

Born and raised in Montana, Nina Mushin started her fitness journey at the age of 5. She was trained in ballet, then tap and jazz until the age of 17. She played many sports growing up to keep herself active with softball, basketball, volleyball, gymnastics, and track. She was also active with swimming and being a lifeguard at their hometown pool. It was Nina’s coaches in High School that started her with weight training. Since college, she has been active keeping fit at gyms and working out on a daily basis. She believes that keeping active is a priority to staying fit and building a strong immune system.
Nina became involved in the Sales Industry after college and has maintained a Sales background in the Automotive Industry. As busy as she was, she continued visiting local gyms to stay fit. Her and her husband, Don, have owned a home in Big Bear since 2002 as seasonal residents, visiting Big Bear as time allowed. They have become local residents as of September 2017 when Don had a chance to retire from the Automotive Industry as a General Manager.
Together, Nina & Don have found their niche in becoming owners of The Fitness Source Big Bear. Don has always wanted to own a business in Big Bear and with Nina already working at the gym as an employee, they grabbed the opportunity to take over as owners.
As locals they would love to see more residents becoming active and starting or continuing a fitness routine to help meet their fitness goals. They welcome all locals, Seasonal Residents and Tourists to visit the gym when time allows and offer different memberships to meet one’s needs.
Stephanie Weigel Ibasco “the runner” carries 17 years of experience as an Athlete and Elite Master Personal Trainer. Stephanie Weigel, a sponsored ADIDAS athlete, is well known in the “Ultra Trail Running” community for placing in top races around the country. Her drive, determination, and passion lead her to be a top contender and has won several notable races in the many years of running. During the winter months when she is not running, you can find Stephanie snowshoeing the slopes of a mountain. Stephanie is also a sponsored snowshoe athlete by ATLAS SNOWSHOES.
Asides from being an Athlete and Trainer, Stephanie is a vegan advocate. She has embraced many clients into understanding how to love and take care of their health and body by working out and eating right. She emphasizes that working hard only pays off if you pay attention to what you eat.
As an elite personal trainer, ultra trail runner, and triathlete, Stephanie shares her love of training among the many clients she trains. She has created numerous programs based upon a clients needs and goals. Stephanie also specializes on weight loss and menopause. One of her strong suites is online training for health and fitness. Because of Stephanie’s passion to train people anywhere and everywhere she mastered how to instruct and train people at their convenience through virtual training.
Stephanie Weigel holds a degree in Exercise Science and Kinesiology and national certifications in Road Runner Club of America (RRCA), USA Triathlon (USAT), International Sports Science Association (ISSA). In addition to certifications, she has many of years in Marketing and Advertisement. Stephanie’s broad experience also landed her to write articles for several publications such as Runners World.
Mike Ibasco brings 18 years of experience in the health and fitness world. He is an Elite Master Personal Trainer and class instructor and holds national certifications in Athletic Training (ATC) and National Academy of Sports Medicine (NASM) with an emphasis in Sports Conditioning/Training, Corrective Exercise, Physical and Massage Therapy.
Prior to personal training, Mr. Ibasco was an Athletic Trainer for San Jose State University teams as well as National/Professional teams and organization. Most notable was the NBA All Star working for Jordan Brand. As an Athletic Trainer he provided the sports medicine approach in rehab and therapy while performing specialized exercises for the athletes.
During his early years as a personal trainer Mr. Ibasco was an integral part of several expansions in Las Vegas. 24 hour Fitness Agassi Supersport, Rapid Rehab, Queensridge Towers to name a few. He has directed and organized the construction and programs of high end hotel gyms. As an elite personal trainer, Mr. Ibascos’ long resume of clientele involves Las Vegas’ “whos who” in the community. His expertise, dedication and passion for fitness training helped paramount him as one of Las Vegas’ successful personal trainers. In addition, Mr. Ibasco holds speaking and bootcamp workout engagements while specializing in high energy and movement.
Mike Ibasco gain national headlines by competing on the famous NBC show American Ninja Warrior in 2017. The Mountain “Farmer” Ninja Warrior was known for his improvised high altitude ninja training while caring for his private farm of animals. The Ninja also partnered up with a local gymnastics studio to create ninja obstacles for little gymnasts.
Along with his wife Stephanie, they fulfilled their dream of opening their very own facility – The Fitness Source. There they created fitness services and programs in a high end private setting.
- Commercial free weights, plate loaded, and selectorize machines
- Commercial treadmills, ellipticals, bikes, rowers, step-mills.
- Inspired blast classes, TRX, exercise balls, boxing bags, martial arts.
We will be continuously adding new equipment in the following months. STAY TUNED!