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Keith Schreffler


  • Active Release Techniques (ART):

    • Spine

    • Lower Extremity

    • Upper Extremity

    • Nerve Entrapment

    • Masters Program

    • Ironman Provider

  • Myofascial Trigger Point/Tender Point Dry Needling

  • Functional and Kinetic Treatment with Rehabilitation, Provocation and Motion (FAKTR-PM)

  • Fascial Distortion Model (FDM) Lower Region

  • Functional Movement Screen (FMS) Professional – Levels 1 and 2

  • Selective Functional Movement Assessment (SFMA)

  • Sound Assisted Soft Tissue Mobilization (SASTM)

  • New Trends in the Prevention of Running Injuries by The Running Clinic

Meet Our Team

DR. Keith Schreffler

Founder of ArCTIC

"I can feel the knowledge in his fingers."  That's what patients say about Dr. Schreffler.

Dr. Schreffler has been listening and finding the source of his patients' pain in Arlington, VA, since 1998.  As he says, "My driving force is quality longevity. In the early years, I quickly went from managing patients' pain to finding the root source internal and external factors of stress and began helping patients manage pain by improving stress and lifestyle."

Most often, Dr. Schreffler treats patients with acute and chronic pain, pain from injury or training, rehabilitation, and other health and performance issues. Dr. Schreffler actively uses a combination of Active Release Techniques (ART), Functional Movement Screen (FMS), Selective Functional Movement Assessment (SFMA), Dry Needling, and Sound Assisted Soft Tissue Mobilization (SASTM) to treat his patients and strengthen areas of weakness.


Dr. Schreffler is a 1993 graduate from Life Chiropractic College in Marietta, Georgia. He completed his undergraduate studies at Valdosta State University, in his hometown of Valdosta, Georgia, where he majored in biology. Dr. Schreffler received his license to practice chiropractic from the Virginia Board of Medicine in 1996. He is a member of the American Chiropractic Association and the Virginia Chiropractic Association. He is a diplomat of the National Board of Chiropractic Examiners.


A long-time resident of Arlington, VA, and a life-long commitment to fitness and quality longevity, he has participated in two inline skating ultra-marathons for Team in Training, raising funds for the Leukemia and Lymphoma Society. ARCTIC (formerly Schreffler Chiropractic) has been a corporate sponsor of Skater's Quest, the annual Skate of the Union , and the former annual Acumen Solutions Race for a Cause 8K. As a testicular cancer survivor, he volunteers for the American Cancer Society using his experience to heighten cancer awareness. You can often find him inline skating on the W&OD or fly fishing in nearby streams on the weekends.

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  • Logan Technique

  • Full Spine/Diversified Cranial Technique

  • Thomspon Drop Technique

  • Extremity Adjusting

  • Instrument Assisted Soft Tissue Mobilization (IASTM)

DR. Kimberly Rodriguez


Dr. Kimberly Rodriguez practices in a way that every patient has individualized care. Her goal is to make every patient feel comfortable with chiropractic care and use gentle and specific techniques. She practices with a wellness mindset focused on balancing, aligning, and improving her patient's entire body in a physical, energetic, and emotional way from head to toe


Dr. Rodriguez utilizes many different adjusting techniques to help her patients achieve their health goals. Her base foundation techniques are Logan Technique, Full Spine/Diversified, Cranial Technique, Thompson Drop Technique, Extremity Adjusting, and she also uses Instrument Assisted Soft Tissue Mobilization (IASTM ) technique. She enjoys working with babies, pregnant moms to support them in their prenatal health journey , and beginner athletes.


Her passion for Chiropractic began at a young age; a Chiropractor was the first Doctor to see her beyond her size and educated her about the power the body has to heal on its own when it is in proper alignment. 


Originally from Washington D.C.  , with Guatemalan Roots. Dr. Rodriguez attended Virginia Commonwealth University, earning a Bachelor of Science in Health, Physical Education, and Clinical Exercise and a Minor in French Language. She graduated with a Doctorate of Chiropractic degree from Life University in Marietta, GA, in 2019.


