Joshua R. Lucas, Nicholas J. Spokely, Kurt W. McDowell, Jason D. Wagganer, Jeremy T. Barnes, & Monica L. Kearney

Southeast Missouri State University, Cape Girardeau, MO

Adequate hydration is important for optimal health and physical performance. Longer exercise sessions require greater volumes and frequencies of fluid replacement. Participants may not understand the importance of fluid replacement compared to time spent exercising which could lead to dehydration due to inadequate fluid replacement. PURPOSE: To assess the relationship between average time spent exercising (ExTime) and hydration status in Recreationally Active College Students (RACS) while also assessing the relationship between exercise modes and hydration status. METHODS: As part of an ongoing study, RACS were instructed to arrive hydrated to the laboratory and provide investigators with a mid-stream urine sample. Hydration Status [Urinary Specific Gravity (USG)] was determined using a digital refractometer. ExTime was translated into average minutes from a combination of Resistance Training (RT) and Aerobic Training (AE) time ranges. A total of 46 participants were included in the following analysis (20 male, 26 female, age = 21 ± 2 years). After screening data for normality, a Pearson’s Bivariant Two-Tailed Correlation was used to assess the relationship between hydration status and ExTime. A one-way ANOVA was used to analyze hydration status among the three exercise mode categories (RT, AE, RT+AE). RESULTS: No significant correlation was found between hydration status and ExTime [r=0.031, p=0.836]. There was also no significant difference between hydration status and exercise mode (p=0.426). CONCLUSION: No significant relationship existed among the observed variables. A limitation of this study is that hydration status may have been impacted by the instruction for the RACS to arrive at the laboratory hydrated. Future research should assess relationships between hydration knowledge, perceived importance of hydration, and average time spent exercising. Follow-up studies should also ensure RACS are tested in ad libitum hydration states without instruction on fluid intake.

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