Date of Award

Spring 5-14-2026

Document Type

Open Access Thesis

Degree Name

Master of Science (MS)

Department

Kinesiology

First Advisor

Jason Parks, Ph.D.

Second Advisor

Kevin Dames, Ph.D.

Third Advisor

Jared Rosenberg, Ph.D.

Abstract

Heart rate variability (HRV) is a standard non-invasive physiological marker used to asses the autonomic nervous system (ANS) function and cardiovascular adaptability. HRV reflects the natural variations in time between successive heartbeats (R-R intervals), which come as a result of the interaction between sympathetic and parasympathetic branches of the ANS (Shaffer & Ginsberg, 2017). Higher HRV compared to an individual's baseline is normally considered an indicator of greater parasympathetic (rest/digest) influence and more effective physiological recovery, whereas lower HRV relative to baseline is associated with sympathetic (fight/flight) dominance, fatigue, and increased physiological strain. Since the standardized HRV measurement criteria were established, using consistent recording duration, position/posture, and artifact-processing procedures, HRV has become an important tool in sports science monitoring for the post-exercise autonomic recovery and readiness following training and competition (Task Force, 1996).

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