high-intensity pilates | beat driven | mindful movement

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Jenny Grierson, better known as Jenny G, is our fabulous June coach of the month. After traveling the world, she returned to Denver and quickly fell in love with Fierce45. She embodies the Fierce community through and through.

Find out more about her Fierce journey below!


Instagram handle: @jgrierso


How long have you been teaching at Fierce45?

Since November 2016!


What is your background (fitness or otherwise)?

I started getting into fitness in college when I worked as a facility manager at the rec center and got the chance to try out all of the group fitness classes!  From there, my fitness life took a bit of a hiatus while I traveled around teaching English as a Second Language.  I lived in San Sebastian, Spain for a year and then traveled around South America.  I came back after those 2 years of drinking lots of vino and eating delicious food ready to change my body and focus on getting myself healthy again, that’s when I discovered this method!


What is your favorite thing about the Fierce45 community?

It is SO positive and supportive.  I can’t believe how many close friends I have made since joining this community.  Everyone is so encouraging and I feel inspired everyday by the awesome coaches and clients here at Fierce.


Why do you love teaching at Fierce45? What sets Fierce45 apart from different fitness studios?

The culture at Fierce45 is not only supportive and inspiring, but fun and welcoming!  I think what makes us stand out as a studio is that we manage to balance the focus on this insanely challenging workout (both mentally and physically) and also getting to know our clients on a deeper level.  


Why do you love Fierce Movement?

This method changed my body. I have tried almost every type of exercise out there, and there’s nothing this effective, in my opinion. I love how challenging it is every single time.  


In three words, summarize your teaching style.

Humor, encouragement, MUSIC


Tell us a fun fact about you!

I’m a middle school ESL teacher.   I get to work with a small group of students, and their families, who arrive speaking little to no English.  It has to be one of the best jobs in the world, I absolutely love what I do! 


Catch Jenny G at LoHi and WWP for lots of laughs, encouragement, and nothing less than a killer workout. We promise you'll love her just as much as we do!

Melissa Williams