Health & Fitness | Meet the Personal Trainers


Jenna Bernhardt
Healthy Living Director at Family Wellness

I graduated NDSU with an Exercise Science Degree. I have been personal training for 7 years with a National Academy of Sports Medicine certification. I love learning new ways to incorporate fitness, and have obtained certifications in Silver Sneakers, TRX, Kettlebell, HITT, Tabata, Bodyweight, Tires, Ropes, and Squats, and Circuit. I have a strong passion for helping people at any stage of their fitness journey. I am also the coordinator of a free cancer survivor program, “Livestrong”. My fitness staff belowe are professional, experienced, and ready to help you! They have clients that range from youth, athletes, and seniors! 

Lisa Dingeman
 I am a personal trainer certified through National Academy of Sports Medicine. I also hold a specialization for Women's Fitness and Senior Fitness. I am a wife and mother of two small children. We enjoy anything outdoors that keeps us together and active. I am committed to bettering the health and wellbeing of anybody who is looking for the commitment of a healthy lifestyle change. If that's you--let's talk!


Amy Nitschke
I was born and raised in Mandan, ND. I graduated from the University of North Dakota with a degree in Exercise Science. I have a Personal Trainer Certification in ACSM.Throughout my life I have been very active in sports as a basketball and soccer player, but really started taking interest in health and wellness during college. I am very passionate about helping people, not only reach their fitness goals, but teaching proper technique and implementing a wellness program that creates lifelong habits.My personal training sessions will not only push you a little beyond your comfort zone, but will also give you new ideas for FUN exercises to try!!! 


Alexandra Sanford
Alexandra moved to Bismarck in 2015 and joined the Bismarck YMCA family in January, 2017. She has an extensive background in fitness and is truly passionate about the profession. Alex began her career at a Twin Cities area YMCA, working as a NETA certified personal trainer and group fitness instructor for 10 + years. Her group fitness background includes classes in TRX, Turbo Kick, Bootcamp, Women on Weights, and Youth Fitness. Alexandra enjoys assisting clients in achieving and sustaining a healthy lifestyle.


Rosie Vandehoven
I have been a certified personal trainer through AFAA for 3 years now. Over the past 3 years I have advanced my knowledge of fitness through many certifications: Tabata, Kettlebell, Bodyweight, Circuit, Tires, Ropes, and Squats, and Jillian Michel’s –Making the Cut. My professional interests are circuit training, time based training, and strength training. Rosie has a huge passion for being staying fit and healthy, and helping people reach their goals. 




Josh Schlag
Born and raised in the BisMan area, Josh is an active individual who obtained his Personal Trainer Certificate in 2013 while serving as the Training Non-Commissioned Officer in the United States Marine Corps. Josh started working with Marines with body composition issues, and low motivation until he earned his Strength and Conditioning Certificate through ISSA. Josh then worked with focused  Marines who wanted to build muscle and increase strength. Josh emphasizes on form while executing exercises with clients. He enjoys teaching and motivitaing clients at any place in their fitness journy!  

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