Everything from training to fueling has predominantly been researched on men and written about by men. Women’s hormonal variations tend to skew research data so those results are often thrown out. As a professional triathlete, Dr. Stacy Sims recognized that she was poorly served by the same recommendations that male athletes were getting. So she set out to change that through her work.  She has written a book called ROAR: How to Match Your Food and Fitness to Your Female Physiology for Optimum Performance, Great Health, and a Strong, Lean Body For Life where she breaks down her message that “women are not small men”. Women can learn to cater their training, nutrition, and hydration when they understand the changes they go though in their cycles. You can get an introduction to her work to the now famous TED Talk titled "Women are Not Small Men". In our conversation today, we talk about:  Nutrition recommendations throughout a menstrual cycle and different phases of life RED-S syndrome with strategies for prevention and treatment Changes that women undergo during peri and post menopause Common differences between men and women in training and nutrition The future of exercise physiology research  Links & Resources from the Show:  Learn about courses and coaching resources from Dr. Stacy Sims Follow her on Instagram and Facebook WILD.AI coaching platform High Performance Sport New Zealand organization Kathryn Ackerman at Boston Children's Hospital  Thank you to XOSKIN for sponsoring this episode, who’s offering 20% off with code ‘SR’ at checkout! I was introduced to this company a few months ago and have been impressed with the quality of the shorts, socks, and shirt that I’ve been wearing. They’re soon launching a men’s base liner and women’s lightweight shorts. To be the first to know when the new items are launched, follow them on social media at @xoskinusa. XOSKIN is the only seamless athletic apparel brand in the United States, using 3-dimensional knit structures and their patented materials (PTFE and Copper) to create apparel with superior wicking and drying capabilities that work in all kinds of environments and conditions. Their apparel has been used in some of the most challenging races in the world, from Death Valley in the middle of summer, to the sub-zero temperatures of the Arctic.  XOSKIN’s material feels great against the skin and the fit is so comfortable you’ll forget you’re even wearing it.  Their patented materials are your best defense against chafing, blisters, hot spots and odor.  Unlike most technology in athletic apparel which is gone after a few washes, XOSKIN’s RapiDriCopper™ technology is molecularly boned to the fiber and won’t wash out. Be sure to check out XOSKIN to see all of their shirts, tights, socks, compression sleeves, and more. Their clothes are made for both men and women so you’re sure to find something that suits your needs. Use code SR (not case sensitive) to get 20% off your order!

192. Dr. Stacy Sims On Female Physiology and Training Differences Between the Sexes

Running and coaching tips for beginner and advanced runners with Coach Jason Fitzgerald. Featuring guests like Nick Symmonds and Shalane Flanagan, listeners will learn how to race faster, stay healthy, prevent running injuries, and get stronger in this informative and fun podcast.

Sports

Fitness

Health & Fitness

Running

Runners ask all the time: How should I fit strength training into my endurance goals, and how can I get as strong as possible with limited time? Holly Martin is a personal fitness trainer and run coach based in Nashville, TN who specializes in time-efficient circuit training and individually tailored run programs. Holly comes from a diverse background of professional ballet, ultramarathon running, and 10 years of experience in CrossFit. She’s finished many ultra marathons, including two 100 milers. In this episode, Holly and I talk about:  Strength training for ultra runners to prevent injury and improve endurance Single leg work to reveal weaknesses, imbalances, and poor movement patterns Proper mechanics and activation of certain areas, particularly for runners with weak glutes or other imbalances Purposeful workouts over working out for appearance Strength training for trail runners, focusing on heavy lifts and single leg exercises Alternating between heavier weights and technical work like agility to improve power and explosiveness Quality over quantity in strength training while training for an ultra-marathon When to modify or cut back on strength training for runners based on hunger, fatigue, and form Matching strength training to current fitness level and adjusting as needed in the final two months before the race Enjoying the training process for an ultra-marathon, rather than solely focusing on numbers and metrics Avoiding technical or skill-based movements in the gym that don't directly benefit running Mobility work and static stretching for runners who experience tightness or muscle boundness after training  This is a must-listen episode for an ultra runner who knows they need to step up their strength training game in an approachable way. Links & Resources from the Show:  Holly Martin's Patreon Holly on YouTube Holly's website Holly on Instagram Learn to lift weights like elite runners.   Thank you 2Before! We are supported by 2Before, a powerful sports supplement made from New Zealand Blackcurrants designed to increase endurance, manage inflammation, support immunity, and promote adaptation. 2Before helps to boost performance by increasing blood flow, making it more efficient for the body to pump oxygenated nutrient-rich blood into the muscles. So, if you want to try to boost your performance and immune system, use code JASON for 30% off 20 packs and multi-serve packs at 2Before.com. Thank you to 2Before for supporting Strength Running! Thank you AG1! We’re also supported by AG1, the greens superfood mix. This is a category-leading greens mix that has 75 vitamins and minerals, prebiotics, probiotics, antioxidants, and adaptogens. It’s recommended by professional athletes and has over 7,000 positive reviews. One scoop per day is what I’ve been doing to help me fill in any nutrition gaps in my diet. It also provide a nice boost of energy and focus throughout the day. With all 3 of my kids in school, I know I need to support my immune system or else I’m getting sick and can’t train. I also love that AG1 has changed over the last decade. They’ve made 53 improvements to the formula based on the latest research to make these nutrients more absorbable and rigorous with the 3rd party testing that they do. For our listeners, they are offering a year’s worth of free Vitamin D and 5 free travel packs of AG1 with your first purchase. You can sign up for single shipment or for a monthly drop – the choice is yours. Check out AG1 to redeem your offer today.

