United Proactive Performance

★ 5.0 (22 reviews)Guelph, ON(519) 546-7712

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Reviews

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5.022 reviews · Google

Sharon Law · Google · 24 Jul 2026

I have been seeing Marco since January 2026.Before that I had gone to Physio and a Massage Treatment for neck pain and Achilles Tendinitis, with no results. A friend of mine recommended Marco on the off chance he may be able to help me and the results were amazing. When I started there I could not turn my head to the left and was in excruciating pain. After a couple of visits.I had noticed a vast improvement. Today, no pain at all and I have complete use of my neck. My Achilles Tendinitis, the same deal, lots of pain in the beginning, couldn't walk too far because of the pain. Today amazingly no pain. He also got rid of a Ganglion Cyst on my right hand. Marco has changed my life and I would highly recommend his services. Thanks Marco for making a difference.

Jane Cotter · Google · 14 Jul 2026

Regular chiropractic treatments, reduce my pain and allow me to move more freely so, I can bike, garden, canoe and swim. After my knee replacement (due to osteoarthritis) Marco was part of the team that got me active again. I have recently finished a bike tour in the south of France.

Jake McMullen · Google · 7 Jul 2026

I came to Marco years and years ago for an injured disc in my back. I could barely walk it hurt me so badly. But after a few sessions of accupuncture and chiropractic work, it was like it never even happened. If anything I'm moving even better. I've been going to Marco monthly now and I don't regret it one bit. He's made recovery from work outs a breeze and every session's incredibly pleasant with great conversation. Couldn't reccommend him enough!

Shawn Kimmel · Google · 3 Jul 2026

As an older athlete I need all the help I can get to be competitive, and even more importantly for me, to remain injury free. Having Marco in my corner, makes the difference between ‘completing’ a race, and ‘competing’ in a race. His knowledge, wisdom and experience from years of training, supporting some of the best athletes in the world, makes him indispensable for someone like myself. But, everyone can benefit from the skills of such a uniquely exceptional chiropractor and therapist. I wholeheartedly recommend Marco.

David Anderson · Google · 2 Jul 2026

Dave Anderson – May 28, 2022 I was referred to Marco over a year ago for non-surgical treatment of persistent Achilles tendonitis. Marco has not only treated the symptoms of my injury, but also explored physiological factors that lead to the injury. In the short time I have been a patient I went from every step is painful to recently completing my first half marathon in over 2 years. His approach to the treatment of my ailments has also ensured that I was able to continue to work with no lost time. I highly recommend Marco Lozej.

Bryan Little · Google · 29 Jun 2026

As a former professional hockey player and now competing in triathlons, I’ve put my body through a lot over the years. Dr. Marco Lozej has helped me overcome and manage hip and back pain, recover from a foot injury, and stay healthy to continue training, racing, and enjoying an active lifestyle. His knowledge, attention to detail, and personalized approach have made a tremendous difference in both my performance and me being able to move and feel my best.

Brenda Chomiak · Google · 24 Jun 2026

Marco has been my chiropractor for 20 years. He has a professional and friendly demeanor. At the beginning of every appointment, he assesses my problem areas before he performs the adjustments. When I have a specific issue, Marco demonstrates exercises for me to practice at home to ensure I have an optimal range of motion.

Rachel Flanagan · Google · 21 Jun 2026

Rachel Flanagan, June 24, 2022 Marco joined our Integrated Support Team at a time when we were consistently competing for provincial championships but never really in the mix on the national stage. His philosophy on proactive therapy and injury prevention, alongside rehabilitation and athlete wellness is unique and highly effective. Marco is passionate about holistic care and collaborates extensively with other practitioners and coaches to maximize care for his athletes. After two seasons of working with our team and building trust, our program won its first ever National Championship in 2019. We had minimal hours lost to injury during our season and playoff run and, perhaps more importantly, Marco knew what each athlete needed to hear to ensure they were playing confident and free at the most critical moments. I truly believe that Marco’s support and care was pivotal in allowing our team to go from good to great.

Ron Cowley · Google · 19 Jun 2026

I have been a client of Dr. Marco's for many years and have found him to be an exceptional chiropractor with a vast skill set that he is always trying to improve on. His remarkably caring and calm nature puts patients at ease and adds to the positive outcome of his treatment. Athlete or non-athlete, Dr.  Marco can help you!

Patricia Passmore · Google · 19 Jun 2026

I first met Marco 20 years ago when I started competitive rowing in my 50s. He was able to assess and treat my joint issues and keep me "tuned up" for my activities. Over the years, I continued to see him as the need arose. Today, I'm 70+ with arthritis, but Marco helps me to continue rowing recreationally. His treatments and exercises are targeted, effective, and age-appropriate whether related to a specific activity or just the wear and tear of life. He has experience working with elite athletes to active seniors. He is very knowledgeable but also approachable and supportive regardless of what the issues are. Marco has been an important member of my health care team and I have recommended him to family members who have also benefitted from his care.

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(519) 546-7712

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