Marzia Prince, Healthy Housewife, fitness trainer, and health expert, comes back with more exercises using the squishy ball. By placing the ball behind your lower, middle, or upper back as you do tiny pulses, you engage different muscles in your core to tone, tighten, and develop the abs you want without a ton of work or even a gym membership.
Marzia Prince's Ball Pulses - Strengthen Your Core and Get Sexy Abs
