Fig. 3: Changes of skeletal muscle mass Z score in children with or without risk of sarcopenia during the study period.

SMM skeletal muscle mass, M0 measurement 0, M2 measurement 2, M6 measurement 6; *: vs. M0, p < 0.05; **:vs. M0, p < 0.005; ###: vs. the equivalent parameter in SMM Z score < -1, p < 0.0005.