Ab Coaster! The Ab Coaster uses a weight-bearing design so that you can tone your core easily. It engages you core muscles all throughout the workout so you are continuously contracting those key muscles. Another benefit is that the seat rotates freely. This will allow you to target other areas, like your obliques, ensuring a full abdominal workout. #fitnesstips #tips #fitnessmotivation #health #healthylifestyle #palmcoast #palmcoastflorida | MPower Fitness