Associate professor Kunihiro Sakuma, Ph.D., currently works at the Research Center for Physical Fitness, Sports and Health in Toyohashi University of Technology. He is a physiologist working in the field of skeletal muscle. He was awarded sports science diploma in 1995 by the University of Tsukuba and started scientific work at the Department of Physiology, Aichi Human Service Center, focusing on the molecular mechanism of congenital muscular dystrophy and normal muscle regeneration. His interest later was turned to the molecular mechanism and the attenuating strategy of sarcopenia (age-related muscle atrophy). Preventing sarcopenia is important for maintaining a high quality of life in the aged population. His opinion is to attenuate sarcopenia by improving autophagic defect using nutrient- and pharmaceutical-based treatments.