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Cited by 5

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Thermoregulation and Stress Hormone Recovery After Exercise Dehydration: Comparison of Rehydration Methods

McDermott, Brendon P., Casa, Douglas J., Lee, Elaine, Yamamoto, Linda, Beasley, Kathleen, Emmanuel, Holly, Anderson, Jeffrey, Pescatello, Linda, Armstrong, Lawrence E., Maresh, Carl·2013·Journal of Athletic Training
DOI 10.4085/1062-6050-48.6.01
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Abstract

Context: Athletic trainers recommend and use a multitude of rehydration (REHY) methods with their patients. The REHY modality that most effectively facilitates recovery is unknown. Objective: To compare 5 common REHY methods for thermoregulatory and stress hormone recovery after exercise dehydration (EXDE) in trained participants. Design: Randomized, cross-over, controlled study. Patients or Other Participants: Twelve physically active, non–heat-acclimatized men (age = 23 ± 4 years, height = 180 ± 6 cm, mass = 81.3 ± 3.7 kg, V̇o2max = 56.9 ± 4.4 mL·min−1·kg−1, body fat = 7.9% ± 3%) participated. Intervention(s): Participants completed 20-hour fluid restriction and 2-hour EXDE; they then received no fluid (NF) or REHY (half-normal saline) via ad libitum (AL), oral (OR), intravenous (IV), or combination IV and OR (IV + OR) routes for 30 minutes; and then were observed for another 30 minutes. Main Outcome Measure(s): Body mass, rectal temperature, 4-site mean weighted skin temperature, plasma stress hormone concentrations, and environmental symptoms questionnaire (ESQ) score. Results: Participants were hypohydrated (body mass −4.23% ± 0.22%) post-EXDE. Rectal temperature for the NF group was significantly greater than for the IV group (P = .023) at 30 minutes after beginning REHY (REHY30) and greater than OR, IV, and IV + OR (P ≤ .009) but not AL (P = .068) at REHY60. Mean weighted skin temperature during AL was less than during IV + OR at REHY5 (P = .019). The AL participants demonstrated increased plasma cortisol concentrations compared with IV + OR, independent of time (P = .015). No differences existed between catecholamine concentrations across treatments (P > .05). The ESQ score was increased at REHY60 for NF, AL, OR, and IV (P < .05) but not for IV + OR (P = .217). The NF ESQ score was greater than that of IV + OR at REHY60 (P = .012). Conclusions: Combination IV + OR REHY reduced body temperature to a greater degree than OR and AL REHY when compared with NF. Future studies addressing clinical implications are needed.

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Research works printed but not linked: 32

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Metadata

Authors
McDermott, B. P., Casa, D. J., Lee, E., Yamamoto, L., Beasley, K., Emmanuel, H., Anderson, J., Pescatello, L., Armstrong, L. E., & Maresh, C.
Affiliations
  • Athletic Training Education Program, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville
  • Human Performance Laboratory, Department of Kinesiology, University of Connecticut, Storrs
Venue
Journal of Athletic Training
Publisher
National Athletic Trainers' Association
Published
2013-12-01
Volume
48
Issue
6
Pages
725-733
ISSN
1062-6050
DOI
10.4085/1062-6050-48.6.01
Cited by
5
References
4
Language
en

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CoChat. (2026). Citation check: Thermoregulation and Stress Hormone Recovery After Exercise Dehydration: Comparison of Rehydration Methods. https://app.cochat.ai/papers/10.4085/1062-6050-48.6.01
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McDermott, B. P., Casa, D. J., Lee, E., Yamamoto, L., Beasley, K., Emmanuel, H., Anderson, J., Pescatello, L., Armstrong, L. E., & Maresh, C. (2013). Thermoregulation and Stress Hormone Recovery After Exercise Dehydration: Comparison of Rehydration Methods. Journal of Athletic Training. https://doi.org/10.4085/1062-6050-48.6.01

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