Dr. Rodriguez began playing sports at a young age and fell in love with rowing and running throughout high school and college. She remains active in her community with a passion for empowering others in sports. She is the Founder of Latinas Running, which empowers runners and walkers, and promotes diversity, and body positivity. She has been featured on Runner's World Magazine, collaborated with communities, and worked with brands like Columbia Sportswear, lululemon. Dr. Rodriguez is a legacy lululemon ambassador.

Dr. Martin C. DonnelLy


Dr. Donnelly works with athletes of all types and abilities, from endurance athletes and military service members to weekend warriors. He uses various techniques to help clients achieve their health, fitness, and mobility goals. He teaches his clients to manage whatever obstacles may be affecting their performance and comfort. 

Dr. Donnelly received his undergraduate degree from Loyola University, Baltimore, Maryland, and his doctorate from the University of Bridgeport School of Chiropractic, Bridgeport, Connecticut. He has held teaching, clinical, or supervisory roles for the University of Bridgeport, Bridgeport, Connecticut; George Mason University, Fairfax, Virginia; D’Youville University, Buffalo, New York; Palmer College of Chiropractic Florida Campus, Port Orange, Florida; and LIFE University, Marietta, Georgia. He was an early adopter of the National Committee for Quality Assurance (NCQA) certification for back pain and supports the Choosing Wisely campaign of the American Board of Internal Medicine (ABIM) foundation.

Dr. Donnelly has been a preferred provider for the Washington Redskins and Washington Wizards cheerleaders, an emergency medical technician (EMT), and a Team in Training volunteer with homeless outreach organization Back on My Feet and the Susan G. Komen Foundation. He has been a guest speaker for the Medical Society of Northern Virginia, the DC Pretrial Association, the Department of Homeland Security, the IRS, Boeing, and General Dynamics.  

Dr. Donnelly has long-appreciated the value of exercise and fitness. In high school, he danced classical ballet at a pre-professional level and was a varsity gymnast. Now, he keeps fit by hiking and kayaking. Born and raised on Long Island, New York, Dr. Donnelly resides in Northern Virginia with his wife, two kids, and their dog.


  • Certified Chiropractic Extremity Practitioner (CCEP)

  • Graston Certified provider

  • Functional and Kinetic Treatment with Rehabilitation, Provocation and Motion (FAKTR-PM)

  • Diversified Chiropractic Technique

  • Cox Flexion-Distraction

  • Mckenzie Principles.

  • Certified Kinesio Taping Professional (CKTP)

  • Soft-Tissue Techniques: 

    • Myofascial Release with an Active Component

    • Post Isometric relaxation (PIR)

    • Contract Relax Agonist Contract (CRAC)

    • Ballistic Stretching - forms of Proprioceptive Neuromuscular Skeletal Facilitation (PNF)

Massage Therapist
Massage Therapy
Larissa Irons

Massage Therapist

Larissa is passionate about dynamic massage therapy striving to spread the benefits of bodywork and integrative healthcare to the public. Her strategy to massage focuses on compassion and impact. Compassion allows her to listen to her clients with great intent and care. Creating impact allows her to improve clients' quality of life through soft tissue release, an increase in range of motion, and pain reduction.

Larissa has the opportunity to work with NFL athletes, marathon runners, cancer patients, clients with autoimmune disorders, and weekend warriors. She is the recent recipient of the Regional Massage Therapist of the Year (Northern Virginia) 2019. She has completed many continuing education courses in medical massage, sports massage, athletic taping, prenatal massage, and instrument-assisted soft tissue massage.

Larissa hopes to change the way the world views and access alternative therapies such as massage therapy, acupuncture, herbal remedies, and nutrition.

Kinsey Johnston

Massage Therapist

Kinsey is passionate about massage therapy and helping others heal and live a life they love. She never fails to see the results that patience and commitment to massage therapy and healing brings. "I love the connections that massage fosters and understand the importance of communication and collaboration in providing the best treatment."


