Figure 5. Skeletal geometry of the running IsK^+/− mouse.

The mouse is running on a treadmill with a mean velocity of 0.52 ms⁻¹. Cineradiography film captured at 250 Hz and data sampling at 50 Hz. A, pattern of limb movement of one mouse. The lines indicate the periods of limb contact with the support. LH, left hindlimb; RF, right forelimb; RH, right hindlimb; LF, left forelimb. B and C, angles of the horizontal semicircular canal and the cervical column to the horizontal earth plane in the same mouse. D, mean (n = 3) vertical displacements of the pelvis, diaphragm, skull, scapula and snout (base of incisors) above the ground.