When you combine running and weight training, you get the best of both worlds. Running with weights helps to develop the fast twitch muscle fibers in your body that contribute to strength and size. Running, on the other hand, contributes to the development of slow twitch muscle fibers that contribute to your stamina and endurance.
A fitness program that combines running and lifting weights allows you to work on both your strength and stamina, thereby leading to more rounded overall physical development.
The most frequent question that is asked by people is whether they should be running and lifting on the same day. Well, the answer differs based on what you are trying to achieve.
If you are looking to increase your general overall fitness, it is recommended that you perform running and weight training on different days. This will allow you to perform both activities to your full potential without overtaxing your body. Based on what your requirements are you could opt for one of the following splits:
As you can see, all these programs emphasize running and weight training on separate days. However, there is one exception to this rule. If you are looking to maximize fat burn in the shortest possible span of time, you should consider running and lifting on the same day. This is because it has been seen that performing cardio after weight training sends your body's fat burning ability into overdrive. However, do keep in mind that such an exercise program will be very taxing and you may not be able to sustain it for very long.