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 it comes to counting reps, how you do it can make a difference in both performance and motivation. According to Charles Staley, creator of the Escalating Density Training System, counting down is psychologically easier than counting up. Knowing how many reps remain keeps you focused on the task ahead rather than dwelling on what’s…

My recent post on aluminum coffee pots sparked some interest (read it here). Some people have asked whether cooking with aluminum foil poses similar health concerns. A study published in the Journal of Environmental Protection and Ecology (DOI: 10.1016/S1452-3981(23)19556-3) examined this issue—and the results are concerning. What the Research Says Researchers tested aluminum leaching from…

Q: Hey John Paul, Take a look at this photo of Jessica Biel. That’s how I want to look by January 1st. My husband and I are heading to the Caribbean for a well-needed vacation! I’ve had a couple of kids, and with 40 around the corner, I’m tired of feeling flabby and weak. It’s…

To maximize intra-abdominal pressure (IAP) during strength training, research indicates that you should breathe deeply (about 75% of maximum) into your belly and hold that breath throughout the rep, exhaling only after completing the movement. This technique provides optimal spinal support, enhances strength, and reduces injury risk. Breathing and Athletic Performance Proper breath control isn’t…

If there’s ever a time not to draw in your navel, it’s during exercise. In fact, this practice should be abandoned altogether unless used for specific rehabilitation purposes. “Sucking in your gut” shifts emphasis away from the working muscles in most gym movements and can actually lead to injury. Yes, keeping the core tight is…

A classic debate among fitness professionals is whether the abdominals should be divided into upper and lower sections. Some experts argue that the abdominals function as a single muscle, with no distinction between upper and lower portions. However, research suggests otherwise—you can selectively recruit different segments of a muscle depending on the type of exercise…

If you want to build a serious set of abdominals, make sure to include these foundational exercises—and their variations—into your routine: squats, deadlifts, pull-ups, and standing overhead presses. These multi-joint movements demand strong abdominal engagement to stabilize the core, especially under heavy loads. It’s not uncommon to hear people complain of abdominal soreness a day…

More people are concerned about their midsection than any other body part. The core comprises roughly a third of the body, yet it receives full attention in the gym. Sporting a great set of abs is high on anyone’s list. Let’s face it—if the core is in shape, the whole body is in shape! The…

A single-leg squat is a rear-foot-elevated split squat performed on a high surface like a bench rather than a step. It’s a great exercise for stretching the hip flexors, but you can enhance the effect by extending the arm on the same side as the elevated leg while holding a weight. I call this variation…

People often ask if I have a nutritional vice. I suppose I have two, but I don’t consider them that bad. I enjoy a glass of red wine with dinner on the weekends, and every day, I have a double espresso with breakfast, followed by a single shot after lunch, and sometimes after dinner. I…