This week, we’re back at Puma HQ in Boston to delve into the science of running fast. What is running efficiency, how is it measured and how do we improve it? How much quicker can shoes actually help you run and do they work for any runner? We find out all the answers from lab specialist, Izzy as well as going through Rose’s own lab report which reveals how fast she could run a marathon in the new Puma race shoes.  If you’re enjoying our conversations, please do us a big favour and leave us a rating on Spotify/Apple. You can also follow us on Instagram, TikTok and YouTube: @5mileseasy. A big thanks to our sponsors for this episode: VELOFORTE: if you’re looking for a natural way to fuel your training with real ingredients, no artificial nasties and no compromise on taste, Veloforte is for you. Veloforte has an incredible range of kitchen crafted bars, shakes and chews to power your performance and provide an optimal balance of essential ingredients to look after your overall wellness. Head to veloforte.com to check out the full range and use code 5MILES for 30% off. PUMA RUNNING: From easy runs to race day, Puma has you covered from head to toe. And the race day shoe that everyone is talking about? The new Puma Fast-R Nitro Elite 2. Built to break your PBs, the Fast-R2 has a full carbon plate and super responsive NITRO™ ELITE foam technology for unbeatable speed, propulsion and cushioning. To get 20% off, use the code 5ME20 at uk.puma.com Hosted on Acast. See acast.com/privacy for more information.