Busting the “Blow Up” Myth
Contrary to popular belief, horses don’t “blow up” during the cinching process so that the cinch isn’t tight. First of all, the cinch goes across a ring of bone, which a horse can’t really expand. Secondly, horses don’t have the ability to take an action now that leads to a different outcome in the future.
Rather, a gradual loosening of the cinch may be caused by compression of the saddle, saddle pad, your horse’s haircoat, and muscle contraction as your horse works.
Horses that have been gut-wrenched (suffered a sudden tightening of the cinch) will learn to flinch at any cinch tightening; this is often mistaken for “blowing up.” If I punched you in the stomach every time I walked up to you, you’d soon learn to flinch at my approach.
Contrary to popular belief, horses don’t “blow up” during the cinching process so that the cinch isn’t tight.