Man in running clothes crouched down and grasping his ankle and calf


Tendonitis is the condition resulting from the irritation or inflammation of the tendons (the thick cords that join the muscles to the bones). This condition causes pain and tenderness that makes it difficult to move the affected joint.

In relation to the foot, it is the Achilles tendon that can develop tendonitis thus causing pain along the back of the leg near the heel (particularly when taking the first steps of the day or after long periods of rest).

Tendonitis is quite common in runners, particularly if they’ve increased the intensity or duration of their runs. Other contributing factors include exercising without properly warming up; playing sports that require quick stops and changes of direction like tennis; wearing old or ill-fitting footwear, and wearing heels for prolonged periods of time Rheumatoid arthritis and diabetes are also linked to tendonitis.

BAREFOOTSCIENCE™ exists to make painless feet a permanent fixture across the globe.  Our rehabilitative in-shoe insole system promotes a balance of strength and flexibility in the foot and legs muscles that relieves tension on the Achilles tendon, protecting it and the calf muscles from injury.

Pain and dysfunction is caused by muscle weakness - so it follows that strengthening is the path to wellness. The best athletes in the world know that to strengthen your body - you have to train. 

Everything from balance, stability, movement and musculoskeletal alignment begins with the feet. Atrophied muscles are directly related to flat feet, overpronation, plantar fasciitis, tendonitis, shin splints, bunions, heel spurs, foot, ankle, knee, hip, lower and upper back, shoulder pain, and arthritis.  BAREFOOTSCIENCE™ activates the foot muscles with each and every step, naturally building strength over time - improving these conditions. 

From our customers


Many thanks for introducing me to your product. As a runner I have suffered from various injuries on and off for years. Achilles Tendonitis, Plantar Fasciitis and Chondromalacia Patella have been re-occuring injuries which were caused by my overpronation due to flat feet.I have consistently stretched, iced and spent many hours with my physiotherapist. Despite doing everything I was told to do, my injuries would come back. After being introduced to Barefoot Science I thought why not give it a try, I have nothing to lose. The five stages made the transitions very easy without any discomfort. After a few weeks my feet felt stronger and for the first time ever I could see a small arch under my foot. Instead of pronating I could now feel myself walking on the outer side of my foot and using my toes more for support. The product has helped with all my injuries and I am now running in a shoe with far less support than before. It feels great!

Wendy O'Neill

I have been running barefoot or in the Vibram FFs for the past decade. Thus, I'm well aware of the benefits of barefoot mid-foot running. My squat/scoot technique of tight/light/compact/forward running has proven time & again to be one of the safest, most efficient & powerful ways to distance run. My physical issues started years previously when (like most serious runners) I wore the 'coffins' religiously. After fighting piriformis & Achilles tendonitis issues off & on for years, I switched to barefoot/FFs running. However, I still had the lingering issues. After having hours of various treatments from some of the best practitioners in Ontario over a number of years, I was ready to accept my fate as a 'run-in-constant-pain' runner (if I wanted to continue running at all). This in spite of all my knowledge, specific training off-road & barefoot running. I met Lance & Rob from Barefoot Science about 2 years ago, and after a bit of convincing, tried the full sole graded proprioceptive insert. Almost immediately, I noticed a reduction in my Achilles pain. The piriformis pain was slower to dissipate (& still crops up from time to time). I continue to wear the 1/2 sole insert in my work & dress shoes & even use them in my FFs during the depths of our Canadian winters. I'm convinced that the neuromuscular/proprioceptive stimuli provided by the Barefoot Science inserts work in conjunction with barefoot training/running to keep the feet, Achilles, calves, knees, hams., quads., hips, gluts & back in proper balance & injury-free. A number of my clients (runners & athletes) are now using the B-S inserts with consistently positive results.

Jeff Stapleton
MS Exercise Physiology, Elite level sports coach
Woman in white blazer with her finger on her chin, looking away from camera as if she's thinking or considering a decision

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