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Some Work, All Play

280. Science of Energy Availability and Adaptation, “Just Say No To Rhabdo” Runs, Hot Takes on Poles and Active Heat Training, and the Evolution of Taper Theory!

Some Work, All Play

David Roche and Megan Roche

Running, Sports

4.82.1K Ratings

🗓️ 14 October 2025

⏱️ 97 minutes

🧾️ Download transcript

Summary

We had so much fun with this episode (probably because it was a break from potty training)! The main topic was a study that found a correlation between energy availability and performance across a season in collegiate runners. It was a powerful, objective look about what happens when the body is underfueled. You know it’s a good study when it makes us add 2 more eggs to the post-podcast frying pan (10 eggs total).

And this was truly one of our most joyous episodes ever! Other topics: how potty training and coaching are similar, a follow-up on uphill treadmill workouts, the theory of “just say no to rhabdo” runs, training plans, a study on the kindness v. rudeness of AI prompts, drama at the Kona Women’s Ironman Champs, poles and microspikes at Western States, the Chicago Marathon and fueling, Suunto sues Garmin, how to think about long-term growth, taking in gels, taper theory, psychology of fast finishes, and a question on business growth.

What happens when our nutrition is largely based on eggs and Leo’s chicken nuggets? THEY BE CLUCKINnnnn.

May we all be cringe until the day we die,

-David and Megan 

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Transcript

Click on a timestamp to play from that location

0:20.9

Woohoo. Welcome to the Some Work All Play podcast. We are so happy with you today. Happy Tuesday. It's Tuesday. And I'm feeling ready for my pedicure on this Tuesday. For your pedicure. I haven't heard of you getting one of those in quite a long time. I actually don't think I'm going to a nail salon and I don't got that kind of time. That does not exist in my schedule. Wait, wait. You got a haircut last week. That's different. It was an annual haircut. Okay. Yeah. I mean, if I don't get my haircut for like two whole years, we got a problem. Who's the person from the fairy tale that just lets her hair grow really long? Rapunzel. Rapunzel. You're going full repunzel. I'm actually always confused for that. Like, I get that, you know, hair is a self-expression and cultural and things like that.

0:39.0

But, I mean, it's not aerodynamic. I feel like we should all just go pretty short hair. In fact, I think my hair's too long right now. It's kind of blowing in the wind. I need to cut it. It looks good. Well, I got my haircut and I think you were very pleased. I came back. and the next day you're like, Megan, you look so fast.

0:54.1

It's the hair, isn't it?

0:56.4

I'm encoding you, just a little bit behind the knees. Okay, so pedicure, what are you talking about? Talking about the fact that I was playing with Leo this morning, our two, almost three-year-old, and he looked down at my toes and he was like, Mama, are you okay? He was concerned.

1:11.1

So why? Because your toenails are just gone? I'm missing some of them. The 50-mile just took your toenails out. There's something about these long altrues that go for the toenails because you haven't had that many issues before. My feet have always been great. In fact, I've gone to like practitioners and stuff and they're like, you have good feet for a runner. Yeah. And I have ruined that.

1:28.3

I don't know what happened at Run Rabbit,

1:29.6

but all my toenails, not all, but like maybe... like practitioners and stuff. And they're like, you have good feet for a runner. Yeah. And I have ruined that.

1:28.3

I don't know what happened at Run Rabbit, but all my toenails, not all, but like maybe three or four of them are black. And if you are missing. The weird part is the practitioner you're going to is an accountant. Love your feet. This only fans on your feet is really working out for me. really good for a runner.

1:44.5

Yeah.

1:45.1

So I need to fix it.

1:46.3

But Leo was so kind about it.

1:47.6

He's like,

1:48.0

are you okay? But then he knew it was related to run it. Yeah. He asked me too. He's like, did you lose your toenails from running? And I don't know where he's learning this. I think it's just intuition that he's able to kind of deduce that all of that time on your feet probably leads to some negative consequences. Which is pretty smart. He's not even three yet, but maybe they're teaching it at the Boulder preschools. I could see this being like standard education. Like you run 50 miles, you lose your toenails. This is like how we're going to start math. Before you learn to read, that's where it comes in. Yeah, it's just interesting that we have toenails at all. I just always reflect on that. Because when you lose them, kind of feels better. It does, actually, to some extent. I mean, I think theoretically they help with like proprioception and they help with a few different things. But like, I don't know. It's funny. I started with proporeception and I was like, shit. What else do you think they help with?

2:48.9

Well, I mean, we're trying to take off like a gram or two on our shoes or our bike frames. It's like, just pop off those toenails and the fingernails. Don't know anything for that shit. Cut them like you cut your hair. While we're at it, arms. What are they for? Actually, I'd probably be a lot faster without my arms. Your arms are great.

2:50.1

My form is terrible.

2:51.5

I love your form,

2:56.8

your arms, your nails, and now your hair. Okay, we have the best episode for you. We're going to start with a quick update on Megan's big threshold workouts. She stepped it up even more. Just say no to Rabdo

3:02.0

runs that might help before ultras. Then a study on energy deficits and training adaptations,

3:07.1

a study on how the tone of

3:08.6

AI prompts affects their accuracy, that one is bonkers, then a grab bag of news stories,

3:13.8

including from Kona Iron Man, and then Sunto suing Garmin.

3:17.9

This is just going to be our episodes of like blank sues Garmin.

...

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