Heart rate response does not differ between pitch types in college baseball pitchers

Journal Article (Journal Article)

Fatigue has been observed to effect pitching velocity, performance and pain. Pitch counts are a sub-optimal substitute to quantify pitching physiologic stress. Heart rate (HR) response is conducive to quantify physiologic stress. Currently, there is a paucity of literature investigating HR response between different pitch types. It is hypothesised that different pitch types will have divergent HR responses during pitching. A gyroscope, triaxial accelerometer device (Optimeye S5, Catapult Sports, Melbourne, Australia) and HR monitor were worn by 25 collegiate pitchers during a pitching session. Individual pitch-type velocities were recorded for fastballs, curveballs, sliders and changeups. All HR was normalized to age predicted maximal HR (%HRmax), for each pitch type. Statistical analysis included paired t-tests (p <.01) and effect size indexes (ESI). %HRmax was lower for fastball compared to changeup (p < 0.01); however, when ESI’s were calculated, no difference was observed (ESI < 0.01). There was no difference in %HRmax between fastball to curveball (ESI < 0.01, p = 0.75) and fastball to slider (ESI < 0.02, p = 0.10). No meaningful difference in %HRmax was observed between fastball, curveballs, slider and changeups. Future studies are required to understand physiological stress responses beyond heart rate for different pitch types.

Full Text

Duke Authors

Cited Authors

  • Bullock, GS; Schmitt, AC; Chasse, P; Little, BA; Diehl, LH; Butler, RJ

Published Date

  • September 3, 2017

Published In

Volume / Issue

  • 17 / 5

Start / End Page

  • 774 - 782

Electronic International Standard Serial Number (EISSN)

  • 1474-8185

Digital Object Identifier (DOI)

  • 10.1080/24748668.2017.1399324

Citation Source

  • Scopus