Fig. 3

Box plots of maximum and mean normalized electromyographic activity during (a) 6-meter walking test and (b) five times sit-to-stand test in sarcopenic patients and healthy older adults. Box plots indicate the median (black dot), interquartile range (box edges: 25th-75th percentiles), mean values (black cross), and outliers (circles). Asterisks (*) denote statistically significant differences between groups.