Final answer:
The appropriate rest time between sets during exercise depends on the individual's goals and the intensity of the exercise. For muscular endurance and general fitness, rest for 1-2 minutes is recommended, while strength training exercises may require longer rest periods of 3-4 minutes.
Step-by-step explanation:
In general, the appropriate rest time between sets during exercise depends on the individual's goals, fitness level, and the intensity of the exercise. A common guideline is to rest for about 1-2 minutes between sets for exercises targeting muscular endurance and general fitness. However, for strength training exercises that involve heavy weights and lower repetitions, longer rest periods of 3-4 minutes may be more suitable to allow for adequate recovery.