When a normally responsive horse refuses to move, which should be checked first?

When a normally responsive horse refuses to move, checking the bridle and reins first is essential. The bridle and reins directly control the horse's head and neck, and any issues here can significantly affect the horse's willingness to respond to cues. If the reins are too tight or tangled, or if the bridle is improperly fitted or uncomfortable for the horse, it may create a sense of discomfort or restriction, causing the horse to hesitate or refuse to move.

Addressing potential problems with the bridle and reins ensures that the horse can respond freely to the rider's commands without any unnecessary discomfort. This makes it a priority to check these items first before looking at other areas, such as the girth or leader's grip on the lead, which may not be directly affecting the horse's responsiveness.