What are some of the reasons for doing physical training? pleasure ? endurance ? strength? peer approval ? flexibility ?

There are many, but Flexibility, Strength and Endurance are your answers if this is multiple choice.

Explanation:

People begin physical training to increase their strength and endurance of course, and to improve their overall health. However while not an ideal reason, many people do take on physical fitness in an effort to gain peer approval, which in the end could be helpful in improving their self image and mental health. Some people also do gain pleasure from physical fitness/exercise, with the release of endorphins during physical activity. Technically all answers to this question could be considered correct but physical improvement will be the main reason for most people whether that be strength, endurance, or flexibility. The secondary reasons will be for mental and spiritual improvement such as peer approval and increase in self image.