PMID- 29484346 OWN - NLM STAT- MEDLINE DCOM- 20190918 LR - 20240317 IS - 1760-4788 (Electronic) IS - 1279-7707 (Linking) VI - 22 IP - 3 DP - 2018 TI - Factors Associated with Pre-Event Hydration Status and Drinking Behavior of Middle-Aged Cyclists. PG - 335-340 LID - 10.1007/s12603-017-0927-y [doi] AB - OBJECTIVES: Water is an essential nutrient for thermoregulation, metabolism, cognition, and overall physiological homeostatic function. However, aging adults display a blunted thirst mechanism and subsequently have an increased risk for dehydration or hyponatremia. Fluid consumption behaviors are modifiable and the importance of practicing adequate drinking behaviors for aging adults is amplified during exercise. Identification of aging adult's hydration beliefs and how they attain hydration advice could provide valuable information into ways to promote better drinking habits to reduce fluid imbalances. Thus, this investigation evaluated the knowledge, beliefs and behaviors of middle-aged cyclists (MA) that were associated with hydration status and drinking behavior, before and during a 164-km mass-participation event (ambient temperature, 33.3+/-2.8 masculineC(mean+/-SD)). DESIGN: This cross-sectional field study retrospectively grouped participants by their second urine specific gravity (Usg) measurement of the event morning prior to a mass participation cycling event. Usg was assessed via handheld refractometer. SETTING: The Hotter N' Hell Hundred 164-km cycling event in Wichita Falls, Texas during the month of August. PARTICIPANTS: 36 male recreational cyclists (age, 53+/-9 y(mean+/-SD)). MEASUREMENTS: Participants were grouped according their urine specific gravity as either slightly hyperhydrated (SH; n=12, Usg/=1.021). Exercise histories and questionnaires were recorded 24-48 h prior to the cycling event. RESULTS: Regardless of pre-event hydration status, all groups experienced a similar body mass loss during the 164-km event and finished with statistically similar exercise times; also, drinking behavior within all groups was influenced by multiple factors. The primary factors associated with MA cyclist drinking behavior were trial and error/personal history and thirst; further, the majority of cyclists (>/=65%) in SH, EUH, and SD believed that dehydration affects performance negatively. The least important factors included rehydration recommendations from scientific and sports medicine organizations, plus information from sports drink manufacturers. CONCLUSION: Considering the complexity of the present findings and the physiological changes that accompany aging such as delayed thirst perception, we recommend that MA cyclists formulate an individualized drinking plan that is based on observations during exercise. FAU - Yates, B A AU - Yates BA AD - Brandon A. Yates, M.S., New England GRECC, Boston VA Healthcare System, 150 S., Huntington Ave., Boston, MA 02130, USA E-mail: Brandon.yates2@va.gov; Phone: 857-364-2785; Fax: 857-364-2784. FAU - Ellis, L A AU - Ellis LA FAU - Butts, C L AU - Butts CL FAU - McDermott, B P AU - McDermott BP FAU - Williamson, K H AU - Williamson KH FAU - Armstrong, L E AU - Armstrong LE LA - eng PT - Journal Article PL - France TA - J Nutr Health Aging JT - The journal of nutrition, health & aging JID - 100893366 RN - 059QF0KO0R (Water) SB - IM MH - Bicycling/*statistics & numerical data MH - Body Mass Index MH - Cross-Sectional Studies MH - Dehydration MH - Drinking MH - *Drinking Behavior MH - Exercise/*physiology MH - Hot Temperature MH - Humans MH - Hyponatremia/prevention & control MH - Male MH - Middle Aged MH - Nutritional Status MH - Retrospective Studies MH - Surveys and Questionnaires MH - Thirst/*physiology MH - Water OTO - NOTNLM OT - Thirst OT - aging OT - exercise OT - hydration OT - hyponatremia COIS- Yates, BA: Mr. Yates has nothing to disclose; Ellis LA: Ms. Ellis has nothing to disclose; Butt CL: Mr. Butts reports personal fees from Gatorade Sports Science Institute, outside the submitted work; Williamson KH: Dr. Williamson has nothing to disclose; McDermott BP: Dr. McDermott has nothing to disclose; and Armstrong LE: Dr. Armstrong has nothing to disclose. This research was conducted at the Hotter 'N Hell Hundred cycling event (HHH) in Wichita Falls, TX, USA during August 2015. EDAT- 2018/02/28 06:00 MHDA- 2019/09/19 06:00 CRDT- 2018/02/28 06:00 PHST- 2018/02/28 06:00 [entrez] PHST- 2018/02/28 06:00 [pubmed] PHST- 2019/09/19 06:00 [medline] AID - S1279-7707(23)02150-4 [pii] AID - 10.1007/s12603-017-0927-y [doi] PST - ppublish SO - J Nutr Health Aging. 2018;22(3):335-340. doi: 10.1007/s12603-017-0927-y.