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What is 40fit?

40fit supports a community of athletes age 40+ with Fitness, Community and Lifestyle resources. The goal is to support performance, lifestyle and quality of life for 40 plus athletes. By combining the resources of evidenced based science, anecdotal experience, and the community, individuals are challenged to look at aging through a refreshing perspective and reach their maximum genetic potential.


The more I trained using various methods, the more I realized there was something missing.  I noticed that even though I was significantly more fit than most of my peers, my experience in training was not the same as the “younger crowd.” The higher my fitness level became, the more I realized the value of fitness and lifestyle factors that I paid less attention to in the past. This is true for almost any athlete seeking higher levels of performance and capacity. Any inexperienced athlete can make quick and sometimes astonishing gains.

40fit programming is based on my own personal experiences as an athlete, evidenced based science and the collective experiences of the community. The programming model is a conjugate of these inputs and represents an adaptive construct to support the maximum genetic potential of each individual athlete. There is no one system that can meet the needs of all individuals, and anyone who would tell you otherwise is selling something for the purposes of selling something. The programming in the training model will constantly change and be a work in progress. We will not follow fads or training techniques just because someone else recommends them or they have become sexy. The foundation of any training should be based on what works, not what sells. I know that puts us at a significant disadvantage to spread the word, but I hope that the results of those who engage in our training will be evidence enough.

Sep 1, 2020

Coach D delivers an overview of total joint replacements, their effectiveness, their limitations, and the considerations for training before and after surgery.


Modern medicine has developed artificial joints which can replace damaged or worn out joints in the human body, often with great results. As new materials have been introduced to the protheses, artificial joints have become lighter, more durable, more functional with greater range of motion, and longer lasting. However, they do have a shelf life, and the biological interface of organic human tissue with the replacement eventually fails. Therefore trainees should consider a number of factors before deciding to undergo joint replacement, including whether they are a good candidate for joint replacement (based on their symptoms and current level of strength and fitness), their health and fitness goals, the expected lifespan of the replacement and whether they can or want to undergo a second surgery to replace the artificial joint at the end of its lifespan, etc.


Darin shares some of his 30 years of clinical experience with hip, knee, and shoulder replacements in how to navigate these factors, and what to do after you have decided to undergo joint replacement.


Training and the Artificial Joint by John Petrizzo, DPT


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