Meet our capable, caring, smart team of instructors! All of us here at Oxygen consistently participate in continuing education so that we can keep offering a high level of specialized instruction year in and year out. This isn't a hobby for us - we take your time and your needs seriously. Though there is no legal license or governing body for most types of fitness, Pilates included, we hold ourselves to the highest standards and never consider ourselves "finished" learning. Join us and experience the difference of working out smarter!

Amy Cieslik

Founder, Studio Manager

Pilates, O2 Fit, Barre

I have a passion for movement. A competitive gymnast in my youth, I have transitioned though several sports and activities throughout the years including track and field, distance running, cheering and tumbling, swimming, collegiate sailing, and martial arts. Most recently, I have completed several sprint triathlons, two Olympic distance triathlons and continue to train year round for upcoming races and events. I try to stay as well rounded as possible - one day I am on the reformer, maybe the next day I'm in a Crossfit class!

In my personal practice, Pilates is a not an option but a necessity. I believe unequivocally that Pilates keeps my muscles strong, my strength balanced and my body injury free through all of my varied training, sports and interests.

Amy's Certifications & Training

  • Bachelor of Science in Exercise Science from Boston University (2006)
  • Certified by Balanced Body in Pilates Mat and Reformer (2011)
  • Balanced Body trained in Chair, Ladder Barrel, Tower & Cadillac by Zayna Gold (2011)
  • Formerly Certified in Stott Pilates Mat with Carol Burnham (2007)
  • Formerly Certified in Power Pilates Beginner and Intermediate Mat Work with Kathy Van Patten (2006)
  • Boston Body Pilates Pre/Post Natal Trained by Zayna Gold (2011, 2012)
  • Boston Body Advanced Reformer Choreography Trained by Katherine West (2011)
  • Boston Body Barre / Balanced Body Barre Trained by Zayna Gold (2011)
  • Certified Spinning Instructor (2014)
  • TRX Qualified Instructor, training with PJ O'Clair (2015)
  • Barre Boston Trained with Julie Erickson (2015)
  • Currently an Apprentice under Julie Erickson of Endurance Pilates and Yoga for classical, authentic Pilates certification

Special Populations Experience:

Pre and post natal, competitive athletes, seniors, children, clients with diabetes, hypertension, osteoporosis/osteopenia, osteoarthritis, rheumatoid arthritis, fibromyalgia, scleroderma, M.S., knee, shoulder and lower back injuries, herniated or bulging discs, recent knee or hip replacements, and various other orthopedic concerns. Exercise and physical activity can help with such a wide range of physical and mental ailments. With the proper safety precautions, anyone can achieve the benefits of exercise.


Alyssa Dedrick


Alyssa started her journey with Pilates over 10 years ago when she was a competitive figure skater. Pilates gave her the core strength to center her spins, the endurance to skate faster and longer, and the strength to jump higher than before. Alyssa began to study Pilates instruction in 2006 and continues to do so.

Alyssa is BodyAccess Certified in both Pilates Mat and Reformer. She also recently completed Endurance Mat I, II, and III trainings as a part of furthering her personal and professional Pilates practice, and has continued her classical Pilates education into 2017 and beyond. Alyssa has a BA in Psychology and currently is the Director of a Family Resource center at Beverly’s Northshore Education Consortium. She hopes to assist any individual that is looking to better themselves by way of mind and body.


Erin Hamilton


Previously a professional dancer with extensive classical training, Erin has branched off into teaching a range of fitness styles with a focus in private, equipment based, Pilates instruction. Erin graduation from the University of Pittsburgh, Pittsburgh, PA in 2006 with her BA (Marketing), and is Pilates certified with Powerhouse Pilates (PHI)  and Kelly Kane School of Core Integration, both based out of NYC.

Erin teaches all levels of mat and equipment classes as well as private training sessions utilizing all Pilates equipment. Her sessions often involve a heavy focus on biomechanics, and Erin has experience dealing with compromised clients who have multiple physical issues. She has also worked as a theraputic Pilates instructor at H&D Physical Therapy (New York City) - Working with physical therapy patients to help them transition from PT based work and stay functional in daily life by the use of pre-Pilates methods and basic equipment work.


Michelle Kimelman

Pilates, O2 Fit

Michelle spent twelve years of her youth as a competitive swimmer, which sparked her passion for health and fitness from a young age. Her day as a swimmer was spent 6-7 hours of training. Once she completed her career, she needed to fill her time with other forms of physical activities because her day felt empty without a fourth of her day spent training. She quickly filled her spare time with hiking, rocking climbing, bouldering, and running. She discovered a variant of Pilates a little over five years ago when she was pregnant with her son. She fell in love with the practice and has only fallen more in love with the method more over the years.

