2026-04-13T19:43:15.529Z

I asked for a referral to Dr. Jeff Denning because I had been experiencing back and hip pain for the last couple of years. During the later part of those two years, the pain was gradually getting worse; it was affecting my ability to stand for a period of time without pain. After an initial assessment, Jeff initiated a set of once a week therapy sessions tailored to strengthen back and hip muscles and improve flexibility. We started slowly and easily then increased weight and challenge as therapy progressed. I’m very satisfied with the progress I’ve made. I’m significantly stronger now, can stand without pain while doing things like cooking dinner and can move about with much more ease. And, a big plus, I again walk 18 holes of golf 3 to 4 times a week (I had been riding for a couple of years to avoid pain). If you require physical therapy I highly recommend you see Dr. Jeff Denning. He listens, is personable and plays your favorite music while you workout. Thanks Jeff!

2026-04-02T21:30:33.962Z

I’m 72 years old and have really wanted to improve my golf game. I was introduced to Jeff Denning of Invictus through the Tee Box in Idaho Falls. My thinking was that in order to achieve the level of performance I desired, I might need to consider making improvements to my physical health and fitness. Jeff performed an initial evaluation of my strength, fitness and flexibility using the Titleist Performance Institute (TPI) criteria and identified a number of goals to work on. After 12 one-hour sessions, I am very pleased with what Jeff was able to help me with. My core strength improved dramatically as well my balance. He also significantly improved the strength of my left shoulder that had remained weak since rotator cuff surgery in 2012. I had given up on this shoulder thinking it would never get any stronger. I feel very satisfied that my physical fitness is no longer limiting my golf swing. Jeff has given me a number of exercises that are specifically tailored to maintaining and further improving these investments to my physical fitness. While I may not be able to match my grandson’s driving distance, I can certainly come close to his agility, flexibility and the love of the game! Thank you, Jeff!

2026-04-02T15:14:22.043Z

I can’t recommend Jeff and Invictus RX enough! I had been dealing with a nagging rotator cuff injury for about 6 months when I found Jeff. I couldn’t raise my arm much above shoulder level and had a constant ache and intermittent sharp pains. I had tried an orthopedic doctor and a different PT they recommended, and ended up spending a lot of money for zero improvement. I couldn’t sleep. I couldn’t do most of the activities I really enjoyed like golf and lifting weights. I was pretty miserable and had basically decided that my bad shoulder was just going to be permanent and I needed to accept it. Then I met Jeff at the Tee Box and after talking to him a little, I decided to give it one more chance. I am very thankful that I did! His program was different than what I had experienced with the other PT and I almost immediately started seeing improvement. It wasn’t just band exercises and stretches. He wanted me in the gym, he encouraged me to keep lifting and adding weight, and he tried new things and added new movements every week to keep me progressing. I have really enjoyed the sessions! Jeff was honest from the beginning and told me it would take time and effort, and he was right. The pain and range of motion got a little better every week, which was very encouraging. I started regaining strength in that arm, and now at about 3 months in, I am so happy to be about 95% back to normal! I imagine that will keep improving with what Jeff has taught me too. I’m back to lifting regularly (and not skipping shoulder day) in the gym. I can play 18 holes without any pain. And I can finally sleep through the night again. All thanks to Jeff! So, TL;DR, Jeff is the best! He is great at what he does, super knowledgeable, worth every penny, and I guarantee he can help if you’re struggling like I was!

2026-01-11T02:33:34.415Z

Jeff is amazing to work with. He will help you find the root of the problem and then help you fix it. I'm back to doing Crossfit again and wouldn't be anywhere near where I am at now without his help. Totally recommend!

2025-10-09T14:10:10.925Z

I highly recommend working with Jeff. I went to him specifically to help with my golf game get more consistent. I did the TPI assessment with Jeff where we were he was able to see some deficiencies in the way my body was moving. After working with Jeff for a few months my golf game has never been better and more consistent.

2025-07-23T21:36:09.413Z

From the initial evaluation/ assessment, I could tell Dr. Jeff Denning was different. I had never been to an initial evaluation, and the provider took 1.5 pages of notes and passed the allotted appointment time because he wanted to understand my issues better.In previous years, I have had nagging lower back pain issues that were exacerbated when playing golf. In 2024, I played great golf initially, but then the pain started, and I couldn't fully recover. Instead of recovering in a few days, the issues persisted for months, never returning to 100%. At one point, I was doing 4 hours of warm-up to play 4 hours of golf.At the start of the 2025 golf season, the cards were stacked against Dr. Jeff. At the initial assessment, my lower back felt great with no issues, but I knew problems would arise and wanted to get a step ahead of the issue. Me feeling great didn’t deter Dr. Jeff; he created a program that made a difference, focusing on the different aspects of pain, i.e., mental and physical.Dr. Jeff truly approaches his job with professionalism and dedication. His care and passion for clients are exhibited in the details. What other PT provider do you know that takes a video of his clients performing an exercise, studies it like game film, and returns the next week with notes and a better approach? There are not many. Too many times have I chatted with doctors, and the first suggestion is “stretch.” Jeff goes above and beyond to provide the tailored care and attention you deserve.If you want to feel better, embrace life fully, and live without pain, I highly recommend seeing Dr. Jeff Denning.

