Celebrity trainer Gunnar Peterson — yup, the one who trains the Kardashians, Kate Beckinsale, and the Los Angeles Lakers — wants to help you improve your core workout and make it as effective as ...

Core exercises like side planks, hollow holds, and straight leg-toe touches can help tone your abs. Reducing belly fat can be challenging because the volume of belly fat is heavily dependent on diet.

A strong core helps with posture, balance and stability, and can prevent and reduce back pain. To effectively strengthen your core you need to work the low back, glutes, pelvic floor and the ...