At CORE40, fitness is our vehicle for personal transformation. We aspire to help you live an elevated life experience that is genuine, supportive, and heart-centered. We are committed to seeing you through your fitness journey, and celebrating you as you achieve improvement in every aspect of your life.

1390 Larkin Street San Francisco, CA 94109 Mon - Sat 8.00 - 18.00, Sunday 7.00 - 20.00
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Chelsea moved to Las Vegas after finishing college as a competitive gymnast at UW in Seattle, where she lived for 8 years.  While she was in Las Vegas, she performed acrobatics in a Cirque style show called “Le Reve – The Dream” at the Wynn hotel and Casino. The show was performed over 1.1 million gallon water pool so she was hired to fly, dive, and swim around for a living. Since she has been a competitive gymnast since the age of five, she had the spacial awareness required to perform complex acrobatic moves.

Lucky for CORE40, Chelsea ended up meeting a special someone who convinced her to move to San Francisco. After a year of being in a long distance relationship, she was ready for a new career in fitness and to move to San Francisco.

We asked about a few of her favorite things…

What’s your favorite song to work out to?“I’m a huge fan of techno when I work out and I really enjoy anything from Above and Beyond! I love how all their songs are upbeat and have some sort of vocal so that I can sing to them.”

What are your favorite foods?“As much as I love being healthy, I would definitely have to say Pizza and French Fries all dipped in Ranch!”

What do you love about SF?“I love going to Napa/Sonoma wine tasting and having brunch in Sausalito! I love to eat so I really enjoy trying out all the great restaurants this city has to offer!”

What is your favorite Lagree Fitness exercise? “French Twist! I love how I can feel all the little intricate muscles in my obliques when I do that exercise. One of my favorite Lagree moves to teach is the Plank to Pike on any part of the machine – since I am a gymnast, I really relate to teaching this move, because it reminds me of being in a handstand with most of the weight in my shoulders.”

Here is a picture of Chelsea playing a character called the “Amazon Gris” in Le Reve at the Wynn Hotel!


  • reply
    Barb Daher
    June 8, 2016

    So glad you have found your place and at your time! I lived in Marin County and worked in The City and loved every minute….great people, great food! I watched you perform Le Reve twice in Vegas and now I am excited to visit you in SFO when I am there! Best wishes to you and yours…..please keep in touch!


To Our Beloved Community,

We are beyond grateful for your love and support during this unprecedented world health crisis. The outpour of your thoughtful messages for CORE40 are truly astounding, and we are incredibly thankful to play a part in your journey. 

We received an update from the San Francisco Health Officials, which informed us that fitness studios are anticipated to open mid August. We are committed to doing everything we can as an organization to continue supporting our community with virtual content during the shutdown, and we need your help to ensure we can reopen our doors for you when the time comes.

Due to many of your ample requests to support CORE40, and in light of the shelter-in-place extension, we are moving our live streams to our class schedule, which will need a “virtual class” purchase of $20 for registration in each live-stream.

You can expect Lagree-inspired at-home workouts led by our awesome team of CORE40 SuperTrainers. All the information you need regarding future live streams can be found here:

For those of you who are not in a position to support at this time, you can still view our past streams on the CORE40 IGTV, YouTube, and Facebook pages.

And remember, together we rise. 

With love,

Team CORE40

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