13. What health-related fitness refers to the ability of the muscle or group of muscles to sustain repeated contractions against resistance for an extended period of time? A. flexibility B. muscular strength C. muscular endurance D. cardiovascular endurance V 8 a 14. Which of the following is NOT a health-related fitness test? A. sit-up B. push-up C. sit and reach D. stick-drop-test 8 15. Which of the following would not be a benefit of walking? A. builds aerobic fitness B. lowers blood pressures C. it is a high impact exercise D. helps with weight management 00 O DOO MOUY TIEL​