Figure 3From: Behaviour of motor unit action potential rate, estimated from surface EMG, as a measure of muscle activation levelRelation between number of active MUs and both estimated MR and RMS in simulated conditions. Upper graphs show the relations when MUs were restricted to be located within detection area of electrode. Lower graphs show the relations when MUs were located throughout the whole muscle. Scales of the y-axis are the same in both RMS graphs.Back to article page