The important role of fatty infiltration of skeletal muscle in aging: skeletal muscle function, pathological mechanisms, and intervention

This review explores the various biological changes that occur during the aging process, elucidating the fundamental pathological mechanisms leading to a decline in muscle integrity and functionality. A primary focus of the review is the occurrence of fat infiltration within skeletal muscle, a phenomenon that becomes increasingly prevalent with advancing age. This study assesses the implications of fat infiltration on skeletal muscle performance, along with the regulatory signaling mechanisms potentially influenced by fat accumulation. Furthermore, it addresses a variety of intervention strategies aimed at alleviating these age-related changes, including nutritional supplements, exercise regimens, and pharmacological treatments. By integrating current findings in the field and addressing existing challenges, this review aims to conduct an in-depth exploration of the intricate connection between aging and skeletal muscle health, with the goal of guiding future research and clinical practices to improve the quality of life for older adults.