Test Troxin Even if you are not going to be competing in any running events that have hills, including hill training is an important part of any running program. Running uphill has the same leg action as when you are sprinting, with your legs lifting high up and driving down with a lot of power. This action builds up a lot of strength and stamina in the muscles apart from strengthening your heart. It will definitely help you when you run on the flats because the amount of effort expended is much lower and so you will find it easier.

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