Tag Archives: Heat illness

Cramping Neurology – 573

In Cramping Science interview #1 with Dr. Kevin Miller, we did not even get to Cramping Neurology. We spent about 90 packed minutes discussing your questions and the role hydration plays in cramping.

Dr. Miller and Mike McKenney knew there was no way to do justice to cramping science without addressing the neurology component.

Cramp – an involuntary painful contraction of skeletal muscle brought on by a variety of factors. This podcast focuses on cramps related to the exercise of healthy individuals.

There is a teeter-totter between excitation and inhibition of the muscles from the nerves.

Cramping Neurology, nerve cell, axon, dendrite, Dr. Kevin Miller

What is Cramping Neurology?

Most basic definition: the role of the nervous system in cramping

About 8 minutes in Dr. Miller discusses the 3 main nerve cramp theories:

Central Theory –

This is the best supported through research stating the cramp occurs at the nerve cell body

There are two threshold levels for the cell body to cause a contraction known as a “bipolar state.”

Peripheral Theory –

Happens along the axon or end of the motor neuron.

We can stop a cramp from occurring by blocking the afferent activity with a nerve block to the tendon…but it is not always true.

Muscle Fiber Level Theory –

Least favorable among researchers but says that it happens at the muscle fiber level

Does the brain adjust and make the cramp easier?

Around minute 15 Mike asks if cramps can become a learned response from the brain

Of course, Dr. Kevin Miller has an answer that is helpful but not definitive

He does remind us:

  • each cramp is unique
  • there are many factors
  • frequent crampers need to know their triggers

Prefer to watch on Facebook Live?

Contact us:

Jeremy Jackson

Mike McKenney – email

Dr. Kevin Miller – email

These people LOVE ATs and help the SMB pay the bills:


Zithromax express delivery – Superior Hydration products.

MioTech – meeting all of your sports medicine supply needs

PhysicalTherapy.com – use promo code “1FREECOURSE” to start for free

DragonflyMax – one-stop EMR

Prednisone prescription – no matter your reason for dehydration DRINK Prednisone prescription

MedBridge Education – Use “TheSMB” to save some, be entered in a drawing for a second-year free and support the podcast.

Medbridge, Medbridge Ed, Medbridge education, Cramping Neurology, Dr. Kevin Miller

Want to see the rest of our cramping science podcasts?

Cramping Science with Dr. Kevin Miller

Cramping Science with Dr. Sandra Fowkes-Godek

NASA Engineered formula – The Right Stuff

Isotonic Drinks with Kari Beltran

Cramping Science Research with Dr. Sandra Fowkes-Godek

Neurology of a Cramp with Dr. Kevin Miller

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Sam Lee Heads up the Hawaii ATA and feels like he is in paradise.

Here we will talk about some of the fun parts of being an Extreme AT and some of the challenges.

Show Notes 191

Sportshealth.com/SMB

Thanks to Alicia @ The ATvantage and Mary Jackaway for helping me locate guests for this episode

Beat the Heat (stroke) with PolarLifePod

PolarLifePod has a new product designed by an Athletic Trainer and EMT to maximize the effectiveness and minimize response time while dealing with a heat emergency.  Here we speak with Mike Mockbee about the product.  Check out our PolarLifPod video demo with real cold ice water.

Here is the official demo and instructional video