What training principle states that you must continue to exercise to maintain fitness?
balance
overload
progression
reversibility

The training principle states that you must continue to exercise to maintain fitness is reversibility. This principle states that if the mobility training is ceased, the ranges of movement will decline over time or if you stop working out, you will lose the effects of training. Regular use of mobility exercises is crucial for improvement.

answer; i believe the correct answer is ( mediation);

c. the runner should sprint as fast as possible to the finish line.