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Portia Resnick, PhD, ATC, BCTMB

Portia Resnick, PhD, ATC, BCTMB

Portia B. Resnick, PhD, ATC, BCTMB,has over 25 years of experience in the sports medicine field as a board-certified athletic trainer and massage therapist. With a PhD in education with a concentration in kinesiology from  the University of Hawaii at Manoa, her research delved into the use of heart rate variability as a clinical measure of recovery in NCAA Division 1 athletes. 

Having worked as an athletic trainer at the high school, collegiate, and professional levels and as a sole proprietor in therapeutic and sports massage, Portia currently holds the positions of Assistant Professor and Coordinator of Clinical Education at California State University, Long Beach. She has completed multiple massage-related research projects, including looking at heart rate variability as recovery from exercise, examining practices in sports massage, and massage ergonomics. She has given numerous presentations on manual therapy and is currently writing her first book on the anatomy and physiology of sports massage.

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  • Heart Rate Variability and Its Use in Evaluating Exercise Recovery
    Contains 6 Component(s), Includes Credits

    Athletic trainers can benefit from having a working knowledge of cardiac changes with exercise, including non-pathological changes to the left ventricle, as well as the normal response of the autonomic nervous system to exercise and recovery. Heart rate variability (HRV) is a non-invasive way to track autonomic balance, but as it lacks normal values, identifying factors contribute to change is beneficial. A working knowledge of recovery heart rate and HRV can help the athletic trainer navigate data provided by wearable technology to determine normal physiological changes with training versus changes which could put a patient at risk for under recovery.