2025-06-20T16:04:04.808Z

Back at the end of Oct 2024 I had rotator cuff surgery to repair a full thickness tear of the supraspinatus muscle of my right shoulder. My surgeon made it clear that I was to wear a sling and do only minor exercises for a full six weeks after the surgery. At that point I could begin PT, initially working on regaining my range of motion, then rebuilding the strength in the arm. I’ll note up front that I’m 77 years old and in pretty decent physical condition.About a year prior to my shoulder injury my spouse had a knee joint replacement and the physical therapist that worked with her in Salt Lake City immediately after her surgery recommended Dr. Jeffery Denning/Invictus Rx for her physical therapist since we lived in Idaho Falls. Her experience with Invictus was great. Within six months she had surpassed her walking/hiking abilities as well as increased muscle strength in both legs prior to her surgery. Given her experience with Jeff at Invictus I knew that was where I would go for my shoulder PT.When I began PT at Invictus I could barely raise my right arm straight up above my shoulder. For the first 6-7 weeks or so Jeff worked on getting the range of motion in my right arm back as close to where it was prior to my injury. We worked on doing that three days a week at Invictus’ facility, but Jeff stressed that doing the exercises we worked on there alone wouldn’t be enough, and that I should also continue to do them several times a day at home if I wanted to make real progress.One interesting aspect of Jeff’s work with me was that not only did we work on my right shoulder, but we also mirrored those exercises with my left side to ensure that I maintain the strength and mobility of that arm while rebuilding mobility in my right arm.At the last office visit I had with the surgeon who performed my surgery, 13 weeks after the surgery and 7 weeks after I began my PT sessions, my surgeon indicated I was making great progress, and he didn’t see any need for further follow-up checkups unless something out of the ordinary occurred.Just prior to that visit Jeff had me start on rebuilding the strength in my right arm and shoulder as well as continuing to work on mobility. As with the mobility exercises, the strengthening exercises I did were for both my right side and left side.It was clear to me from the beginning of my PT sessions with Dr. Denning that he is absolutely dedicated to getting his patients back to the maximum physical condition they can achieve to enhance their lives. In my experience with Dr. Denning and Invictus he clearly cares about his patients and their progress in improving their physical abilities.After six months at Invictus I feel like my right shoulder and arm are at the same or very close to the same strength and mobility they were prior to my surgery. I can do the things I really enjoy, such as hiking in the desert canyons of southeast Utah, rowing our raft down the Main and Middle Fork Salmon rivers, casting a fly rod, working out at the gym, or just putzing around the house, doing yard work, or building that next bamboo fly rod.So, if you’ve had surgery or an accident, or you just want to regain some strength and mobility that would make your life more enjoyable, working with a physical therapist is a great way to make that happen. And if you decide to take that step Dr. Denning at Invictus Rx would be my strong recommendation.

2025-03-31T16:04:56.027Z

Jeff is sensitive to what I’m feeling and adjusts appropriately. Shows interest in my concerns, works both sides of my body to keep everything strong. I like that includes weight training into the rehab process.

2025-03-24T19:13:13.581Z

I unfortunately injured my elbow through overuse while doing Crossfit. One day it was fine, the next day I couldn't lift anything heavier than 3 lbs with my arm. I bought a brace and continued to try to exercise, but the strength just wasn't there anymore. I tried to push through it for months. It didn't get any better. A friend suggested I should go visit Jeff at Invictus Rx. I was hugely skeptical, like he could really do more for me than I was already trying to accomplish? But truly, I'm so grateful I tried it. Jeff has been very professional and knowledgeable. He took the time to understand what injury I had sustained, but also what I wanted to accomplish in order to get back to my normal activities. Jeff used a variety of methods to help me gain back function and mobility in my arm. I was diligent with the home exercises he suggested and they, in addition to techniques used during our appointments, made a huge difference to my recovery. It took several months, but I was so happy to get back to where I was before my injury!

2024-12-25T21:36:42.017Z

Jeff is extremely knowledgeable about his work and is so helpful at every step. He really listens well to the issues you bring to him to provide the best solutions. In my personal case, it was a shoulder issue of not being able to lift my arm very well. He gave me simple exercises to repeat and that problem went away quick. I can't recommend him enough. He's so helpful no matter how simple or complicated the problem. Patience is a really valuable asset to have and he's got it in spades.

