John C. Yobst – owner, founder

John currently lives in Vernon, Connecticut with his wife, Amy.

John started in the fitness industry as a competitive bodybuilder and personal trainer in 1989. After sustaining a serious leg injury that required physical therapy, John was inspired to attend college and learn more about the human body. He studied sports medicine and completed 1000 clinical hours in athletic training working in various settings from high schools to colleges. After growing tired of the “gym scene”, he wanted to open a facility that would foster a good environment for people to acheive their fitness goals. John is a firm believer that everyone, if given the proper tools can change their bodies and their lives.

In 1996, he founded Lean Physique, and in 1998, opened Lean Physique personal training studio in South Windsor ,CT, Connecticut. John has been a national fitness presenter with AAAI/ISMA teaching other trainers on how to become certified. John also developed and taught cirriculum for an international fitness organization. John has received awards and special recognition from the South Windsor Chamber of commerce as well as the state legislature for his success and contributions to the local business community. With the value of over 19 years in the industry, John brings his many years of dedication and knowledge to all of his clients and staff members of Lean Physique. John's clients often comment on his positive energy and how they thrive off of it to power through their own workout sessions.

John competed as a natural bodybuilder from 1992-1996 with many top placings as well as winning many best posing awards in the American Natural Bodybuilding Conference. After ending his competitive endevours John became a judge in the ANBC and was selected to judge the 1997 Natural United States bodybuilding championships in Pittsburgh PA. John is now  regional head judge for the OCB/IFPA and judges 6-8 contests per year.

Head Judge ocb/ifpa

Some Articles written by John,and later published include-

His certifications include:

  • Certified personal trainer
  • Advanced certified personal trainer
  • Sports nutrition
  • Post-rehabilitation trainer
  • Certified bodybuilding judge
  • Sports Conditioning Specialist
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    Gretchen Pauciello-Personal Trainer

    Gretchen joined the Lean Physique team in April 2007,we are very pleased to have this energetic woman as a new addition to our team!

    Gretchen is married and resides in South Windsor with her husband and three children.She became inspired to pursue a career in the fitness industry after working with a personal trainer herself a couple of years ago. Through this she was able to achieve her own goals of losing 35 pounds and thus felt compelled to help others do the same for themselves.

    Cerification-Certified Personal Trainer


    Matt Kostek-Certified Personal Trainer,PhD Candidate

    Matt joined our team back in 1999 and has since completed his BS in Exercise Science,his MS in Sports Management and is now in his final year of pursuing a PhD in Kinesiology from The University of Connecticut in Storrs. Matt joins us again from time to time. 

    Dawn Dominick-Certified Personal Trainer-(available at Lean Physique)

    Dawn lives in Coventry . Dawn is also a Licensed massage therapist which gives her a very clear understanding of the human body.Dawn has been involved in fitness for many years and has extensive knowledge working with the "senior" population,she teaches weekly fitness classes at a local senior living center.We are pleased to add dawn as part of the Lean Physique team as she looks forward to working with many types of clients to help them achieve their goals.

    Tammy Pawlowski-Certified Personal Trainer,Issa (available at Lean Physique)

    Tammy lives in Lebanon and has two children.Tammy has been a client of Lean Physique's owner John for four years and likes Lean Physique so much she decided she wanted to train clients here! Tammy is an accomplished bodybuilder with Two wins to her credit thus far including the 2006 OCB Spirit of  AMERICA OVERALL title as well as the heavyweight class in the 2006 NPC Vermont state championships.Tammy is the epitomy of the fitness lifestyle living it everyday through her training and recovery from major back surgery that she endured in 2006.

    Nic Branson-Certified personal trainer (available at Lean Physique)-

    Nic specializes in kettlebell and core training. He is certified through RKC (russian kettlebell concepts). Nic also has vast knowledge working with athletes at all levels. Nic is also a former drug free strongman competitor,this gives him a different insight into training concepts. He is currently working on his Bachelors Degree at the University of Connecticut in Kineseology. Nic will provide you with a challenging and effective workout everytime!

    Danielle Spiro-Certifed Personal trainer

    Danielle graduated from Springfield College in May 2009 with a Bachelors degree in Applied Exerscise Science. There she became an accomplished scholar-athlete playing varsity softball and being honored as an all-american in her sport. All those years of training for softball has given her a unique insight into sport specific training. Danielle began with a personal trainer herself at the age of 14. .That inspired her to enter the field of fitness. Danielle enjoys anything having to do with the outdoors. We are pleased to have her on our staff!

    Attention personal trainers..you could be here too!Positions available.

    All content property of Lean Physique. This information is not intended to take the place of medical advice. Always check with your physician before beginning any exercise or weight loss program.

    Why Lean Physique

    Beware of so called "personal trainers" who may not even be certified or are "club certified". Lean Physique is the only personal training and weight loss facility in the State of Connecticut that requires potential staff people to take and pass a written exam. This ensures that our studio is staffed with the best EDUCATED trainers anyplace.

    Second floor,Lean Physique.CT personal training studio
    Connecticut personal trainers are Lean physique. Leading the way in South Windsor fitness.
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