
Red Velvet member Seulgi recently captured public attention by sharing photos from a shoot in Bali. Posting on social media with the caption, “Bali was great, though,” she showcased a toned physique and clearly defined "11-line" abs in a bikini. Her slim waistline and muscle definition suggest a high level of consistent, disciplined self-care.
Equipment Pilates: Strengthening the Core and Sculpting Abs

Seulgi has previously shared her dedication to fitness, specifically highlighting her sessions at a Pilates studio. In her workout photos, she is often seen using a "barrel"—a Pilates apparatus featuring an arched, curved surface paired with ladder-like rungs. This equipment is highly effective for stretching the spine, hip joints, and thigh muscles.
When used from a side-standing position, as Seulgi does, the barrel provides an intense workout for the obliques, erector spinae, and core. This targeted engagement helps reduce excess abdominal fat and defines the abdominal muscles. Furthermore, lying along the curve of the apparatus can assist in posture correction, addressing common issues such as rounded shoulders and forward head posture.
Precautions for Those with Spinal Conditions
While equipment Pilates is excellent for core definition, improper intensity or incorrect apparatus settings can lead to muscle imbalances or joint strain. It is crucial to avoid forcing movements or overstretching beyond one's natural limit.
Individuals with a history of lumbar disc herniation should be particularly cautious. Movements that involve deep spinal extension or wide chest opening may exacerbate symptoms. To ensure safety, these exercises should be performed within a limited range of motion and under the guidance of a professional instructor. For those looking to mirror Seulgi’s results, focusing on proper form and gradual progression is the most effective path to a stronger core.
