So just what are instructors referring to when they mention the core? The core consists of the stomach, back, butt, and hips. In Pilates we look at our core muscles as our muscles of strength–they are generally larger muscles and should, therefore, have more power and control.
When we move our arms and legs, the motion should originate in the core. When doing daily tasks where your arms and legs move, try to consider this concept. Think of your arms and shoulders moving from you back. Think of your legs moving from your hips and butt. Let the motion start from your core.