Ultrarunning + Strength Training: How to Get Strong and Gain Endurance with Coach Holly Martin

The running world gets to watch in awe as elites set new records and perform incredible feats. But it’s not all rainbows and unicorns for these athletes. World record holders face injuries and challenges, too. Charlie Lawrence set the record in the 50-mile distance in 2023, clocking in at 4:48:21. That’s an unbelievable average of 5:46 per mile. Charlie also ran his marathon personal record of 2:16 while qualifying for the US Olympic Trials Marathon for the second time. In this episode, Charlie and I talk about:  The glute injury and hip labral tear that led Charlie to pull out of the 2024 Olympic Marathon Trials The emotions behind dropping out of the Trials How a series of injuries in 2024 led Charlie to take almost 3 months off of running The treatment and recovery Charlie applied to heal from the injuries, including aqua jogging and pool running Using PRP (platelet rich plasma) and a levering off-load device on the treadmill to aid recovery An aggressive approach to ultra training and the mentality needed to make it work Being proactive in injury prevention, from foam rolling to activation work How Charlie trained to set a 50 mile World Record at a 5:46/mile average pace Charlie’s fueling strategies for ultrarunning and a World Record What running goals Charlie wants to focus on next  This is an inspiring episode for runners of any distance who could use a realistic take on performance and recovery from an elite runner. Links & Resources from the Show:  Charlie on Instagram Get strategies to prevent injury. Let me help you with your training!  Thank you Previnex! After resisting most supplements for the better part of my life, I’m cautiously changing my tune. I’m now 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. Their new Muscle Health Plus is something I'm now taking. Turning 40 - and having a thin frame - has made me realize that I need to prioritize lean muscle mass to stay healthy and age well. Muscle Health Plus has creatine, essential and branched chain amino acids, and it's designed in a way to maximize protein synthesis and the absorption of amino acids. Muscle Health Plus will help you prevent muscle damage, which is particularly important for aging runners who want to protect themselves from muscle loss and recover faster after hard workouts. As is true for all of their products, Previnex adheres to the highest of standards: their ingredients are clinically proven to do what they say they’re going to do. Previnex offers a 30-day money back guarantee. If you don't feel the benefits of their product, you get your money back no questions asked. With their focus on quality and customer satisfaction, I hope you’ll try it! Use code jason15 for 15% off your first order at Previnex! Thank you LMNT! A big thanks to DrinkLMNT for their support of this episode! They make electrolyte drinks for athletes and low-carb folks with no sugar, artificial ingredients, or colors. They are offering a free gift with your purchase at DrinkLMNT. And this does NOT have to be your first purchase. You’ll get a sample pack with every flavor so you can try them all before deciding what you like best.  DrinkLMNT's products have some of the highest sodium concentrations that you can find. Anybody who runs a lot knows that sodium, as well as other electrolytes like magnesium and potassium, are essential to our performance and how we feel throughout the day. If you’re not familiar, LMNT is my favorite way to hydrate. They make electrolytes for athletes and low-carb folks with no Sugar, artificial ingredients, or colors. I’m now in the habit of giving away boxes of LMNT at group runs around Denver and Boulder and everyone loves this stuff. Boost your performance and your recovery with LMNT. They’re the exclusive hydration partner to Team USA Weightlifting and quite a few professional baseball, hockey, and basketball teams are on regular subscriptions. So check out DrinkLMNT to get a free sampler pack and get your hydration optimized for the upcoming season.  

