linguistic:paraphrasing
Health issues

Handling, riding and driving horses have inherent risks. Horses are large prey animals with a well-developed flight or fight instinct able to move quickly and unexpectedly. When mounted, the rider's head may be up to 4 m (13 ft) from the ground, and the horse may travel at a speed of up to 65 km/h (40 mph). The injuries observed range from very minor injuries to fatalities.

A study in Germany reported that the relative risk of injury from riding a horse, compared to riding a bicycle, was 9 times higher for adolescents and 5.6 times higher for younger children, but that riding a horse was less risky than riding a moped. In Victoria, Australia, a search of state records found that equestrian sports had the third highest incidence of serious injury, after motor sports and power boating. In Greece, an analysis of a national registry estimated the incidence of equestrian injury to be 21 per 100,000 person-years for farming and equestrian sports combined, and 160 times higher for horse racing personnel. Other findings noted that helmets likely prevent traumatic brain injuries.

In the United States each year an estimated 30 million people ride horses, resulting in 50,000 emergency department visits (1 visit per 600 riders per year). A survey of 679 equestrians in Oregon, Washington and Idaho estimated that at some time in their equestrian career one in five will be seriously injured, resulting in hospitalization, surgery or long-term disability. Among survey respondents, novice equestrians had an incidence of any injury that was threefold over intermediates, fivefold over advanced equestrians, and nearly eightfold over professionals. Approximately 100 hours of experience are required to achieve a substantial decline in the risk of injury. The survey authors conclude that efforts to prevent equestrian injury should focus on novice equestrians.