How Much Do You Know About Age-Related Skeletal Muscle Atrophy?

• Age-related skeletal muscle atrophy is muscle group-specific.
• Only a few specific muscles have been investigated in this area.
• A review provides a comprehensive summary of age-related skeletal muscle atrophy in a muscle-specific manner.
• 47 cross-sectional studies were analyzed, including 982 young and 1,003 old individuals.
• Nine muscle groups were studied: elbow extensors, elbow flexors, paraspinals, psoas, hip adductors, hamstrings, quadriceps, dorsiflexors, and triceps surae.
• Muscle-specific atrophy rate was determined for each subcomponent muscle in the hamstrings, quadriceps, and triceps surae.
• There was more than a fivefold difference between the least and most atrophying muscles.
• Muscle activity level, muscle fiber type, sex, and timeline of the aging process all influence muscle-specific atrophy.
• More muscle-specific information is needed to understand functional deficits that develop with aging.
• Muscle-specific interventions can improve the quality of life of aging individuals.

Test your knowledge on age-related skeletal muscle atrophy with this quiz! Learn about the muscle groups that have been investigated, muscle-specific atrophy rates, and the factors that influence muscle atrophy. This quiz will help you understand the need for more muscle-specific information and interventions to improve the quality of life of aging individuals. Keywords: age-related, skeletal muscle atrophy, muscle-specific, muscle groups, atrophy rate, functional deficits, interventions.