How 50mi World Record Holder Charlie Lawrence Treats Serious Injuries, Fuels his Ultras, and More

The midstance phase of a running stride is a crucial element of running form, but many runners are ignoring it. If you have weaknesses, imbalances, or poor movement patterns, this is the part of the gait cycle that will show it. Chris Johnson, DPT is a Seattle-based physical therapist, performance coach, entrepreneur, and multiple time Kona IRONMAN qualifier who shares how midstance affects your running performance and how you can improve it. In this episode, Chris and I talk about:   Midstance importance in running mechanics and injury prevention   The impact midstance has on muscles and running form   Common problems in midstance technique from knees to hips   The gluteus medius muscle, a common problem area for runners   Training the gluteus maximus and hip abductors for running mechanics   How to train the midstance for stronger running   Single leg exercises for runners with injuries   “Movement snacks” for runners: simple movements throughout the day to help runners improve midstance   This is an excellent episode for any runner who’s considering how their running form plays into their performance, even beyond midstance mechanics. Links & Resources from the Show:   Chris Johnson’s newsletter   Chris Johnson on Instagram   Chris Johnson’s website   Run easier and more powerfully with these form cues   Thank you 2Before! We are supported by 2Before, a powerful sports supplement made from New Zealand Blackcurrants designed to increase endurance, manage inflammation, support immunity, and promote adaptation. 2Before helps to boost performance by increasing blood flow, making it more efficient for the body to pump oxygenated nutrient-rich blood into the muscles.  If you want to boost your performance and immune system, use code JASON for 30% off 20 packs and multi-serve packs at 2Before.com. Thank you to 2Before for supporting Strength Running!   Thank you MOBO Board Invented by renowned physical therapist Jay Dicharry, MOBO helps you stabilize your stance with an innovative rocker board that’s set up on two fins. The design effectively forces you to drive your big toe into the board to improve your stability. I was pretty arrogant going into my first session on the MOBO Board. How hard can it be to balance, right? Well, I was humbled pretty quickly! Even if you’re a good runner, better balance, stability, and proprioception is going to help you have a more powerful stride and prevent more running injuries. You’ll learn how to improve the efficiency of the kinetic chain from your hip to your big toe. Because as Jay likes to say, it’s not just how strong you are, but how well you use that strength. I was recently at a weekend physical therapy workshop (lol I was the only running coach) and learned how important (and rare) this simple movement is. Save 10% with code STRENGTHRUN10 at checkout at moboboard.com.

How to Stay Healthy By Strengthening Your Midstance, with Coach Chris Johnson, DPT

If you're starting to wonder whether your running form is helping or hurting your performance, we’re sharing two important tests that can help you better conceptualize how your body moves through space. Dr. Matthew Silver is a doctor of physical therapy, coach, cross country athlete, founder of Alpha Project Phyzio and Performance in Maryland, and author of the book "Built to Run." We spend a lot of time on foot strike, the problems associated with over-striding, and the many solutions for resolving this form error. In this episode, Matthew and I talk about:  Testing running form through the jump test: How to do it to find the optimal jumping pace Running cadence and its relationship to form and performance Testing running form through the heel strike test: How to feel the difference between landing on the ball of the foot and the heel (which can lead to potential injury) Strength training and plyometric exercises for runners for improved tendon efficiency and cadence Running form and footstrike mechanics, including heel striking and overstriding Running form and balance during sprinting: Don't run like a ballerina Running form and power training with dumbbells Focusing on simplicity and effectiveness in strength training: the "big three" exercises and the "KISS method"  If you’re already wondering whether your current recovery tactics are helping you perform better and stay healthy, this episode will give you great recovery strategies to start implementing today. Links & Resources from the Show:  Dr. Matthew Silver on Instagram Alpha Project Phyzio on Instagram Read Matthew's book: Built to Run Run easier and more powerfully with these form cues  Thank you Previnex! After resisting most supplements for the better part of my life, I’m cautiously changing my tune. I’m now 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. Their new Muscle Health Plus is something I'm now taking. Turning 40 - and having a thin frame - has made me realize that I need to prioritize lean muscle mass to stay healthy and age well. Muscle Health Plus has creatine, essential and branched chain amino acids, and it's designed in a way to maximize protein synthesis and the absorption of amino acids. Muscle Health Plus will help you prevent muscle damage, which is particularly important for aging runners who want to protect themselves from muscle loss and recover faster after hard workouts. As is true for all of their products, Previnex adheres to the highest of standards: their ingredients are clinically proven to do what they say they’re going to do. Previnex offers a 30-day money back guarantee. If you don't feel the benefits of their product, you get your money back no questions asked. With their focus on quality and customer satisfaction, I hope you’ll try it! Use code jason15 for 15% off your first order at Previnex! Thank you LMNT! A big thanks to DrinkLMNT for their support of this episode! They make electrolyte drinks for athletes and low-carb folks with no sugar, artificial ingredients, or colors. They are offering a free gift with your purchase at DrinkLMNT. And this does NOT have to be your first purchase. You’ll get a sample pack with every flavor so you can try them all before deciding what you like best.  DrinkLMNT's products have some of the highest sodium concentrations that you can find. Anybody who runs a lot knows that sodium, as well as other electrolytes like magnesium and potassium, are essential to our performance and how we feel throughout the day. If you’re not familiar, LMNT is my favorite way to hydrate. They make electrolytes for athletes and low-carb folks with no Sugar, artificial ingredients, or colors. I’m now in the habit of giving away boxes of LMNT at group runs around Denver and Boulder and everyone loves this stuff. Boost your performance and your recovery with LMNT. They’re the exclusive hydration partner to Team USA Weightlifting and quite a few professional baseball, hockey, and basketball teams are on regular subscriptions. So check out DrinkLMNT to get a free sampler pack and get your hydration optimized for the upcoming season.

