Lee Si-young showcases peak fitness with 5.9kg body fat and 27kg muscle mass
Actress Lee Si-young shares impressive InBody results, revealing significant muscle gain and fat loss through her dedicated fitness regimen.
Actress Lee Si-young has demonstrated her exceptional ability to maintain a toned physique by revealing her latest InBody test results. Her impressive body composition figures and disciplined fitness habits, which defy her mid-40s age, have earned her praise as a model of dedicated self-management.

On the 20th, Lee posted several photos to her SNS with the caption, "In a world that is already difficult, why do I fight with myself every day? Thank you, Hulk Teacher, for letting me achieve a mental victory every day quite often."
The released photos include her recent InBody results and shots taken following a workout. According to the data as of the 15th, Lee's weight was 54.6kg, skeletal muscle mass was 27.0kg, and body fat mass was 5.9kg. These figures highlight her high level of physical conditioning, characterized by balanced muscle mass and low body fat.
Lee also provided a direct comparison to her previous records to showcase her progress. During a measurement last February, her weight was 52.7kg, skeletal muscle mass was 23.6kg, and body fat mass was 9.4kg. Over the approximately five-month period, she achieved a significant increase in skeletal muscle mass while simultaneously decreasing her body fat. The slight increase in total weight is attributed to muscle gain rather than fat, reflecting the success of her systematic weight training.
In the workout photos, her defined abs and toned shoulder and arm muscles are prominently visible. Her healthy physique and balanced muscle development, the result of long-term consistent training, underscore her personal philosophy of fitness, which includes boxing and marathons alongside her acting career.
Lee has long been recognized as a leading "fitness enthusiast" in the entertainment industry. Having previously competed as a boxer and won awards in various competitions, she maintains a healthy lifestyle through a diverse range of activities, including marathons, hiking, and weight training. By regularly sharing her fitness journey and daily life on SNS, she is credited with positively influencing the spread of a healthy self-management culture.
Recently, the pop culture scene has seen the rise of "Healthy Pleasure," a trend that prioritizes muscle strength, physical stamina, and overall health over mere thinness. As InBody tests and muscle mass management become key indicators of personal health, Lee is garnering significant attention for focusing on body composition improvement rather than just the number on the scale.
Lee married in 2017 and has a son. Following her divorce last year, she has been building a new chapter of her life. After deciding to undergo embryo transfer, she gave birth to her second daughter this past January. She is currently balancing her acting career and consistent exercise routine while raising her two children.
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