How much fitter can you get in 8 weeks and does everyone’s running speed and fitness improve at the same rate? If you start at the same level and do the same things in training, would you improve at a similar level?
Well, adidas have challenged Sarah to find out! She is going head to head against keen runner Alice to see whether if they train in exactly the same way for the next 8 weeks, will their 5k times stay the same? Stay tuned to find out!
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