Combines two or more activities in an exercise program. this type of training is designed to enhance fitness, provide needed rest to tired muscles, decrease injuries and eliminate the monotony and burnout of single-activity programs.

Andrew loves to go camping and hiking in the fall. about two weeks after his last camping trip, he noticed an expanding red, target shaped, rash on his arm. to avoid this illness, andrew should have select one: a. boiled his water before drinking. b. avoided contact with ticks. c. avoided contact with fleas found on mice. d. camped only in the spring.