Erin Carson - ECFIT Strength

Erin Carson - ECFIT Strength Helping high-performance humans build and maintain strength for sport and life.

Founded by Erin Carson, ECFIT Strength is a sport-specific approach to strength training designed to support & complement high-volume endurance sessions as well as many other sports. With a focus on core elements of functional movement, the ECFIT Strength Coaches work with many of the world’s best triathletes, cyclists, and runners every day from home base in Boulder, Co. These athletes do the kin

d of work at home and in the gym that allows them to train harder, longer, and without injury, then show up at the starting line ready to compete at the highest level.

GIVEAWAY TIME ON INSTAGRAM! 🎉Recovery is one of the most important parts of training, so I’m giving away a Theragun Mini...
08/31/2026

GIVEAWAY TIME ON INSTAGRAM! 🎉

Recovery is one of the most important parts of training, so I’m giving away a Theragun Mini to one member of the ECFIT community!

Here's how to enter over on Instagram:
✔️ Follow
✔️ Like this post
✔️ In the comments, tell us one lesson you've learned from Erin that has changed the way you train, recover, or think about performance.
✔️ Tag a friend who loves learning about strength and recovery.

✨ Bonus Entry: Share this post to your Stories and tag .

The winner will be announced on my stories on 9/7

I can't wait to read your responses. One of my favorite parts of coaching is seeing which lessons stick with people, and your answers might just help someone else on their journey.

Good luck!

08/28/2026

Bulgarian split squats aren't just about getting through the reps.

Pay attention to the details.

Keep your rib cage tall. Stay stable through your front leg. Don't let the knee wobble as you move.

Those small adjustments might not seem like much, but they're often what separates simply doing the exercise from getting the most out of it.

The goal isn't just to complete the movement. It's to own it.

Recovery isn't always passive.When people think about recovery, they often picture taking a day off or putting their fee...
08/25/2026

Recovery isn't always passive.

When people think about recovery, they often picture taking a day off or putting their feet up. While those things absolutely have their place, recovery can also be active.

A foam roller can help reduce stiffness and prepare your body to move more freely. Mini bands are a great way to activate muscles, improve stability, and reinforce good movement patterns without adding unnecessary fatigue.

The goal isn't to do more work. It's to help your body recover from the work you've already done so you're ready for the next session.
Recovery doesn't have to be complicated. Sometimes a few simple tools and a few intentional minutes are all it takes.

What recovery tool can you not live without? Mine are definitely a foam roller and mini bands.

Feeling incredibly grateful to have these talented athletes in Boulder.Dan Green, Lucy Bartholomew, Annie Rodenfels, an...
08/23/2026

Feeling incredibly grateful to have these talented athletes in Boulder.

Dan Green, Lucy Bartholomew, Annie Rodenfels, and Maggie Montoya continue to remind me what commitment to the process looks like.

One of my favorite parts of coaching is that I don't get to write anyone's story. I simply get the privilege of supporting it.

I'm honored to be a small part of your team and excited to cheer you on throughout the season. Thanks for trusting me to be part of the journey. Here's to all that's ahead!




08/21/2026

I know... I sound like a broken record when it comes to sleep. 😅

But after talking with , I had to laugh when he called it "legal doping."

It's such a simple way to describe something that's incredibly powerful.
If you want to perform better, recover better, and feel better, don't overlook the basics. Sleep is one of the best investments you can make in your health and performance.

What do you think? Is sleep one of your priorities, or is it something you're still working on?

One of the biggest lessons I've learned has nothing to do with strength training.It's about the people you surround your...
08/19/2026

One of the biggest lessons I've learned has nothing to do with strength training.

It's about the people you surround yourself with.

I've found that the right people have a way of bringing out your best. They encourage you, challenge you, and remind you what's possible.

The opposite is true, too. Constant stress, negativity, and unhealthy relationships can affect far more than your mood. They can impact your sleep, your recovery, your motivation, and even your performance.

The hard part is that creating distance from those relationships isn't easy. Sometimes it's someone you've known for years. Sometimes it's family. Sometimes it's someone you genuinely care about.

Putting yourself first can feel uncomfortable. It can even feel selfish.
But I've learned there's a difference between giving your energy to people you love and continually sacrificing your own well-being.

Just like we make choices to protect our physical health, we have to be willing to protect our mental and emotional health, too.

Sometimes the healthiest thing you can do is create space for the people who help you become the strongest version of yourself.

If you've spent any time in the fitness world lately, you've probably heard people talking about Zone 2 training.In simp...
08/17/2026

If you've spent any time in the fitness world lately, you've probably heard people talking about Zone 2 training.

In simple terms, Zone 2 is a lower-intensity level of exercise where you're working hard enough to challenge your aerobic system but can still carry on a conversation. It's designed to build endurance, improve efficiency, and create a strong aerobic foundation.

It has become one of the biggest conversations in endurance sports, and for good reason. It can be an incredibly valuable part of a well-rounded training program.

But it's just that... one part.

Every few years, a new training method takes center stage. Before long, it starts to feel like it's the missing piece everyone has been searching for.

The truth is, long-term progress rarely comes from one workout, one heart rate zone, or one trend. It comes from putting all the pieces together.

That's how I approach every program I build. Strength, mobility, recovery, movement quality, and endurance all have a role to play. The key is knowing when to emphasize each one based on your goals, your season, and where you are in your training.

That's why I don't build programs around trends. I build them around you.

If you're looking for a training program that takes the guesswork out of knowing what to do and when to do it, I'd love to have you join me. Start with a free 14-day trial and experience what it feels like to train with a plan that's built for the bigger picture.

One of my favorite post-workout stops. 💪I was sitting here thinking how funny it is that everyone comes here for a littl...
08/15/2026

One of my favorite post-workout stops. 💪

I was sitting here thinking how funny it is that everyone comes here for a little extra protein after the gym...

Then I remembered this is Boulder. Around here, it feels like everyone just came from a workout.

Shoutout to one of my favorite local spots for keeping us all fueled.

08/14/2026

One side feels tighter than the other?

If so, that's ok.

Our bodies aren't perfectly symmetrical, so don't expect every movement to feel exactly the same from side to side.

Take what your body gives you that day. Notice it. Learn from it. Then keep moving.

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Denver, CO

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+13035962568

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