Core Strengthening Exercise with Stability Ball - Illustrated Guide #211439 (License: Personal Use)

The illustration depicts a woman in athletic wear performing a supine stability ball press-lying on her back with knees bent, arms extended upward holding a large yellow stability ball. Her posture emphasizes core engagement, neutral spine alignment, and controlled movement ideal for strengthening abdominal and shoulder muscles. The soft gradient background and clean vector style enhance focus on technique and form.

Used on fitness blogs, physical therapy resources, or home workout guides to visually explain core exercises; targets users searching for beginner-friendly stability ball routines or posture improvement techniques.