Growing up on a ranch in Colorado was her first introduction to massage therapy after being bucked off a horse. After sustaining her fourth concussion in college, chiropractic care and massage therapy were major factors in Kinsey's recovery.

Kinsey graduated from the Northern Virginia School of Therapeutic Massage in 2016. Knowing what it feels like to suffer from debilitating injuries, stress, and persistent pain, Kinsey is committed to finding the best techniques and massage treatments for each person, helping them banish pain and get back on their feet.

Kinsey's specialties include:

  • Sports Massage

  • Deep Tissue

  • Stretching

  • Prenatal/Post-natal

  • Lymphatic Drainage

  • Myofascial Release

  • Shoulder and Neck Pain

  • Post-concussion

Running Shoes
Caroline Merena


Caroline Merena has extensive experience coaching new runners to any goal, from competition to just being able to run for fun and fitness. She enjoys helping clients fit their running goals into their lifestyle. Caroline is a certified Road Runners Club of America (RRCA) coach and American College of Sports Medicine (ACSM) personal trainer. A 15-time Boston Marathon qualifier, she enjoys helping others qualify for and compete in

this prestigious race.

As a middle-distance runner and New York State 1,000-meter champion in college, Caroline gradually moved to the longer distances and has run 32 marathons, including in Rome, Berlin, Paris, and London. She has won her age group in the National, Disney Wine and Dine, and Charlottesville Half Marathons, but she also likes to mix it up with the occasional Krispy Kreme Challenge, Bourbon Chase and/or Ragnar Relay.

Caroline brings extensive knowledge of everything from shoes and equipment to training programs to how to look like a pro at your first 5K. Her approach to running is simple: make it fun, and you'll want to do it.

Head Massage
Dawn Fox

Massage Therapist

Dawn Fox, LMT graduated from National Massage Therapy Institute in 2013, receiving her Associates in Massage Therapy. She collaborates with patients to create a safe, enjoyable treatment and ongoing care plan that’s catered to their specific needs and lifestyle. Dawn enjoys learning and continuing to develop her skills to better help her clients. Dawn has a love for human physiology, movement, and caring for others.


Dawn's specialties are:

  • Relaxation

  • Deep tissue

  • Sports massage

  • Hot stone

  • Lymphatic drainage

  • Trigger point

  • Cupping

  • Scraping

  • Light stretching

  • Prenatal massage

  • Post-surgical/injury

Wendy Christensen


Wendy’s fascination with the human body began at an early age as a dancer. She still marvels at the sophisticated design of this mortal vehicle and seeks to teach her students practical tools to enhance their life journey both physically and spiritually.

Wendy’s classes reflect her belief that properly aligning the body allows us to align with the universe and this alignment benefits both body and soul. She offers students a slow flow of poses with an opportunity to slow down, stretch-out and re-connect with their innate goodness. Wendy completed her yoga teacher training with Suzie Hurley at Willow Street Yoga Center in Takoma Park, MD in 2009.

Wendy holds a B.S. in Physical Education and is a certified Exercise Physiologist through the American College of Sports Medicine. She has been teaching, training and coaching yoga, fitness and wellness since 2002.


  • ACSM Exercise Physiologist

  • NASM Corrective Exercise Specialist

  • ISCA KettleBell Trainer

  • Willow Street Yoga

  • Les Mills Bodypump

  • Maddog Spinning


Personal Trainer
Pamela Lessard, AFPA CPT


Pamela Lessard, a former communications professional, turned her love of exercise into a fitness-industry career in 2010. As a personal trainer and group exercise instructor, Pamela brings passion and energy to her sessions and classes each day, sharing her philosophy of staying fit in body and mind. An avid adventure buff, Pamela has completed two Tough Mudder obstacle runs, one Spartan Race, two Civilian Military Combines, two Warrior Dashes, and several other runs.


  • Personal Training Certification from American Fitness Professionals & Associates

  • Group Training Certification from Washington Sports Clubs

  • Level 1 Kettlebell Certification from International Sports Conditioning Association

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