The term 'GYMNASTICS fixture' can be broken down into two words: 'HORSE' (5 letters) and 'GYMNASTICS'. HORSE is a type of apparatus used in GYMNASTICS, which consists of a padded leather or plastic surface shaped like a HORSE, with two handles on either side. It is used to perform various exercises such as handstands, leaps, and other acrobatic movements. GYMNASTICS is a sport that involves physical strength, flexibility, agility, coordination, and balance. It is an Olympic sport and is practiced by both men and women.