Underground Fitness
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Underground Fitness
Underground Fitness is a studio designed for all fitness levels. By empowering and inspiring, UF strives to educate clients on unique ways to develop or compliment fitness routines. Clients will achieve strength, flexibility, and stability through personal instruction and group fitness. We are very excited to announce that Underground Fitness is getting a bigger and better space!

This will be our temporary location while we are waiting for our new space to be built. TurboKick is an interval based, full body workout that begins with a sports-specific warm-up. High-paced intervals follow with kickoxing-specific strength/endurance training sequences and easy-to-follow combinations.
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Jessica Thomas is owner of Underground Fitness. She has worked in various settings teaching group fitness for several years and also holds a Bachelors' Degree in Elementary Education from Radford University.

She is former Chair and Co-council for Girls on the Run of Northeast Tennessee and loved being able to make a positive impact on the lives of young girls by empowering them to see the value in themselves and helping them move for their health.Jessica is an encourager and loves to push you to your limits to see you flourish!
Client workout spots are clearly marked on studio floors with 6-8 feet of distance between clients. While masks are not required during your workout, we do ask that you wear your mask at all other times while in our studio/hallway, unless you are distanced from others and on your marked spot for classes.
Reviews (15)
Bridget Cheek
Bridget Cheek
Jan 06, 2021
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LOVE this place! So many different types of workouts to enjoy, with awesome instructors! A positive, and motivating environment for all skill levels!
Andrew Clawson
Andrew Clawson
Aug 17, 2020
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RIDE with Jessica is something I look forward to every week. Her classes are challenging but fun and rewarding! I would recommend this class to both new or experienced riders.
Jennifer Schoondyke
Jennifer Schoondyke
Aug 11, 2020
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Great classes, upbeat environment, clean & socially distanced, easy to use!
Cathy Liebars
Cathy Liebars
Jul 26, 2020
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I love the variety of classes and all the instructors are great! Also, they have a few classes every day so there are many options for working out.
Laurie Tucker Freudenberger
Laurie Tucker Freudenberger
Mar 07, 2020
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Classes are lead by enthusiastic instructors playing upbeat,loud music!
Heather Miller
Heather Miller
Dec 29, 2019
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Underground Fitness is wonderful. The staff are encouraging and informational. Group fitness classes keeps exercising fun with different classes every day. I push myself more in class than I would on my own. Thanks Amanda and Jessica!
Jennifer Hay Helton
Jennifer Hay Helton
Dec 13, 2019
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I love everything about going here. The instructors are so helpful, give excellent variation on workouts for all levels, and always push us in class! The environment is friendly (that’s super important) and even after being gone for quite some time, I remembered immediately why I loved coming so much. Feels good to be home again! Ready to push myself into the upcoming new year! 👊🏻
Chelsey Jenkins
Chelsey Jenkins
Dec 12, 2019
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This is your place for achieving goals, pushing yourself, learning new ways to enjoy food while also developing friendships with the best people. Positive and uplifting environment. I have been here for years...this is for all levels and all goals ❤️
Jennifer Harrah
Jennifer Harrah
Dec 07, 2019
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Underground Fitness is an excellent option for all levels. No matter where you are at in your fitness journey, a novice or expert, Underground can help you meet your fitness goals. They offer a variety of classes. There is also nutrition support. If you are ready to become a healthier you, Underground Fitness is for you!
Jennifer Owen
Jennifer Owen
Sep 16, 2019
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Supportive environment with fantastic instructors and consistent classes. Fun workouts for any level. Encouraging classmates and positive atmosphere! Highly recommend for group fitness, small groups, personal training, childcare, and birthday parties!
N. Kirkland
N. Kirkland
Aug 12, 2019
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UF is the most welcoming and encouraging gym I’ve ever been a part of. The instructors truly care about each participant. I highly recommend everyone give Underground Fitness a shot.
Nostalgic Nook
Nostalgic Nook
Aug 01, 2019
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Absolutely fantastic! I love the diversity of the classes and how nice everyone is. This is a great spot for beginners and pros, the workouts have modifications to suit anyone. The price point is highly competitive as well, I like the option to buy classes as you go and not be forced into a contract.
Laura Thomas
Laura Thomas
Jul 01, 2019
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If you are looking for an AMAZING, encouraging, supportive environment to come workout and make some amazing friends. Look no further. Every single instructor is so caring and encouraging and every single class is modifiable for all ages and fitness levels. My husband even loves coming to class with me! So fellas you can come get a great workout too!
Jennifer Younce Harrah
Jennifer Younce Harrah
Jan 23, 2019
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I absolutely love the staff and atmosphere at Underground Fitness. The workouts can be adapted for all levels. They offer expert nutrition advice as well. If you are looking for a place where your overall health will be made a priority, this is the place for you!
Laura Cusick
Laura Cusick
Sep 08, 2018
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Amazing facility! The staff is so friendly and helpful! They make exercising fun and enjoyable. I look forward to spending time there each day. I’ve never been to a gym that is so accommodating and encouraging. Amanda and Jessica are a shining example of what a fitness family should be! I especially love what’s written on the wall as you enter the studio...”There are no strangers here- just friends you haven’t met yet!” This exemplifies exactly how they run their business.