Figure 3.

Relationship between EMG and relevance scores. Relationship between the relative EMG amplitude and relevance score for pedalling (a) and walking (b). Each data point from the mean cycle for each participant is shown as a dot. The correlation coefficient and p-value are shown for the pooled data points. Data points for when the relevance scores were greater than the threshold of 0.2 are coloured in blue. The figure highlights that high relevance occurred mostly when the relative EMG amplitude was high. However, there were many instances with high EMG amplitude where relevance was low, meaning that not all phases with high relative EMG amplitude are relevant to participant classification. Of note, there was no high relevance when the EMG amplitude was low. Pearson correlation coefficients were calculated for N = 78. Statistical significance for all correlations was set at p < 0.05.