Studio Fixx Instructors

Jill Danielle Goodwin is passionate about fitness and especially about group exercise. She has been in the fitness industry for over 25 year. She has certificaitons from some of the top fitness organizations including ACE and AFAA.  She has appeared in numerous fitness infomercials, Starred in FIT TV and Fox Sports West “BodyWaves”, ESPN’s Morning Fitness Shows, videos and more. She is a published author for multiple fitness publications including JUMP, TEEN and SEVENTEEN. She has a strong dance background as a national dance competitor. Jill holds a BA from the University of California, Irvine. She has been honored as Instructor of the Year on two occasions for Sports Club LA/OC. She was known throughout the fitness industry as the "petite powerhouse" and she brings her expertise and many years of training and teaching to every class. She excels in body sculpting, Step, Choreography based workouts, Strong, Core, Cardio dance and more.

She is the managing partner of Studio Fixx.


Shirley Rubin- Professional Trainer, Coach and Instructor
Shirley is a personal Trainer, received her B.S. in Foods and Nutrition, and Criminal Justice.  Shirley grew up in Israel and has lived in the Southern California since 1999. She has dedicated the past 15 years of her life to fitness with passion, and energy. Her goal is to reach out to as many people as possible, so they can lead a healthier, happier and more energetic life. She is certified by AFAA, CrossFit, Powder Blue Production, Healthcare Dimensions, and more, as a group instructor, Fitness Coach and a personal trainer. She teaches Cardio kickboxing, dance, Mat Pilates, body sculpting, Jillian Michael’s “Body Shred” and senior fitness. She has also performed in a few aerobics and Turbo Kick videos. In 2004 she received an award for being the Best Instructor at Total Woman Gym and Spa. Shirley enjoys teaching and inspiring people to be healthy and fit. She loves the great feeling of accomplishing a fun and energizing workout. Shirley will put a smile on your face! And get your booty in shape.                                                                          

Emily Loftiss, After graduating from the University of Alabama (Roll Tide) she moved straight to New York City to try her hand at being a dancer. For 8 years she worked non-stop as a professional in the industry. A few of her credits include Radio City Rockette, Broadway National Tour of Dirty Rotten Scoundrels, Broadway workshops of Josephine, Leap of Faith and many regional shows across the US. On television she has danced on every major station from VHI, MTV, CMT, NBC, ABC, from David Letterman to National Commercials. She has worked with brands like DKNY, Ferrari, Lexus, Nexxus, Mattel, Lucille Roberts, ERIOS Vodka, Hard Rock, Bowlmor Bowling and Knockout Abs Informercials. Also she won National choreography awards, pageant winners have performed her rountines on national tv and choreographed for Ralph Lauren's campaign and Lisa Lamepalli at Radio City Music Hall. Emily has taught dance and fitness for over 17 years and is well versed in all types of dance, barre, spin, weight lighting and boot camp. Emily is thrilled to be apart of the Studio Fixx Family.

Sean Goodwin has been in the fitness industry for over 25 years. He has been certified through NASM and NCCPT as well as being a wrestling coach (bringing his students to State), top personal trainer and boot camp instructor. He was the top contestant on American Gladiators, has appeared in numerous fitness infommercials and fitness magazines.  He has worked with numerous fitness infommercial developement teams to create amazing transformations with their before and after groups. He brings his expertise of fitness and nutrition to really educate and challenge our Studio Fixx Clients. His Tabata class is one of the toughest classes around!

John Manacmul is  a 200-hour vinyasa flow yoga teacher, obtaining his certification through CorePower Yoga. John dedicates his time to providing students an unparalleled experience characterized by fun and intense, high-energy yoga classes with an emphasis on alignment. Through his infectious passion and unbridled enthusiasm, John strives to ensure students leave class feeling stronger, healthier and more balanced, both inside and out. A practitioner of Iyengar yoga, he is currently undergoing an intensive Iyengar method teacher training with Megan Bello.

Morgan Gerhart - As a health and fitness professional, Morgan Gerhart has been teaching private training and group fitness classes for over 12 years. She has been successful at motivating other to realize their fitness goals, primarily through the belief that with consistent hard work, results can be achieved.


She is a NASM Certified Personal Trainer, and holds a Bachelor's degree from Cal State Long Beach. Morgan also holds certifications in TRX Group Training, Spinning, Reformer Pilates, Mat Pilates, and Nutritional Coaching through Integrative Nutrition.


Morgan's passions are all centered around a balanced fitness-oriented lifestyle, including strength training, core stability, cross training, spin and pilates. When she's not teaching one of her many classes, she can be found training for a marathon, hiking or with her toddler at Disneyland.

Katelynn Ansari - Katelynn is a NASM certified personal trainer who is willing to give 120% to her clients. Katelynn has a strong background in sports and has been in the fitness industry for many years as a fitness model, instructor and trainer. She brings her expertise to Primal Fitness and Studio Fixx with programs for all level including new mom's (she is a new mom herself and understands the struggles to regain the strength and fitness level after pregnancy).


To book a complimentary session with Katelynn email us at

To join in the mommy and me 8 week programs

Stefanie Michele - Stefanie has been dancing for the past 22 years and her passion for dancing has never faltered. She is trained in jazz, hip hop, lyrical and competition songleading. She competed for 4 years on her Nationally ranked Championship song team. In her years on song, Stefanie was in the Disney Channel Original movie "Gotta Kick It Up!" as well as being awarded Best Performer 4 years in a row. Stefanie has taught for U.S. Spiritleaders and helped in starting a dance program at Cheer-Rep in Montreal, Canada. 

After competing, Stefanie entered the world of professional dancing. 

Stefanie danced for the Championship Los Angeles Lakers as a Laker Girl from 2007-2009. As a Laker Girl, Stefanie attended numerous charity events, promotions and was featured on various television appearances. 


While on Lakers, Stefanie hosted "Lakers TV", a  live pre game show that was broadcast throughout Staples Center. She did commercials and games during game time. 

Stefanie has always had a passion for helping and inspiring people which eventually transpired into her fitness career. Stefanie is an ACE certified personal trainer and has been training and motivating her clients to a positive life change for the last 4 years and loving ever minute of it! 

Kelvin Garcia - is 24 years old and lives in Orange County; he is certified and has been a Zumba instructor since 2012. He has a variety of Zumba styles he offers including kickboxing, salsa, hip hop, pop, freestyle, and oldies. He holds a BS in Kinesiology exercise science and is cpr certified.
Kelvin also offers private Zumba parties for groups and occasions.


Please contact jill@primalfitnesscenters to schedule a private Zumba party with Kelvin


His Motto: "Life is hard, but it's worth it"


Deidra Lemmon - is a Zumba dance> instructor at Studio Fixx. She studied dance at Orange Coast College, and has extensive experience in ballet, barre, jazz, and Zumba. As a young entrepreneur and passionate dancer, Deidra opened her own dance school, "Dance on Wheels," over 20 years ago. Deidra enjoys creative group performance as a producer and has choreographed numerous shows. Deidra makes instant friends everywhere she goes and her class members are no exception. As your instructor, Deidra will always provide you with fun music, great laughs, and make you glad you came. You're guaranteed to be entertained just enough to forget you're working out. So if you want burn calories but feel like you're at a party, come to Deidra's Zumba class!


16872 Hale Ave. Irvine, CA 92606

16872 Hale Ave. Irvine, CA 92606

16872 Hale Ave. Ste. B Irvine Ca 92606