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Updated: Aug 23, 2026

Studying the Neural Basis of Adaptive Locomotor Behavior in Insects
Published on: April 13, 2011
Biomechanical analysis of Oligochaeta crawling
Dino Accoto1, Piero Castrataro, Paolo Dario
1CRIM Lab., Polo Sant'Anna Valdera, Scuola Superiore Sant'Anna, Viale R. Piaggio, 34, 56025 Pontedera (PI), Italy.
Abstract:
Hydrostatic skeletons, such as that of Oligochaeta and Hirudinea, allow the locomotion of animals with soft segmented bodies. In this paper crawling of Oligochaeta, and in particular that of earthworm (Lumbricus terrestris), is analyzed from a biomechanical point of view, starting from the experimental kinematic description of deformations coupled with a simple friction model. The analysis is able to predict crawling velocity with an error of about 15% with respect to the experimental measured values. Also muscular stress during locomotion is evaluated and found to be compatible with biological values.
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