About John Paul

John Paul Catanzaro, BSc Kin, CSEP-CEP, CSEP-HPS, is a CSEP Clinical Exercise Physiologist and a CSEP High Performance Specialist with a Specialized Honours Bachelor of Science degree in Kinesiology and Health Science. He owns and operates a private training facility in Richmond Hill, Ontario. In 1996, John Paul opened a personal training studio at his home in Toronto, Ontario. With vision and passion, the business quickly grew and the word got out: “If you want to get in shape, go see this guy!” Now located in Richmond Hill, Ontario, the business boasts a state-of-the-art training facility and a waiting list of clients. John Paul founded The Catanzaro Group in 2004 with divisions in fitness, nutrition, supplements, lifestyle, seminars, and publishing. In 2010, Catanzaro Supplements was introduced, a new line of nutritional supplements with the objective of providing high quality supplements in a convenient form at an affordable rate. Over the years, John Paul has appeared on television and has written articles for several publications, including American Academy of Health and Fitness (AAHF) Gamut eJournal, Bodybuilding.com, Bodybuilding Italia, canfitpro Magazine, Coaching One-On-One, Dolfzine, FitCommerce, Fitness Business Canada, Fitness Professional Online, Fitness Trainer, Flare, grrlAthlete.com, Intense Fitness, Men’s Health, Mercola.com, MuscleMag International, Olympian’s News, Personal Trainer Development Center, Personal Training on the Net, Planet Muscle, Quest For Advanced Condition, SelfGrowth.com, SpotMeBro.com, Testosterone (aka T-Mag.com and T-Nation.com), TheGymLifestyle.com and Wannabebig.com. His newsletters are informative and entertaining, and he has provided reviews for numerous publications, including the inaugural edition of Sport First Aid in Canada. John Paul has authored six books, The Elite Trainer (2011), Mass Explosion (2013), The Business of Personal Training (2014), The Warm-Up (2016), Lean and Mean (2017), and Invincible (2022), and has released two DVDs, Stretching for Strengthening (2003) and Warm-Up to Strength Training (2005), which have sold copies worldwide, featured in several magazines, and been endorsed by industry-leading experts. John Paul has also released four webinars, Strength Training Parameters and Program Design (2013), Body Composition Strategies (2013), The Business of Personal Training (2014), and Injury Prevention Strategies for Aging Athletes (2016), providing the latest cutting-edge information to fitness professionals. Throughout his career, John Paul has consulted for various corporations. He’s worked with law enforcement personnel and has contributed to the Toronto Police Service health and wellness program. John Paul has worked with bodybuilders, fitness models, athletes, and coaches ranging from amateur ranks to national-level caliber. John Paul is one of the premier trainers in Canada. Building a reputation for getting his clients in top shape quickly, his expertise has not gone unnoticed by other health practitioners who attend his private studio regularly for instruction. John Paul has attracted the attention of various fitness-related organizations seeking lectures and workshops. The list includes canfitpro, Certified Professional Trainers Network, Granite Club, Masters Swimming Canada, Ontario Kinesiology Association, Ontario Society for Health and Fitness, Toronto Cricket Skating and Curling Club, and more. Those who experience his presentations have dubbed him “the man with an encyclopedic mind.”

When I started personal training in the mid-’90s, most of my education came from muscle magazines. I had subscriptions to all of them. Combined with years in the gym and thousands of articles and books, I felt ready to train clients. I also had a university degree in kinesiology and health science, but in reality,…

Testosterone is linked to aggression, but perhaps not in the way you think it is. Contrary to popular belief, high levels of aggression may be a result of low levels of testosterone. Those with low testosterone levels try to assert themselves through aggression and they fly off the handle quite easily. On the other hand,…

See that swimsuit above? I used to fit in that before my biceps surgery—now I’m swimming in it! My waist shrunk, but not because of diet. It’s the result of not lifting as heavy anymore. Most people don’t realize just how much the abdominals engage during heavy compound and isolation movements. For years, my core…

Thick-bar training has gained traction over the years, and for good reason—it rapidly improves grip strength and overall strength. You’ve probably heard of training tools like TylerGrip, Fat Gripz, EZ Grips, and Grips FEAR attachments. But there’s another way to challenge your grip and forearms: use kettlebells… in an unconventional way! How to Perform Cannonbell…

It’s hard to settle for less when you’ve had the best. The same way a great personal trainer sets the bar high with professionalism, knowledge, and results, high-quality food makes it tough to go back to the standard fare. My wife and I have been using Brooker’s Natural Meats for years, and I have to…

The classic model of fatigue focused entirely on the body: muscle depletion, lactic acid accumulation, and declining performance. According to this outdated view, the athletes who could push through their “poisoned” muscles were the most successful. But over time, this peripheral fatigue model has been challenged. After all, muscles always have some reserve capacity. Clearly,…

Guest Blog by Mary Catanzaro Summer is always a busy time for my family, and mealtimes can be a little stressful. Making healthy and creative dinners that everyone enjoys is a challenge! To keep things simple, I like to prepare large portions of “favorite” foods that can be used as backup when the main meal…

Most strength programs marketed for self-defense are nothing more than conditioning routines disguised as strength training. They often feature circuit-style workouts with a random mix of weighted self-defense movements. Not only is this ineffective, but it also increases the risk of overuse injuries. A better approach is to focus on developing strength in the weight…

Guys who lift serious weights regularly are usually better equipped to protect themselves if trouble arises. But safety is a concern for everyone—especially for those who may not be as big or strong. That’s where Christopher Roberts and his team at SAFE International come in. They’ve been teaching personal protection for years, catering to women,…

Nearly everyone owns a mobile device today, and more people are turning to coaching apps to guide their workouts. But which app is the best? That’s hard to say, but a recent study examined the quality of 30 mobile coaching apps—and the findings weren’t great. Are Coaching Apps Following Science-Based Guidelines? A study published in…