Characteristics of lower limb skeletal muscles of community-dwelling, elderly women and their relationships with gait function and daily physical activity: a fundamental study for early detection of sarcopenia using quantitative and qualitative evalu

Although all the participants lived independently, 11.3% had an SMI below the sarcopenia threshold, highlighting the need for early prevention. Gastrocnemius muscle parameters were significantly associated with age, physical characteristics, walking function, and activity level. Reduced physical activity may contribute to muscle degeneration and impaired walking even in independent individuals. Combining muscle echo intensity and fascial thickness may enhance muscle quality assessment, aiding in the prevention and early detection of sarcopenia.