Mary Mcdermott                               

Education & Certifications                                                                 

Masters of Science in Exercise Physiology from the University of Illinois
Bachelor of Science in Kinesiology from the University of Illinois.

Certified Personal Trainer through the American Council on Exercise (ACE)                                                                  

Certified Group Exercise Instructor through ACE                                                                  

lllinois Certified Physical Education Teacher                                                                  


Mary enjoys working with her clients to develop fitness programs that are effective, sustainable and tailor-made to achieve their specific goals. She is passionate about educating clients on proper training techniques for both the beginner exerciser and the seasoned athlete. She loves the challenge of improving results through functional fitness training and nutrition guidance. Mary is highly motivated by the amazing changes she sees in her clients. Her focus is to give her clients the knowledge and the tools to incorporate a healthy and active lifestyle to reach their fitness and weight loss goals.


After completing her Master's degree in Exercise Physiology, Mary became a Group Fitness Director and took on the joy and challenge of teaching other instructors how to properly teach group fitness classes, as well as teaching a wide variety of classes herself. She believes in the value of commraderie and friendship to help her clients obtain and sustain an active lifestyle. She has experience with children as a physical education teacher, as well as with her own three children. Mary has a very active lifestyle and has participated in many sports including tennis, basketball, speed skating and running. She keeps herself in great shape through strength training, group fitness and running. Mary is highly motivated and committed to her clients success.

Favorite quotes to live by

"The only bad workout is the one that didn't happen"

"Food is the most abused anxiety drug and exercise is the most underutilized antidepressant"

"You're only 1 workout away from a great day"

Sara Krajnik

Education & Certifications

Bachelor of Science in Exercise Physiology from University of Wisconsin LaCrosse
Certified Personal Trainer through the American College of Sports Medicine (ACSM)


Sara challenges her clients past their mental and physical boundaries to improve their fitness capabilities. Sara is passionate about helping her clients look, feel ,move and perform at their very best. One of her strengths lies in her ability to empower others to take an honest look at themselves and break down behaviors that may have prevented them from being successful in the past. Sara has experience working with all types of people from those interested in sports-specific training, to individuals striving to improve body composition and lose weight. 


Sara graduated from the University of Wisconsin-LaCrosse with a Bachelors degree in Exercise Physiology. While at UW-L, Sara was a 4 year letter winner in Swimming and Team Captain of the swim team. She moved to Chicago in 2002, and has been working as a personal trainer since. Sara competed as a national level fitness competitor on the NPC National stage for a few years before returning to her love of competitive swimming and endurance sports. Sara is a recent 3 time Ironman finisher, finishing in the top 10% of her age group. She has also completed multiple Half-Ironmans and 8 Marathons. Sara now lives in Barrington with her fiance and their golden retriever rescue, Romeo. Sara enjoys long walks with her puppy and volunteering with Great Lakes Adaptive Sports Association (GLASA), helping children and adults with disabilities through sports. 

Favorite quotes to live by

“Ability is what you're capable of doing.  Motivation determines what you do. Attitude determines how well you do it."  -Lou Holtz

“You don't have to be great to start, but you have to start to be great."

"To laugh often and much; to win the respect of intelligent people and the affection of children... to leave the world a better place... to know even one life has breathed easier because you lived.  This is to have succeeded."  -Ralph Waldo Emerson

Patrick Durbin


Education & Certifications

Bachelor of Science in Kinesiology from Western Illinois University. 
Certified Personal Trainer through the American Council on Exercise (ACE).


Patrick works with clients who need to lose 100+ pounds, or just a few pounds before attending events such as weddings, reunions or vacations. He assists his clients in creating realistic nutritional habits with a strong focus on meal planning & preparation. He teaches an array of exercise classes including Indoor Cycling, Strength & Toning, Core, Flexibility and Bootcamp. 


Patrick served his country proudly from 2000-2004 and deployed to both Iraq and Afghanistan. After his military service he attended college at Western Illinois University where he earned his bachelors degree in Kinesiology in 2008 and where he met his loving wife April. His hobbies include outdoor activities ranging from running, hiking, boating, swimming, grilling and of course... Exercise! He has one son named Luke born in 2013 and a daughter named Sarah born n 2016, and resides with his family in Crystal Lake, IL. Patrick is the owner and founder of Weightloss Transformation and has been helping people reach their health & fitness goals for over 8 years.

Favorite quotes to live by

"You can't out-exercise poor eating habits"

"Abs aren't made in the gym, they're made in the kitchen"

"Some people dream of success... while others wake-up and work hard at it"

Personal Training provides you with safety, accountability, motivation, results, technical expertise, effectiveness, and efficiency! Let our trainers design a custom workout & nutrition program to help you reach your full potential. 

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Personal Training in Barrington and the Northwest Suburbs