Meet the Stars at our Core.

Ruth Neil Stover





Owner, Director

Phone: 206-914-0112

Ruth’s fitness career includes a wealth of education, experience and knowledge in human anatomy and movement; with a background in fitness that spans more than 20 years. As an AFAA certified fitness instructor she has years of teaching experience in a wide variety of group fitness formats, among them; dance, yoga & Pilates. Her training for certification in Pilates has been through years of study through STOTT PILATES®.

Ruth is a fully Certified (Advanced level) STOTT Pilates instructor. She is also certified in Yamuna Body Rolling®, a form of body sustainability that highly compliments Pilates. Ruth has instructed at a national level as a Pilates specialist, training other teachers the essential principals of Pilates.

Ruth’s teaching philosophy is that no matter what level of fitness we are, each one of us can start where we are right now and begin to create better health in our bodies through movement, education and awareness.  She believes that her role as a teacher is to help people gain awareness of their bodies, so that they can move with flexibility & strength in a more conscious way in their everyday lives.

Ruth uses all of her training and knowledge of the body and its energy fields to assist students in healing and improving their quality of life. Ruth is a 2006 graduate of NW School of Healing, a 4 year program studying energy work modalities in personal healing, and is a Reiki Master. She is currently enrolled in a Nutritional Therapy program studying to become a Certified Nutritional Therapist.


Lisa Nihem





Studio Manager

Pilates Instructor
Phone: 253-273-8929

Lisa is a fully certified (Advanced Level) STOTT PILATES® Instructor. She first discovered Pilates while she was working long hours and had a long commute. It was the only time in her week where she could be free from the stresses of daily life. She was able to be fully present, and aware in her own body and mind. She then fell in love, and decided to pursue her Pilates career.

Lisa is a certified Nutritional Therapy Practitioner.  Graduated from Nutritional Therapy Association out of Olympia.  She understands that nutrition is the foundation to optimal health and that nutrition along with exercise will create a healthy body.

Lisa’s life has always been influenced by health and fitness. She is a lifelong athlete, involved in years of competitive sports. Lisa loves to snowboard, skateboard, hike, and to have great adventures all the time. She attributes Pilates to improving her stability and endurance in all of these sports and pastimes. Pilates has completely changed her posture, strength, health, and her life. Lisa enjoys mixing it up too. She is certified in other forms of fitness including: TRX Suspension Training®, willPower & grace®, Zen•ga™ and Yoga.

She believes that everything complements each other, and a well rounded exercise routine will produce the best results for a healthy you! Lisa believes that everyday should be filled with laughter and fun! Life is now, and it is a great day to live! She believes that we must always keep learning, growing and evolving. The more we learn, the more we realize what we don’t know.


Erin Finney





Yoga/Pilates Instructor

Phone: 206-227-1206

Erin discovered yoga at a local community college in 2001 and decided to share her passion and began teaching in 2005. She has taken several certification classes through YogaFit®, including their Anatomy, Kids and Pre/Post Natal programs, and recently trained with Jaya Yoga Training based out of Hood River, Oregon.

Yoga has taught Erin to honor the body and the world around. She encourages students to let go of expectations and judgment in order to fulfill the mind/body experience. Her classes focus on proper alignment and help to balance strength, flexibility, and relaxation for every age and any fitness level.

Erin will always consider herself a student, and is eager to continually grow in her practice. She is currently working on her STOTT PILATES® certification and is training at Bodycenter Studios in Seattle.

Angie Waterman





Pilates Instructor

Phone: 425-286-4759

Angie is very familiar with the struggle to maintain a healthy lifestyle. After a weight gain that put her well over 260 pounds, it took dropping out of a hiking class to realize that something needed to change. It had been a long journey of trying different exercises, personal trainers, and gym equipment when she finally stumbled through the doors at Corestar Pilates. After signing up for a Beginning Pilates class, she was hooked.

After four years, and trying pretty much everything Corestar Pilates has to offer, she finally figured out what she wanted to be when she grew up and started her training to become a Pilates Instructor through BodyCenter Studios. Angie is now a STOTT PILATES® certified instructor with the education and life experience to help others move beyond their struggles on the way to achieving a healthy lifestyle


Paige Erickson





Pilates Instructor

Phone: 206-351-3458

Paige was introduced to Pilates through a friend in 2006. She began taking classes, group and private, 2 to 3 times a week. At first, she wasn’t sure if this was the right method for her, because in all of her sports and exercise, no one had discussed “the core,” how to access it, or even why it is important…until Pilates. However, after each class she always felt great and ready for the day with good energy. She began feeling the changes in her body as she continued in her classes. Paige noticed that she could implement the Pilates fundamentals in her recreational activities like snow and water skiing, which made them more enjoyable. It also helped make running more effective for her.

After a long career in the corporate world, Paige made the leap from Pilates student to instructor. She completed the STOTT PILATES® training course at Bodycenter Studio in Seattle, which included a 60 hour apprenticeship. She is excited to share what she has learned, experiences, and to help clients reach their individual fitness and life goals.