Athletic Training - MarinHealth - Introducing the new Oak Pavilion

Virtual Street Fair

Take a virtual stroll through the MarinHealth Athletic Training Booth.

Marinhealth Athletic Training

Welcome to The Athletic Training Virtual Booth!

Athletic Training Program Overview

MarinHealth has assembled a team of highly qualified Certified Athletic Trainers that work with organizations and athletes to set a new standard for comprehensive training and sports medicine services. Certified Athletic Trainers are allied healthcare professionals who collaborate with physicians to provide preventative services, emergency care, clinical diagnosis, therapeutic intervention, and rehabilitation of injuries and medical conditions. To become an Athletic Trainer, one must complete an Athletic Training education curriculum (offered as a Masters). Accredited programs include formal instruction in areas such as injury/illness prevention, first aid and emergency care, assessment of injury/illness, human anatomy and physiology, therapeutic modalities, and nutrition.

Our Certified Athletic Trainers have worked with secondary school, collegiate, Olympic, and professional athletes. They have experience working with athletes in schools, sports camps, and club settings. Our Athletic Trainers are nationally certified by the Board of Certification (BOC) for Athletic Trainers. Knowledgeable on the newest and up-to-date sports medicine research and technology, our team utilizes evidence-based treatment and rehabilitation protocols that ensure a safe and healthy return to athletics.

Our Athletic Training Program is currently serving the local community through having athletic trainers at Tamalpais, Redwood, Sir Francis Drake (name to be changed), San Rafael, Terra Linda, and Tomales High Schools as well as Branson School and San Domenico High School. We also assist at other local schools such Marin Academy and College of Marin. When not at these schools you can find our Athletic Training staff working with the San Rafael Pacific’s baseball team, overseeing the health and safety of sports camps, educating the local community on wellness, and providing neurocognitive services to athletes.

In the future we are looking to expand our services to protest first aid support.

Key Features

Key Team Members

Kit Holsten

Christian, commonly known as Kit, is currently the Supervisor of Athletic Training of Marin Health’s Athletic Training program. She is starting her 6 year with Marin Health and has worked with Terra Linda High School, Tomales High School, and is currently working with The Branson School and San Domenico School as an Athletic Trainer.

Kit is a graduate of Whitworth University in Spokane, Washington, where she earned a Bachelor of Science in Athletic Training, and a Bachelor of Art in Kinesiology. Previously working specifically in sports rehabilitation, she is also trained as a Massage Therapist. Kit has worked with a range of athletes from pre-adolescents to professional athletes in many different sports, as well as professional musicians, firefighters and policemen. Kit is known for her passionate interest in her patients, and her desire to continue her education and to extend her understanding in order to provide the best possible care.


Americ Alvarado is currently the Lead Certified Athletic Trainer for Redwood High School through the Center for Integrative Health and Wellness at Marin Health. This is the second year in collaboration with Marin Health and Redwood but it will be his 11th year as the athletic trainer at Redwood High School.

Prior to being at Redwood, he was the graduate assistant athletic trainer for the Men’s gymnastic and Women’s crew team at Stanford. Americ received his Bachelors in Kinesiology with an emphasis in Athletic Training from San Diego State University then received his Masters in Kinesiology with an emphasis in Athletic Training from San Jose State University. He is currently married with a son and enjoys playing basketball and golf in his free time.


Ainsley is starting his second year with MarinHealth as the Certified Athletic Trainer at Tomales High School. He an East Bay native who did his undergraduate studies at Carroll University in Waukesha, WI. Shortly after graduating in the spring of 2019, he joined the MarinHealth team for the first step in his career path.

Before entering the profession, Ainsley played football through his high school and collegiate careers at the offensive line and fullback positions. He still enjoys breaking down CFB and NFL film, and is a die-hard 49er fan. In Ainsley’s free time outside of Athletic Training he enjoys photography, yoga, the outdoors, and listening to hip-hop.

David Tapia

David Tapia is starting his second year as the Head Athletic at Terra Linda High School through MarinHealth Medical Center. Prior to being a member of the Marin Health family, David was an Army Combat Medic where he has spent 3 ½ years in the active duty component and served a combat tour to Afghanistan. 

He is currently in the Army Reserves and recently completed his 10th year of military service. David completed his Bachelor of Science in Athletic Training degree with a minor in Health Science – Health Promotion and Disease Prevention from California State University, Fullerton. His clinical rotations included working in the NCAA Division 1 setting working with sports such as, Women’s Basketball, Women’s Volleyball, Men’s Soccer, Baseball, and Women’s Tennis. Other clinical rotations include the community college and the high school settings working with sports such as football, water polo, beach volleyball, volleyball and basketball. When David is not working you can catch him at the gym, fishing, or spending time with his girlfriend Vanessa and dogs; Mickey and Beretta, and his Black Orchid Betta.


Marcella Shorty, M.Ed, AT, CES is currently the athletic trainer at Tamalpais High School since 2019 where she works with all of the athletic teams. She previously worked as an athletic trainer at the University of South Carolina for four years, at Stanford University for thirteen years and at Temple University for five years.

She received her Bachelors Degree in Athletic Training at the University of New Mexico and a Masters of Education degree in Athletic Training at Temple University.  She enjoys spending time with her family, friends and traveling. 


Paula Shivock, MS, LAT, ATC is currently serving as an outreach athletic trainer through Marin Health at San Rafael High School. She has been a Board-Certified Athletic Trainer since 2016. Originally from Scranton, Pennsylvania, Paula earned a Bachelor of Science in Athletic Training from East Stroudsburg University of Pennsylvania in 2016.

She then earned a Master of Science in Athletic Training Advanced Clinical Practice from East Stroudsburg University of Pennsylvania in 2017, during which she served as a Graduate Assistant Athletic Trainer. Prior to her work at Marin Health Paula served as an Athletic Trainer in Pennsylvania to Olympic, Pre-Olympic, Collegiate, and Secondary School athletes. Her professional interests are in employee health, mental health, and community outreach programs such as Stop The Bleed. She is a passionate extreme sport enthusiast who likes to spend her weekends ripping down mountain bike trails, cruising through glades on her snowboard, or hanging from rock faces.

Trainer Conversations

Athletic Director Testimonial

Student Testimonial

Athletic Training Services

  • Injury prevention
  • On-site medical coverage for games and events
  • Clinical evaluation and diagnosis
  • Immediate care at the sidelines
  • Mental health acute and chronic care
  • Design and implementation of treatment and rehabilitation programs
  • Sports-specific technique clinics
  • Sports performance
  • Occupational health and safety
  • Tele-Health Consultations with School District Staff, Administration and Faculty
  • Certified in life saving techniques
  • Educational Opportunity for Student Internship
  • Sports Nutrition Guidance
  • Research
  • Work with Concussion Smart Marin
  • Community education
  • Protocol development for emergency situations
  • Current members of CATA – California Athletic Training Association and NATA- National Athletic Training Association

PDF Downloads

Heat Vs Cold
When and How to Use




Pain Scale


Shin Splints


Shoulder Impingement


Skin Conditions
in Athletic Populations




Wound Care

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