Correlation Between Pre-Exercise Hydration Status and Heart Rate of Female Division II Collegiate Distance Runners During a Training Session

Authors

Daniela E. Ferreras, California State University, San BernardinoFollow
Alma I. Martinez, Loma Linda UniversityFollow
Cody M. Billings, California State University, Dominguez HillsFollow
Haydin C. Pazdur, California State University, San BernardinoFollow
Angela Haven A. Barandino, California State University, San Bernardino
Robert Hernandez, California Baptist UniversityFollow
Tamara Rodriguez, California State University, San BernardinoFollow
Christopher R. Hill, California State University, San BernardinoFollow
April Karlinsky, California State University, San BernardinoFollow
Jason Ng, California State University, San BernardinoFollow

Abstract

Female athletes participating in Division II collegiate sports are an understudied population. While athletes’ pre-exercise hydration status is known to have an important impact on a variety of performance metrics, it is unknown whether their pre-exercise hydration is associated with heart rate responses during a subsequent exercise bout. PURPOSE: The purpose of this study was to examine the correlation between pre-exercise hydration status and exercise heart rate (HR) of female distance runners on a Division II collegiate track and field team. METHODS: 8 female distance runners (Mean ± SD; age: 21 ± 1.8 y, height: 161.2 ± 10.8 cm, mass: 54.7 ± 7.9 kg) provided a urine sample for urine specific gravity (USG) analysis prior to two team training sessions. Exercise HR was recorded with an HR monitor during two separate training sessions, one indoors and one outdoors. RESULTS: Pre-exercise USG was not different between sessions (indoors: 1.021 ± 0.006; outdoors: 1.019 ± 0.008; t(7) = 0.64, p = 0.542). Mean HR during exercise was also not different between sessions (indoors: 169 ± 17 beats/min; outdoors: 172 ± 12 beats/min; t(7) = -1.00, p = 0.349). There was no significant correlation between pre-exercise USG and session HR for either session (indoors: r = -0.121, p = 0.776; outdoors: r = 0.447, p = 0.267). CONCLUSIONS: In this study, an individual’s hydration status at exercise onset was not related to mean HR during the exercise bout. It is possible that the homogeneity of this sample of trained runners with similar pre-exercise hydration states near borderline hypohydration might have given a limited view of the relationship between the two variables. Exercise professionals should continue to encourage athletes in this level of competition to begin exercise in a well hydrated state as research on this population continues to develop.

Recommended Citation

Ferreras, Daniela E.; Martinez, Alma I.; Billings, Cody M.; Pazdur, Haydin C.; Barandino, Angela Haven A.; Hernandez, Robert; Rodriguez, Tamara; Hill, Christopher R.; Karlinsky, April; and Ng, Jason (2024) "Correlation Between Pre-Exercise Hydration Status and Heart Rate of Female Division II Collegiate Distance Runners During a Training Session," International Journal of Exercise Science: Conference Proceedings: Vol. 14: Iss. 4, Article 13.
Available at: https://digitalcommons.wku.edu/ijesab/vol14/iss4/13