Poliquin is a native of Ottawa, Ontario, born March 5, 1961. He originally became interested in weight training through the influence of his karate sensei. While working on his Masters Degree in Exercise Physiology, Poliquin began a career as strength coach, and has since trained numerous Olympic and professional athletes. His academic career included articles for several peer-reviewed journals in the fields of exercises science and strength and conditioning. His training theories were introduced to the bodybuilding community in 1993 through his articles for Muscle Media 2000 magazine, and after 1998 through the online and print versions of Testosterone Magazine (now known as T-Nation). Poliquin has also published several books, many of which have been translated into 12 different languages, including Swedish, German, French, Italian, Dutch, and Japanese. As a columnist, he has written over 600 articles in numerous publications. His first book The Poliquin Principles formatted a basic summary of his training methods and provided insight into the training regimens of some of the world's top athletes. Poliquin, who is fluent in English, French and German, also promoted and helped popularize German Volume Training.
After relocating from his native Canada to the United States in the late 1990's, Poliquin founded Poliquin Performance, opening the first Poliquin Performance Center in Phoenix, Arizona in 2001, and the Poliquin Strength Institute in East Greenwich, Rhode Island in 2009. Throughout this time he certified coaches in the Poliquin International Certification Program (PICP), which includes a body hormone profiling method, which he invented, called BioSignature Modulation. In September 2013 Poliquin parted ways with Poliquin Performance (now re-named The Poliquin Group). He continues to provide information in the fields of training, performance, and nutrition through the website and Facebook Group of a new endeavor called Strength Sensei.
^Anderson, Craig. "Top Ten Q&A for Hockey Players". Retrieved 21 April 2012. "Gary hired Poliquin Performance to just get back in shape and improve his quality of life. After a few months of training, his strength and mobility improved and he started to feel like he could possibly play hockey again. At that point his decision to return to the NHL was definite."