See also Exercise Basics
What is it the best exercise
The best exercise – what is it and how do you know if you are utilizing it? Unfortunately, there isn’t one best answer to this question.
Generally speaking the best exercise is the one you enjoy doing. If you like to bike but do not like to jog, naturally you should not force yourself to jog.
It is more important to stick with exercises you enjoy; this factor dramatically increases the likelihood of you sticking with your program.
Setting goals for your exercise program will also help you decide which is the best exercise.
See also Suggestions For Workouts
The exercise should match what you are trying to accomplish.
For example, if your goal is to run the next 5k you need to focus your efforts on aerobic training, the majority being running.