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About us

We believe that changing your life should be fun and encouraging! Our battles (classes) use cardio, weights, and plyometric components in short duration/ high intensity with an inspiring group atmosphere. No matter what fitness level you are starting at this is for you. Our trainers can help adapt to meet your needs then add intensity when you are ready.

Trinity Fitness started in a garage in 2008 when our founder’s wife said, “I’m ready for a change can you help me?” The idea of using group fitness to inspire people to get into the best physical and spiritual shape of their lives came shortly thereafter. We want to see Healthy People Inside and Out in Every Community Across America!

LEARN MORE ABOUT TRINITY FITNESS

Schedule

Simply choose the class time that best fits your schedule and arrive 15-20 minutes early for your first class so you can meet your trainer and discuss your needs. Before arriving to your first class please create an account for yourself by clicking the “First Week Free” button above. See you soon!
  • Monday, December 9th

  • Class Time Duration Class Coach Spaces Avail.
  • 5:30 am 1 hr Battle Coach TBD Yes
  • 9:30 am 1 hr Battle Coach TBD Yes
  • 6:00 pm 1 hr Battle Coach TBD Yes
  • Tuesday, December 10th

  • Class Time Duration Class Coach Spaces Avail.
  • 5:30 am 1 hr Open Gym Coach TBD Yes
  • 6:00 pm 1 hr Battle Coach TBD Yes
  • Wednesday, December 11th

  • Class Time Duration Class Coach Spaces Avail.
  • 5:30 am 1 hr Battle Coach TBD Yes
  • 9:30 am 1 hr Battle Coach TBD Yes
  • 5:30 pm 1 hr Open Gym Coach TBD Yes
  • Thursday, December 12th

  • Class Time Duration Class Coach Spaces Avail.
  • 6:00 pm 1 hr Battle Coach TBD Yes
  • Friday, December 13th

  • Class Time Duration Class Coach Spaces Avail.
  • 5:30 am 1 hr Battle Coach TBD Yes
  • 9:30 am 1 hr Battle Coach TBD Yes
  • Saturday, December 14th

  • Class Time Duration Class Coach Spaces Avail.
  • 8:00 am 1 hr Saturday Battle Coach TBD Yes

PARTNERS

Our partners are incredible men, women and businesses in our community who believe in the mission and vision of Trinity Fitness. We are eternally grateful for the generosity of all our partners that help bridge the gap in our monthly budget. Contact Kathy Kelnhofer for more information. 904-525-0156 or Kathy@trinityfitness.org

PLATINUM PARTNERS

 
 

GOLD PARTNERS

 
 

SILVER PARTNERS

 
 

Team

One word…HEART. That describes the Trinity Fitness Team. All of our trainers are Trinity Fitness Certified and most of them are volunteers. They serve because they love God and they love people!
Kristin Nivens
Facilities Director

Kristin Nivens is extremely thankful and excited to serve as the facility director at Trinity Fitness Southside. Her involvement with TF began in 2014 when she lived in West Palm Beach and was preparing to move to Jacksonville. A friend told with her about a new gym that had recently opened in the area and shared the method, values and differences of Trinity Fitness. She promised to try it out and visit when she moved. She was hooked after her first visit and has since been involved as a volunteer trainer, part time staff member and now the full time facility director. She has seen and experienced first hand the physical and spiritual transformation that can come from TF.

Kristin grew up in Northwest Pennsylvania and was active in athletics since her childhood, playing basketball, track and swimming. She swam collegiately at Indian River Community College and the University of South Carolina. During her swimming career she was named an All-American and an All-Conference swimmer and was a member of two national championship teams.

Before coming to TF, Kristin has worked in a variety of areas including Aquatics Director, Youth Program Director and Patient Treatment and Financial Coordinator in the dental industry. She and her husband, Heath, have one son, Cullen. Their family is actively involved in TF Southside and love to promote its vision of healthy people inside and out. They are also actively involved in the various ministries at University Church in Jacksonville.

knivens@trinityfitness.org

(904) 235-8199

ROBERT JOHANSON.

Director

RICK DECKARD.

Manager

ROBERT JOHANSON.

Director

RICK DECKARD.

Manager

ROBERT JOHANSON.

Director

ROBERT JOHANSON.

Manager

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