I have a client who is 125 lbs with 25% body fat, she is toned and lean except for her mid section. We do Pilates ab series and other Pilates excercises, ab machines, crunches, full sit ups with weights, and we’ve gotten into hoola hooping, still this is where most of her problem area is. Are there any different things we can do? Or some dietary change that may help?
Change would be good for her but it needs to monitored and done with care.
Diet is a great place to start.
Interval running or changing the speeds along with inclines are options.
Try changing her whole routine for 6 to 8 weeks. I always felt this was a fun time for my client to try some new exercises. I always felt this was a good time for me as a trainer to get out of my mold of exercises and challenge myself.
Just a few ideas would be like trying Insanity type workouts, P90X, Kettlebells, TRX has some fun suspension trainers and Rip trainers, different forms of functional training (ropes, bands), crossfit training, Brick training (triathlon) like biking to running, boxing or whatever you want to come up with. Core training does involve rotational movements (which does present more caution also).
Changing the weights and reps are always the easiest things to do, but something new can be fun if you introduce it with enthusiam. You have to believe in the product or exercise you are introducing also. I hope this helps.