JP Gloria

JP Gloria Hey it's JP! I am a physical therapist and performance coach that specializes with running.

06/03/2026

Pronation is bad ❌

Any type of pronation, particularly calcaneal/heel eversion, is seen as a bad thing.

There are people that see some of it and think of it as something that needs to be “fixed.”

However, it is normal to have it occur as you run.

In fact, this movement helps you with “shock absorption”/force attenuation.

However, with anything there is a balance.

Just like “training” is a good thing, “overtraining” is not.

However, before you decide to try to FIX “overpronation”, understand the context of the runner.

If you don’t, your “fix” might make things worse.
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Keep in mind that this is for educational purposes only. This does not replace medical advice.

If you are looking for more professional guidance from a running expert, check out the link in my bio!

05/31/2026

Could Sebastian Sawe have run faster if he didn't pronate?

That's the comment I keep seeing under his 1:59:30.

Lets talk about the mechanism.

When your foot lands, the arch lowers. Your tibialis posterior tendon stretches. Your plantar fascia stretches. Your arch ligaments stretch. They store elastic energy. At push-off, everything recoils and gives that energy back. Your foot isn't a flaw. It's a system of springs.

75% of people pronate. It's how the foot is built. And when researchers tracked 927 runners for a year (Nielsen 2014), pronators didn't get hurt more than runners with "neutral" feet.

So if pronation stores and releases energy with every step, what happens when you take it away?

05/27/2026

“It’s just a hairline fracture”

It is that time of the year again as there is basically a race every week haha.

Navigating running injuries is FRUSTRATING, especially when you have put so much time into preparing for a race.

As runners, we tend to “play down” our injuries and symptoms.

We hope that it will get us back to running sooner.

However, this may lead to a more aggressive plan that may exceed what the body should be doing at the current moment.

And end up leading to a slower recovery.

As clinicians working with runners, we also tend to do the SAME when helping a runner through the injuries.

We may be “overly” optimistic to help gain the runner’s trust initially.

However, when expectations do not match reality, the runner may end up being more frustrated in themselves as things are “taking longer than they should.”

The best outcomes come from:

Transparency from BOTH the runner and the clinician.

Giving accurate information will help map out the best way to navigate the injury based on the runner’s short-term and long-term goals.

Clear communication is key!

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Movie: Grown Ups 2

Keep in mind that this is for educational purposes only. This does not replace medical advice.

05/24/2026

His first marathon was under 2 hours! 🤯
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Yomif Kejelcha runs the fastest debut marathon and goes SUB 2 with a time of 1:59:41!

To gain a better appreciation of his running, I present 2 different views both timed to be around the same moment of the running cycle.

I look forward to seeing what he will do in the Valencia Marathon at the end of the year!
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Keep in mind that this is for educational purposes only. This does not replace medical advice.

If you are looking for more professional guidance from a running expert, check out the link in my bio!

05/20/2026

Olympic Sprinter vs. Olympic Marathon Runner
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Running technique looks different depending on the distance/discipline you are racing.

The footage here highlights that.

We have Jeremy Wariner, who is an Olympic 400m runner. The speed here is 9.09 m/s (20.34 mph).

On the right, we have Jared Ward, who is an Olympic marathon runner. The speed here is 5.70 m/s (12.8 mph).
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Raw footage credits belong to: TCU Locomotor lab, Dr. Laurence Ryan, and the SMU Locomotor Performance Laboratory

05/17/2026

It is not JUST about cadence.
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Everyone always look at cadence as if copying it will "improve" running mechanics.

However, you need also appreciate the other part of the equation: Step Length.

This is how much distance he covers with each step.

Based on looking at his cadence and pace, each step he took was roughly 6 ft or roughly 1.93 meters.

This is less about how long his legs are and more of the springiness/power of his legs.

However, bigger calves don't necessarily mean better propulsion.

There has been studies that looked at the lower legs of elite Kenyan runners.

What they find is that while the calf muscle is not necesarily bigger, you will find longer achilles tendons.

This highlights the importance of tendons.

However, don't neglect strength training.

This can actually help with the function of the tendon.

Lastly, it is still important to consider other aspects that influence step length, such as environment, musculare endurance/fatigue, and shoes.
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Keep in mind that this is for educational purposes only. This does not replace medical advice.

If you are looking for more professional guidance from a running expert, check out the link in my bio!

05/13/2026

It is not JUST about cadence.
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When people look at Sabastian Sawe run, people immediately move to looking at cadence.

One should also appreciate how much distance he covers with each step.

Based on looking at his cadence and pace, each step he took was roughly 6 ft or roughly 1.93 meters.

People tend to think your step length is limited to simply your leg length, but Sawe seems to be 5ft 7 inches tall (~170 cm).

Yet he takes these large steps.

This is more of a result of the power generated from each step.

However, it is also important to consider other aspects, such as unique anatomical considerations (which I will talk about in my next video), environment, musculare endurance/fatigue, and shoes.
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Keep in mind that this is for educational purposes only. This does not replace medical advice.

If you are looking for more professional guidance from a running expert, check out the link in my bio!

05/10/2026

"If he fixed his pronation, he would have ran even faster"
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There are plenty of people that have commented about Sebastian Sawe's foot/ankle movement as he broke the world record.

However, the movement seen in a front view is NOT unique to him,.

You see it across other WORLD CLASS runners.

Contrary to popular belief, there is no strong evidence to support that this movement leads to a higher risk of injury.

"Fixing" this movement will not necessarily mean he will run faster nor be less prone to injury.

Lastly, it is important to understand is that what you see is not simply coming for the ankle/foot movement alone, but rather the interaction of the shoe with the foot.
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Keep in mind that this is for educational purposes only. This does not replace medical advice.

If you are looking for more professional guidance from a running expert, check out the link in my bio!

05/03/2026

Multi View of the FASTEST marathoner in the world!
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Sebastian Sawe holds the new world record with a time of 1:59:30.

Here you can appreciate multiple views as he made history!

It is important to note that running can look different at different parts of the race.

This specifically looks at the end.

However, I will probably make more of an analysis video in the next few weeks.

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Sacramento, CA

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