We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Implications of an Ultra-Endurance Swim on Heart Rate, Blood Lactate Response, and Hydration: A Case Report.
- Authors
STAUFFER, KORY A.; KITTS, SUZANNE E.
- Abstract
Background: This case report assessed the impact of an open water swim on heart rate, lactate response, and hydration. Methods: Thirty year-old male weighing 80.5 kg swam 39.2 km. During the swim, the subject's heart rate was recorded using a Polar heart rate monitor. Lactate levels were recorded before subject entered the water and immediately following the swim. Minute stroke counts were performed each hour of the swim. Results: Subject maintained a heart rate range of 133-170 beats per minute for 99% of the swim duration [11 hours, 18 minutes, 29 seconds). Measured lactate was similar at start and upon completion of swim (2.4 vs. 2.5 mM/L)]. Pre-swim specific gravity of urine was found to be 1.008, with post-swim being measured at 1.015. Conclusion: Subject was able to maintain a fairly consistent heart rate throughout duration of swim. Also, lactate measures did not change much from pre-swim levels compared to immediately follow the completion of the swim. There was a slight increase in urine specific gravity after the swim which could signify mild dehydration. It is the interest of the authors that the information regarding intensities during an ultraendurance swim be used to influence training and performance.
- Publication
Biology of Exercise, 2019, Vol 15, Issue 1, p111
- ISSN
1791-325X
- Publication type
Academic Journal
- DOI
10.4127/jbe.2019.0150