MEET THE TEAM
JOHN A. DUFFY JR.
FOUNDER
John is the mastermind behind the Cardio Sport® Exercise System. John’s deep knowledge of how the human body functions, coupled with his supreme mastery of how to apply his knowledge to get elite results, has been the foundation from which the Cardio Sport Exercise System was developed.
Over the past decade and a half, John has personally trained thousands of people with extraordinary results. Since 2014, he has also taught hundreds of instructors, trainers, athletes, PE teachers, and coaches to use his methodologies through Cardio Sport’s national certification initiative. Through that program, Cardio Sport trained thousands and thousands of people around the world.
HILARY HARTMAN
BUSINESS DEVELOPMENT
Hilary works in Business Development. She became involved with Cardio Sport 7 years ago, first as a participant. She is a long-time entrepreneur, with over a decade and a half of experience working to bring innovation to market.
From the moment she first walked into a Cardio Sport class led by John back in 2012, she knew she had to be a part of sharing it with the world.
Never before has there been a program that truly engaged the mind of athletes (and their bodies) like this program. As a long-time purpose-driven athlete herself, mainly with individual sports like snowboarding and white water kayaking, she couldn't get enough. Her passion was ignited and her mission to bring Cardio Sport to the world began.
AMY SPENCER
BUSINESS DEVELOPMENT
Amy played sports her entire life. An avid softball lover, post college Amy struggled to find something that kept her motivated to stay working out and loving it. She then found Cardio Sport and it changed her life. Amy works a part of the Cardio Sport National Certification team.
