Table 1.

Behavioural terms and definitions used to assess dog position and activity during test sessions.

Term	Definition
Lateral Lie Down	Body in contact with ground not supported by legs, side of dog touching the ground/bedding fully45
Sternal Lie Down	Body in contact with ground not supported by legs, sternum touching ground/bedding and hind limbs on either side45
Sit	Front legs straight, rear end lowered and resting on hocks45
Stand	Hind two paws or all four paws on ground and legs upright and extended supporting body46
Walking	Four beat gait, three feet on the ground at any one time45
Trotting	Two beat gait, diagonally opposite legs move together45
Vigorous Activity	Rapid/energetic movement in any direction, including running, bounding, tugging, jumping, rolling around (defined for this study)