct, there are too many to count. With my clients, I tend to gravitate towards exercises which force the core muscles to stabilize as external forces challenge proper alignment. For example, I have my client on the ball with head and shoulders, bridged, and then hand them just one dumbbell for a fly. I also love to use the foam roller, have my client lie lengthwise on it, cue them for a neutral spine and have them lift a leg off the ground.
I am sure you will get many more suggestions.
I have many “bests, or favorites,” but I like to work the transverse abdominis muscles by performing the ‘all-4s’ (on hands and knees) hollowing-out and bracing. I also have my clients perform this from a kneeling position where they reach up (I cue them to think of placing something on a top-shelf) while again hollowing-out their abdominal region and holding (3-5 seconds).