Fig. 3From: Neck Muscle EMG-Force Relationship and Its Reliability During Isometric ContractionsFinal EMG-force relationship models. Solid lines denote the fitted regression line on the sampled data points (gray squares). Inner and outer dotted lines mark the 95% confidence interval of the fitted lines computed via the delta method, and the 95% prediction interval generated via parametric bootstrap with 10,000 replicates, respectivelyBack to article page