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
Follow Us



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,

Impact is one of our core values, and even in the face of uncertainty, we believe there’s always room to positively influence our community. We’ve been offering virtual classes since we temporarily closed our studios’ doors, and we are blown away by the incredible outpour of encouragement in your comments, emails, and messages. We’re committed to delivering at-home workouts and wellness tools during this temporary shutdown.

For those of you who would like to contribute to the ongoing creation of our digital wellness offerings, please feel free to do so, here. If not, that’s ok too. We’re honored to play a part in your journey, and we’re here to help you shine. 

While we can’t host you for class at the studios right now, we’re offering new video streaming classes on our social media pages to help you move at home!




Sign up below for updates on our re-opening!

With Love and Gratitude,

Team CORE40

You have Successfully Subscribed!