Equipment required for engaging in a sport (such as balls, bats, rackets, skis, skates, ropes, weights) and devices for the protection of athletes during their performance (such as masks, gloves, mouth pieces).

The field of medicine concerned with physical fitness and the diagnosis and treatment of injuries sustained in exercise and sports activities.

Illegitimate use of substances for a desired effect in competitive sports. It includes humans and animals.

Expendable and nonexpendable equipment, supplies, apparatus, and instruments that are used in diagnostic, surgical, therapeutic, scientific, and experimental procedures.

Injuries incurred during participation in competitive or non-competitive sports.

Any materials used in providing care specifically in the hospital.

Games in which players use a racquet to hit a ball or similar type object.

Devices which are very resistant to wear and may be used over a long period of time. They include items such as wheelchairs, hospital beds, artificial limbs, etc.

Methods of creating machines and devices.

Devices designed to provide personal protection against injury to individuals exposed to hazards in industry, sports, aviation, or daily activities.

Individuals who have developed skills, physical stamina and strength or participants in SPORTS or other physical activities.

Carrying out of specific physical routines or procedures by one who is trained or skilled in physical activity. Performance is influenced by a combination of physiological, psychological, and socio-cultural factors.