Fig. 5
From: Geckos decouple fore- and hind limb kinematics in response to changes in incline
Schematic representation of measured variables. Markers 1-3 represent the body markers cranially, mid-way and caudually along the mid-line of the animal. Markers 4 and 5 represent the metacarpalphalangeal (MCP) and metatarsalphalangeal (MTP) joints respectively. L represents the virtual leg length between the centre of mass and the MCP and MTP. e represents the elevation angle along the medio-lateral and vertical axes, whilst the azimuth (not shown in the 2D figure) is the angle between the medio-lateral and fore-aft axes