This week’s episode is a repost from the Adaptive Zone Podcast, hosted by Matthew Boyd. Matt is a physiotherapist and running coach who specializes in helping runners overcome injury while setting new PRs. His podcast addresses runners and triathletes to help them move from injury and rehabilitation into performance. On the podcast Matt gives Jason a hypothetical case study for “Carrie”, a marathoner with a 3:48 PR who is looking to go sub-3:45 but can’t quite seem to get there. She runs 2 marathons each year and averages between 40 and 60 km (25-37 miles) each week. Matthew and Jason look at how Carrie’s training can change moving forward to help her earn a new personal best in the marathon. While they focus on two possible overarching changes in training, we also dive into the details, including: Why time away from the marathon can make you faster The difference between fast and hard running How both mental and physical recovery can help you improve The principle of specificity in race training Why hill workouts prepare you run faster on the flats Treating racing as a skill that can be improved Our case study is applicable to the training of so many runners - you’re bound to learn something that helps you improve! Links & Resources from the Show: Learn more about Matt Listen to the Adaptive Zone podcast Learn more about how to engineer a marathon PR Let me help you reach your goals Thank You Previnex! We’re supported by our newest partner, Previnex. After resisting most supplements for the better part of my life, I’m cautiously changing my tune. I’m less than a year from being a Masters runner and in my personal life, I’m optimizing for longevity. I want to be my healthiest self for as long as possible and I’m excited to partner with Previnex to make that happen. Previnex uses the most bioavailable, clinically tested ingredients, the optimal form and dose of each ingredient, pharmaceutical grade manufacturing, testing of raw ingredients and finished products. For every purchase you make, they also donate vitamins to kids in need. I’ve been taking their Immune Support and multivitamin over the last month and  I feel great. I have more energy and clarity, not to mention peace of mind that I’m giving my body what it needs.  I believe Previnex works and I hope you experience the same benefits as I do. Use code jason15 for 15% off your order at Previnex! Thank You GOODR! If you watch my videos on YouTube you know that I’ve been wearing Goodr sunglasses for nearly a decade. They’re super affordable - starting at only $25, made for running so they stay on your face, and the styles are just wild. They’re also a 100% Carbon Neutral company, meaning they offset all of their carbon emissions, and they donate 1% of their profits to environmental causes.  Goodr offers a 30-day money back guarantee and 100% satisfaction but I know you’ll find a pair you love from the hundreds of styles they have. Find yours here at Goodr to get free shipping!