9. Cardo does jogging, running and dancing because he wants to improve his cardio vascular endurance. What principle of physical fitness does he manifest? A. Principle of Overload B. Principle of Progression Oc. Principle of Reversibility D. Principle of Specificity C. 10. Which of the following given statements is true about Principles of Reversibility? A. The benefits of training are lost with prolonged periods without training. B. Repeatedly practicing a skill or a series of movements past required performance C. Exposing the body to an entirely new stimulus creates consistent performance enhancements D. To ensure that results will continue to improve over time, the degree of the training intensity must continually increase above the adapted work load. 11. Which part of the exercise program stimulates beneficial adaptation when performed regularly? A. Cool-down B. Exercise load C. Warm-up D. Stretching​