where the scale is human

Category: Locomotion

Triangles

Body is divided into 7 segments: 1 head, 2 half torsos, 4 limbs.  Stance is neutral 50/50 weight distribution. Centre of mass (COM) at torso lower apex. Bow divides upper from lower. Pelvis is the saddle connecting rider above and horse below. Muscle control applies single strut, bow and string, tensegrity model.  Pull force to bow or string controls COM and weight shifting in movement direction.  Balance happens when COM is inside the base of support which are the feet.

Foot adhesion

Foot acts as a gravity sucking pad.  Pressure variation is highly dynamic for landings and releases.  Suitable  for horizontal earth climbing.  Landing, releasing, repositioning, landing. Pulling the CoM towards the foot increasing anchoring result… ” ‘pushing’ pads away from the body results in an unstable contact, reflected in a rapid decrease in contact area and thus effortless detachment, whereas ‘pulling’ pads towards the body results in a stable or increasing contact area, and strong attachment.” http://dx.doi.org/10.1098/rstb.2019.0199

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