Running Form Tests, Technique Cues, and Footstrike Patterns with Physical Therapist Matthew Silver

What makes the biggest impact when it comes to recovery strategies and tools for runners?  Dr. Peter Tierney is a health and performance researcher, consultant, and coach who’s worked with many professional sports organizations to help athletes recover effectively from exercise. Peter’s “Big 5” recovery strategies are science-backed and possible for runners to add to their training and lifestyle. In this episode, Peter and I talk about:  Recovery as part of a lifestyle, not just a post-exercise tool. The Big 5 recovery strategies for runners and endurance athletes, and how to use them. Adaptation vs. performance as recovery outcomes in endurance athletes. Tips for better sleep strategies for runners. Nutrition for running recovery. Balancing running, commitments, and life stressors for optimal performance. Hydration and electrolyte balance for runners and the link to recovery. How socializing with friends and family can be an effective recovery tool.  If you’re already wondering whether your current recovery tactics are helping you perform better and stay healthy, this episode will give you great recovery strategies to start implementing today. Links & Resources from the Show:  Peter on Instagram Peter on LinkedIn Peter on X/Twitter Hear 9 pro runner's favorite recovery and prevention tips  Thank you AG1! We’re also supported by AG1, the greens superfood mix. This is a category-leading greens mix that has 75 vitamins and minerals, prebiotics, probiotics, antioxidants, and adaptogens. It’s recommended by professional athletes and has over 7,000 positive reviews. One scoop per day is what I’ve been doing to help me fill in any nutrition gaps in my diet. It also provide a nice boost of energy and focus throughout the day. With all 3 of my kids in school, I know I need to support my immune system or else I’m getting sick and can’t train. I also love that AG1 has changed over the last decade. They’ve made 53 improvements to the formula based on the latest research to make these nutrients more absorbable and rigorous with the 3rd party testing that they do. For our listeners, they are offering a year’s worth of free Vitamin D and 5 free travel packs of AG1 with your first purchase. You can sign up for single shipment or for a monthly drop – the choice is yours. Check out AG1 to redeem your offer today. The Performance Training Journal! The Performance Training Journal is now available on Amazon and debuted as the #4 new release in the running category. Since I started running in 1998, I’ve kept a hardcopy training journal. Holding a tangible log, writing in it daily, and reflecting on the ups and downs of running is a surefire way to improve.  This hardcopy training journal helps you focus on the training metrics that matter, prioritizes a long-term outlook so you don’t take any shortcuts, and maintains your motivation with strategic self-praise. With a no-frills, functional design, the Performance Training Journal includes coaching advice on racing, injury prevention, strength training, and more. It will guide you through race scheduling, how to plan your race morning, the best workouts for endurance runners, and encourage you to track your personal bests over time.  You have the space to make this journal your own whether you’re a new runner or a professional, a trail or road runner, or a mid-distance specialist or ultra marathoner.⁣ So don’t just track your running, learn from it with the Performance Training Journal! Check it out today on Amazon.    

192. Dr. Stacy Sims On Female Physiology and Training Differences Between the Sexes

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