Fig. 1 | Scientific Reports

Fig. 1

From: Greater muscle electrode distance and fat mass affect motor units identification from high-density surface EMG in the vastus lateralis muscle

Fig. 1

Violin plots of the number of identified MU across target forces. (a) Distribution of MU for the entire cohort. The Friedman test revealed significant differences between 70% MVF and 50%, 35%, and 15% MVF (**, p < 0.001), and between 50% MVF and 35% and 15% MVF (#, p < 0.05). (b) Distribution of identified MU across target forces, grouped by age. No significant differences were observed between young and older adults. (c) Distribution of MU across target forces, grouped by sex. Females exhibited a consistently lower number of identified MU at all target forces (**, p < 0.001). Within each graph, the dashed lines represent the 25th and 75th percentile, while the black line indicates the median value.

Back to article page