904 E Hwy 50, O’Fallon,

IL 62269, United States

To Schedule Your Appointment Call:

+1 618-248-4618

“Take Charge Of Your Health And Address Back And Neck Pain With Chiropractic Services

Click play to hear from Eric Toennies about how Tri Force Chiropractic in Illinois – can help you…

About Tri Force Chiropractic

Tri Force Chiropractic is committed to offering the best form of wellness care in O’Fallon, Shiloh, Belleville, Lebanon, and the surrounding areas. I always look for the most natural approach to taking care of you and your family’s health and wellness. My office provides a warm and comforting family atmosphere where my team does all they can to make you feel right at home. A big part of Tri Force Chiropractic is to provide education to all patients on each visit about their health and how to achieve optimal wellness. My goal is to optimize your body’s potential to heal and keep itself healthy and well without the use of drugs or surgery.

Can You Relate To This?

If that sounds like you, you’re not alone. At Link Performance Therapy we see this type of thing all the time. In fact, people who come to see us have often:

  • Thought the pain would go away on its own, but it didn’t
  • Paid several visits to the doctor, only to be told to “just rest” and hope it goes away
  • Gone to “traditional” chiropractic, massage therapy, physiotherapy where they were worked on for 5 minutes, given ice or a stim unit for 20, then given a sheet of generic exercises not customized for them
  • Tried foam rolling, a hot tub, YouTube exercises, but nothing gave them long term relief
  • Tried to exercise or play through the pain, but all that did was make matters worse
  • Been told by a friend or family member that everyone feels this way as they get older – making it easy to accept it as a part of life

About Eric Toennies

Chiropractor

Dr. Eric Toennies has always been passionate about helping people achieve optimal health through natural, noninvasive care that focuses on true wellness and prevention. His approach to chiropractic care centers on identifying and correcting the root cause of health
concerns rather than simply masking symptoms. By helping the body function the way it was designed to, Dr. Eric empowers patients to heal from the inside out and experience a higher quality of life.

Originally from O’Fallon, Dr. Eric attended the University of Missouri before earning his chiropractic degree from Logan University. After graduation, he had the unique opportunity to practice chiropractic care in Scotland, where he further developed his patient-centered philosophy.

In July of 2018, Dr. Eric opened Tri Force Chiropractic with a vision of creating a patient-centered practice focusing on personalized care, education, and long-term wellness. Dr. Eric is proud to serve the O’Fallon community through his practice, helping individuals and families live healthier, more balanced lives.

Outside the office, Dr. Eric enjoys spending time with his amazing wife, Ashlyn, their daughter, Lyvia—who they joyfully welcomed in August 2025—and their beloved dog, Mara. Family is at the center of everything he does, and he brings that same care and dedication
into the relationships he builds with his patients.

When he’s not caring for patients, Dr. Eric enjoys staying active on his Peloton and is a passionate fitness enthusiast. In 2025 alone, he logged enough miles to make the journey to Alaska and back. He’s also a dedicated Baltimore Ravens fan who values creating a fun, lighthearted atmosphere in the office. His sense of humor and approachable personality help make Tri Force Chiropractic a welcoming environment where patients feel comfortable,
supported, and cared for from the moment they walk through the door.

About Skyler Sparks

A Belleville native and graduate of Logan University’s College of Chiropractic, Dr. Sparks takes a hands-on, individualized approach to care. He utilizes a range of techniques including Diversified, Gonstead, Activator, Logan Basic, Thompson, Acupuncture, and Dry Needling in order to best fit each patient’s needs.

Dr. Sparks is passionate about helping patients of all ages from newborns to the elderly move better, feel better, and live better. He commonly treats conditions such as low back pain, headaches and migraines, plantar fasciitis, ankle pain, hip pain, and shoulder issues.

Outside the office, you’ll find him in the gym, running, training Muay Thai, playing drums, or planning his next trip.

About Anna

She’s been the Office Manager at Tri Force Chiropractic since 2022 and is usually the one keeping everything running smoothly behind the scenes. From scheduling appointments to helping patients feel comfortable the second they walk in, she loves being part of making the office feel welcoming, organized, and easygoing. If you’ve ever wondered how they somehow managed to squeeze you into the schedule, there’s a good chance it was her doing.

Her favorite part of the job is getting to know patients and catching up with them before and after their appointments. She loves the relationships that come with working in the office and getting to see familiar faces every day.

Outside of work, she’s a proud mom to Arthur, born in September 2025. When she’s not at the office, you can usually find her reading, feeding her sourdough starter like it’s another child, or making a stop at 7 Brew. She’s also from Edwardsville, which gives Eric plenty of opportunities to make fun of her.

We realize some people may be “unsure” what therapy is right for them. It could be that you’re not sure it’ll work, or whether we can help with what you’ve got, or maybe you had a bad experience somewhere in the past? If that sounds like you and you’d like to learn more, fill out the form below to schedule a call with Dr. Eric to answer all the questions you have!

We Love To Help People:

  • Keep Active -So you can run after your kids all day, enjoy a Sunday round of golf with your buddies, or make your regular yoga class
  • Stay Free From Painkillers – So you’re not always reaching in the cupboard to ease the pain whenever it strikes. PLUS, they’re no good for your long term health anyways and don’t do anything to fix the problem, just mask it.
  • Find out what’s wrong – we’ll help give you peace of mind and ensure that your problem is “corrected” and “healed” properly – and we will provide you with the perfect set of exercises that will speed up your recovery
  • Avoid Dangerous Surgery – We can help you get to the root cause of what’s going on quickly – often within 20 minutes – so you don’t have to get to the point of having to face surgery to fix it.
  • Get More Enjoyment Out Of Life – So you can enjoy quality time with family and friends that aches and pains can steal from you, and finally get a good night sleep without tossing and turning trying to find the one position that feels right

Basically, we love to help people get back to living life free from the curse of chronic aches and pains…

If you want to know what it costs – and what availability we have at our performance therapy clinic in Illinois, then please click the button below and complete the short form:

Hear What Other People Just Like You Are Saying About Tri Force Chiropractic

Happy Patient Testimonial

Happy Patient Testimonial

Happy Patient Testimonial

Sports Injury Form

Knee Pain Form

Neck Pain and Shoulder Pain Form

Back Pain Form

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