Utting a demand on muscles repeatedly by making them work harder is . a. only effective for increasing muscle endurance b. causes overtraining and is an ineffective method for adding muscle tissue. c. only effective for increasing muscle strength d. the most effective, safe way for athletes to add muscle tissue. e. effective for increasing muscle tissue when combined with tripling protein intake

What is the difference between muscular strength and muscular endurance? a. strength refers to mobility of joints, while endurance refers to muscular force. b. strength refers to percentage of body fat, while endurance refers to sustaining activity over time. c. strength refers to muscular force, while endurance refers to sustaining activity over time. d. strength refers to the quality of physical performance, while endurance refers to mobility of joints.

per vehicle mile, motorcyclists are times more likely to die in a crash than passenger car occupants.

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