She finds the practice essential for her physical, mental, and spiritual health. The mind-body connection that comes from Pilates has become the focal point that she brings into all movement practices she is involved in. 

She has a BA in Psychology and a minor in Biology from UNLV. One of her passions is helping others. Prior to Pilates she worked in a wound care/pain management facility helping patients rehabilitate from various injuries, accidents, autoimmune diseases, and more. Michelle has trained in all levels of Pilates Mat and Reformer with Balanced Body, and has mentored under Amy Cieslik since May of 2017. She is now continuing to evolve in her practice and has plans to continue her Pilates/movement education with authentic classical Pilates comprehensive teacher training.

Vivian Varbedian

O2 Fit, Pilates

After a recent back injury, Vivian found rehabilitation at Oxygen Mind and Body turning to Pilates to regain her strength and flexibility.  It was during this period of rehabilitation that she developed her passion for Pilates and its benefits to overall physical performance.  As her strength and flexibility increased so did her intensity. She quickly found a new love for TRX and the ability to develop strength, balance, flexibility, and joint stability simultaneously.  So it is no surprise that she quickly became a fan, mixing in her experience and love of Martial Arts with TRX for an all in one workout. In her class, you will get a great workout, have a good time, and leave feeling successful. The combined class of kickboxing and TRX is the best workout you'll ever experience and will tone you from head to toe.

Vivian’s love of kickboxing began in Los Angeles, Calif. in 2000 when she joined HKD Martial Arts Academy with had a strong foundation in practicality,  physical fitness, and an emphasis on mental/spiritual growth. An incentive to start the sport was to get a total body workout in one class and feel strong as you learn a form of self-defense. Martial Arts and Kickboxing challenges your body to work as a whole for head-to-toe. Her strong passion for Martial Arts, lead to earning her Black Belt and becoming an instructor.  She loves seeing clients transform as they improve coordination, strength, and endurance. Her goal is to be supportive and energetic. Vivian believes hard work coupled with encouragement will bring out the best in people.


Sheila Wescott


Sheila stumbled in to her first yoga class in an effort to keep her workout routine new and exciting.  But what she discovered was a whole lot more....a sense of inner peace that began her spiritual journey and an unmatched physical workout!

As her love for yoga grew, life presented an amazing opportunity to obtain her 200 hour teaching certification through a month-long intensive program at Frog Lotus Yoga located in the Berkshires.  Sheila's studies included asana, pranayama, anatomy, and Yogic philosophy.  Through ongoing education, Sheila has acquired additional certifications in both children's and prenatal yoga.

Sheila's intention is to create a warm, nurturing environment in which students can discover the amazing capabilities of their own bodies while remaining spiritually grounded and self-loving.  And she always encourages a sense of humor!

Olivia Evans


Olivia began practicing yoga in 2008 and immediately fell in love. Her less traditional path of training started with completing a 480-hour internship in 2012 under Maggie Fiorella Winter, OTR/L RYT 200. She has since continued her yoga education under nationally and internationally renowned teachers Timothy McCall, Lauren Toolin, Seane Corn, Liz Owen, and Amy Ippoliti.

In 2011, she participated in a year-long service project through Off the Mat, Into the World, raising significant funds and awareness for rescue and rehabilitation of sex trafficking survivors in India. In 2013, her undergraduate thesis, Prenatal Yoga's Effects on Women's Sleep, Pain, Mindfulness, Stress & Mood won Endicott College's Andler Thesis Award in Psychology. She was a Contributing Writer for Sivana Spirit & has been featured as a "Spotlight" for FitProNow's online blog. Olivia’s classes focus on breath and are grounded in the belief: “breathe and everything changes”.

Olivia has basic Pilates Mat training under Amy Cieslik and finds Pilates to be helpful in her personal mind and body journey alongside her passion for yoga.



Melissa Rutherford

O2 Fit

A life long self-described "fat girl" and competitive active girl, Melissa became committed to exercise and healthy lifestyle in her early twenties.  Over three years she lost 130 lbs and made physical activity a must have activity. Having discovered both Pilates and Yoga, Melissa assists behind the desk, and has been inspired to teach; becoming a certified Tae Kwon Do, Spinning and TRX Instructor. Melissa has basic Pilates Mat training under Amy Cieslik and enjoys Pilates as a supplement to her other workouts.