Fig. 2
From: Influence of IGF-I serum concentration on muscular regeneration capacity in patients with sarcopenia
Relation of IGF-I serum concentrations and MUNIX (A) and MUSIX values (B) stratified by sex. Legend: Two participants did not tolerate the MUNIX procedure and two MUSIX results had to be excluded from analysis due to unreliable measurement. ß1 = unadjusted regression coefficient, ß2 = regression coefficient adjusted for sex, IGF-I = insulin-like growth factor 1, MUNIX = Motor unit number index, MUSIX = Motor unit size index