Cramping Is Multifactorial, Not Just Sodium

Jonah Rosner is an applied sport scientist who spent 10 years working with athletes and teams from all major American professional team sports, particularly the National Football League.

He's a certified running coach and strength and conditioning specialist and he previously partnered with Nike to run the Nike Running Performance Lab in New York City. You can sign up for his Marathon Science newsletter here.

Jonah was also the sport scientist on hand during a fitness retreat I attended last year where I had my VO2 Max measured. Jonah administered the test, which you can watch on Strength Running's YouTube channel.

In this conversation, we myth-bust around the hottest topics in running:

• Heat training
• How to develop better running economy
• Heart rate Zones
• Why beginners shouldn't worry about Zone 2
• Overpronation
• Electrolytes and sodium consumption

If you like this episode, be sure to listen to Facts vs. Fads: Dr. Nick Tiller on Nasal Strips, Organics, Cupping, Detox Diets, & More.

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A big thanks to LMNT 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 LMNT. 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.

And BIG news! Their newest flavor is now permanently available : LEMONADE SALT!

LMNT'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 LMNT to get a free sampler pack and get your hydration optimized for the upcoming season.