abstract:Stringhalt is a sudden flexion of one or both hind legs in the horse, most easily seen while the horse is walking or trotting. It is most evident when the horse is backing up slowly, turning on the affected leg, or suddenly frightened.
N
a sudden spasmodic lifting of the hind leg of a horse, resulting from abnormal contraction of the flexor muscles of the hock (马的)跛行症 (Also called springhalt)
[vet science]