2024-12-17T22:41:57.865Z

This is from ADELE HARPER...I had acute tendonitis of the left elbow. I had tried steroid shots but wasn't happy with the results. I also have osteoporosis and was very concerned about if I fell I would break a bone.Jeff has created a program that has strengthened me and also alleviated the tendonitis He pushes and encourages in a kind friendly manner that helped me reach my potential. I am rejuvenated and energized after every session. I have been going to Jeff for over a year now My balance, strength and coordination has improved tremendously I highly recommend Jeff Denning as a physical therapist He is very knowledgeable in assessing with a personal program that worked for me. On a 5 star scale, I would rate Jeff a +5 Thank you, Jeff for all that you do for meAdele harper, a very happy satisfied patient

2024-04-22T15:12:10.411Z

I recently finished treatment with Jeff at Invictus for a back injury that I sustained last fall. I was immediately impressed with Jeff's knowledge and quick-thinking about what could have caused injury and how to treat it. He had a recovery plan laid out for me to not only treat my back pain, but get my body in better condition than before my injury. Every session with Jeff was very productive and helpful, and I always left with exercises I could do at home on my own. Along the course of treatment for my back, he helped me with some hip and knee pain as well. Jeff can treat it all, and I'm so grateful to have had his help and guidance to get my body strong again. I no longer am afraid of injury during exercise, and can tell my body is stronger and more functional than it was prior to seeing Jeff.

2023-11-16T22:13:21.729Z

I dislocated/sprained my knee back in June and began physical therapy with Jeff as soon as I was cleared from the brace by my Orthopedic doc mid-August. He is kind, knowledgeable, flexible and beyond helpful. I truly can’t believe the progress I made in such a short amount of time with his assistance; I went from not even being able to lift my foot up off the ground to doing full on squats. I appreciate the holistic, one-on-one approach he offers during his sessions. He treats your sessions as more of personal training than your traditional physical therapy. If I ever need physical therapy again, Jeff will be the first one I call. I will forever highly recommend him.

2023-08-16T00:36:44.511Z

I went to a golf fitness clinic early this year and I am now working with Dr. Jeff on getting my body and my game in better shape. Increased swing speed and flexibility has helped me feel better and play better! Not only helping me get stronger but working with me on a stubborn rotator cuff rehab as well. Beyond the basic usual approaches too. Give it a try.🏌

2023-06-22T03:10:02.981Z

I have been suffering with lower back problems for over a year and a half. I even had an ablation performed and hoped that would help. I saw on Facebook an invitation to see Invictus RX for back pain and help with pain associated with golf. That’s how I met Dr Jeff Denning. I’ve been going to him a couple of times a week for almost a month and the pain has subsided in my lower back and if I do the exercises daily I don’t have any pain. He varies the exercises weekly which I truly enjoy. He is a wonderful young Doctor of Physical Therapy and I highly recommend anyone that golfs with pain to go see him for an evaluation to see if he can help you. I’m sure he can help you!!

2023-02-15T22:42:01.295Z

My experience with Jeff has been great! I have had several areas of weakness for years and in just a few sessions Jeff was able to help me and I saw improvement and I have felt like every session has been not only productive but challenging. I would highly recommend Jeff to anyone that needs physical therapy. He is kind, respectful, a good listener, and very intelligent.

2023-02-04T20:56:49.443Z

Jeff is a fantastic physical therapist and a nice guy. My shoulder was bothering me for a month and a half before being referred to him and in just a few visits I've been able to increase my range of motion and gets some strength training back in my routine. Would 100% recommend Jeff for anyone looking for a physical therapist.

2023-02-02T21:30:31.260Z

If you're in the crossfit or golfing realm and need help with an injury, or preventing it from happening in the first place, I highly recommend working with Jeff!

2023-01-11T05:00:23.000Z

As a long time CrossFitter and coach, I really appreciate having a PT who knows the kind of fitness I want for my body. I worked with him through a cranky achilles tendon and later my knee that has always given me trouble because of an old sprain from my teens. Jeff won’t just send you through the same blah blah list of stretches and machines that you’ll find in many practices. Our sessions were more like a garage style workout and he was knowledgeable in how to not only resolve my current problem, but strengthen it to avoid continued issues in the future. So thankful for his expertise getting me back to doing what I love most.

2023-01-11T04:58:44.249Z

As a long time CrossFitter and coach, I really appreciate having a PT who knows the kind of fitness I want for my body. I worked with him through a cranky achilles tendon and later my knee that has always given me trouble because of an old sprain from my teens.Jeff won’t just send you through the same blah blah list of stretches and machines that you’ll find in many practices. Our sessions were more like a garage style workout and he was knowledgeable in how to not only resolve my current problem, but strengthen it to avoid continued issues in the future. So thankful for his expertise getting me back to doing what I love most.