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Mike StrangeMike Strange (Owner) 

Mike grew up in Seattle and graduated from the University of Washington. He worked for the US Forest Service as a Forester for 25 years in Washington and Oregon. After retiring in 1993 Mike bought a small gym in McMinnville, Or. Three years later he closed that gym and reopened in a new location as a Gold’s Gym. Three years later he opened a second Gold’s Gym in another town, before selling out in 2004. Mike moved to Sierra Vista in 2005 and established Summit Fitness.

Janet Strange (Account Manager and Kids Room Manager) 

Janet Strange 2Janet met Mike at the University of Washington in 1965, where she later graduated with a BS in Nursing. Working as a nurse in many positions, she spent the last 20 years as a nursing supervisor. Now retired, Janet has been helping Mike since they bought their first gym in 1993. Janet is the Bookkeeper and manages all members accounts. She also volunteers at Ramsey Canyon.

Tony RiveraTony Rivera (Sales and Facility Manager)

Tony graduated from San Diego State with a BS degree in Kinisiology with emphasis in Fitness, Nutrition, and Health. He holds personal training certificates from NSCA and ACE and has worked many years in the fitness field in California and Arizona. Tony also has considerable experience in automobile sales. Tony has been with Summit Fitness since 2006. Tony and wife Martha have 2 children.


Vannessa Schlaegel (Group Fitness Manager) 

1654Vanessa spent most of her childhood in Sierra Vista, but did move away long enough to meet Chuck, marry Chuck, and then have the Army move them back to Sierra Vista in 1995. Vanessa started at Summit Fitness as a member in 2007, and finally found her calling as a Group Fitness Instructor in 2011. She has been GFM since 2012. She is excited about helping people discover new ways to enjoy exercise and make it a lifestyle for the whole family. Currently certified in Group Kick, Group Step, and Group Power, she plans to learn more so she can help our GX program improve. Vanessa and Chuck have 5 beautiful daughters and 4 grand children.



David Gunckel (Personal Trainer)David G

David believes that physical fitness can be improved upon at any stage of life. As a personal trainer certified by the National Academy of Sports Medicine, David is eager to help people of all ages and abilities, improve strength, flexibility, core, and cardiovascular fitness so that life can be enjoyed to the fullest.  David is former competitive bodybuilder, winning first place in the Copper Classic open middleweight and master’s categories in 2004 and 2005. David served as Director of Library Services for the City of Sierra Vista for over 27 years. He holds a B.A. in Elementary Education and Masters of Library Science degrees from the University of Arizona.

Shelbi  Strube (Personal Trainer)

Shelbi StrubeShelbi Strube graduated from Taylor University with a BA degree in Exercise Science. She is certified as an Exercise Physiology Specialist and plans to continue her studies specializing in Strength and Conditioning and Nutrition. Shelbi has done personal training in the past during internships and on her own time, including soccer specific training. For personal training, Shelbi specializes in HIIT. Shelbi also played collegiate soccer for four years and specializes in footwork and cognitive awareness.

For more information about us, or to
speak with any of our team members,
please contact 520-459-3668

    • Location

      934 E Fry Blvd,  Sierra Vista, Arizona, 
      Phone: +1 520-459-3668

      Hours of Operation
      Monday to Friday 5am – 10 pm
      Saturday 8am – 8 pm
      Sunday 8am – 6 pm

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