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    <loc>https://ianperkins.com/articles/lactate-for-performance</loc>
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      <image:title>Articles - Lactate Has Been Getting a Bad Press for Decades. Here Is Why That Matters. - Make it stand out</image:title>
      <image:caption>Lactate is produced and cleared continuously, even at rest. Blood lactate only rises when production outpaces clearance.</image:caption>
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      <image:title>Articles - Lactate Has Been Getting a Bad Press for Decades. Here Is Why That Matters. - Make it stand out</image:title>
      <image:caption>Glucose to pyruvate via glycolysis, essentially ‘carbohydrate breakdown’.</image:caption>
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      <image:title>Articles - Lactate Has Been Getting a Bad Press for Decades. Here Is Why That Matters. - Make it stand out</image:title>
      <image:caption>Taken from Midgley and colleagues (2007). Blood lactate and heart rate responses of a competitive club runner during an incremental exercise test. Zones are indicated by running velocities and HR associated with the lactate threshold (LT) and the lactate turnpoint (LTP). Easy (E), steady (S) and tempo (T).</image:caption>
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      <image:title>Articles - Lactate Has Been Getting a Bad Press for Decades. Here Is Why That Matters. - Make it stand out</image:title>
      <image:caption>Lactate curve comparing youth (n = 25) and pro (n = 36) athletes completing a test. Taken from Michaelides and Parpa (2025)</image:caption>
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      <image:title>Articles - Lactate Has Been Getting a Bad Press for Decades. Here Is Why That Matters. - Make it stand out</image:title>
      <image:caption>5-zone training model, highlight LT1 = aerobic threshold, and LT2 = anaerobic threshold, as well as VO2Max for reference of intensity. Image taken from Bandana Training Club.</image:caption>
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    <loc>https://ianperkins.com/articles/zone2-vs-hiit-mitochondrial-adaptation</loc>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/6487bf1d9e918762dbe66e58/2e752871-8fd1-4e9a-8236-c606827e4e9e/ChatGPT+Image+Sep+4%2C+2025%2C+12_10_12+PM+%281%29.png</image:loc>
      <image:title>Articles - Is Zone 2 Training Hurting Your Progress? Discover Why HIIT May Deliver Faster Results - Make it stand out</image:title>
      <image:caption>Whatever it is, the way you tell your story online can make all the difference.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/6487bf1d9e918762dbe66e58/478ee9c7-ac2e-40a8-9d8e-8e5cd5a3421b/ijms-22-13059-g001.png</image:loc>
      <image:title>Articles - Is Zone 2 Training Hurting Your Progress? Discover Why HIIT May Deliver Faster Results - Make it stand out</image:title>
      <image:caption>Cascade diagram showing how AMPK and PGC-1α activate NRF-1/2 and TFAM to promote mitochondrial biogenesis (Cardanho-Ramos and Morais, 2021)</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/6487bf1d9e918762dbe66e58/2843e89b-b2f5-45da-afd5-1beb4f173207/ChatGPT+Image+Sep+4%2C+2025%2C+01_14_26+PM.png</image:loc>
      <image:title>Articles - Is Zone 2 Training Hurting Your Progress? Discover Why HIIT May Deliver Faster Results</image:title>
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    <loc>https://ianperkins.com/articles/the-impact-of-daytime-napping-on-athletic-performance</loc>
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      <image:title>Articles - The Impact of Daytime Napping on Athletic Performance: A Comprehensive Analysis - Make it stand out</image:title>
      <image:caption>PRISMA Flow Diagram.</image:caption>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/6487bf1d9e918762dbe66e58/21ad7840-86e8-4802-b396-9ab3be8ed802/Forest+Plot+Daytime+Napping.png</image:loc>
      <image:title>Articles - The Impact of Daytime Napping on Athletic Performance: A Comprehensive Analysis - Make it stand out</image:title>
      <image:caption>Forest plot for the impact of daytime napping following normal sleep on highest distance during the 5-m shuttle run test. Std diff standard difference, CI confidence intervals</image:caption>
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      <image:title>Articles - The Impact of Daytime Napping on Athletic Performance: A Comprehensive Analysis - Make it stand out</image:title>
      <image:caption>Forest plot for the impact of daytime napping following normal sleep on muscle force. Std diff standard difference, CI confidence intervals, RH right hand, LH left hand, BS back strength</image:caption>
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      <image:title>Articles - The Impact of Daytime Napping on Athletic Performance: A Comprehensive Analysis - Make it stand out</image:title>
      <image:caption>Whatever it is, the way you tell your story online can make all the difference.</image:caption>
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