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. 2014 Nov 13;10(11):e1003944. doi: 10.1371/journal.pcbi.1003944

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© 2014 Elias et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Each bar represents the percentage of intervals (3-s duration windows) with positive (gray) and negative (black) correlation coefficients for each model structure. For Model 1, 80% of intervals (17/21) had positive correlation coefficients, while for Model 2 this proportion was lower than 50% (10/21). Statistically significant difference was observed between the results from the two model structures (Model 1 vs. Model 2, -test, ). These results suggest that reciprocal inhibition may contribute significantly to the “paradoxical” behaviour (negative correlation between COM and muscle fibre length) reported in the literature [29]–[31].

Inline graphic — Each bar represents the percentage of intervals (3-s duration windows) with positive (gray) and negative (black) correlation coefficients for each model structure. For Model 1, 80% of intervals (17/21) had positive correlation coefficients, while for Model 2 this proportion was lower than 50% (10/21). Statistically significant difference was observed between the results from the two model structures (Model 1 vs. Model 2, -test, ). These results suggest that reciprocal inhibition may contribute significantly to the “paradoxical” behaviour (negative correlation between COM and muscle fibre length) reported in the literature [29]–[31].