Student or educator? Sign up with your school email and get 6 months of Pro free.
CoChat
Sign Up
Cited by 59

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Mild Dehydration and Cycling Performance During 5-Kilometer Hill Climbing

Bardis, Costas N., Kavouras, Stavros A., Arnaoutis, Giannis, Panagiotakos, Demosthenes B., Sidossis, Labros S.·2013·Journal of Athletic Training
DOI 10.4085/1062-6050-48.5.01
Open this paper in CoChat — free account

Abstract

Context: Hydration has been shown to be an important factor in performance; however, the effects of mild dehydration during intense cycling are not clear. Objective: To determine the influence of mild dehydration on cycling performance during an outdoor climbing trial in the heat (ambient temperature = 29.0°C ± 2.2°C). Design: Crossover study. Setting: Outdoor. Patients or Other Participants: Ten well-trained, male endurance cyclists (age = 28 ± 5 years, height = 182 ± 0.4 cm, mass = 73 ± 4 kg, maximal oxygen uptake = 56 ± 9 mL·min−1·kg−1, body fat = 23% ± 2%, maximal power = 354 ± 48 W). Intervention(s): Participants completed 1 hour of steady-state cycling with or without drinking to achieve the desired pre-exercise hydration level before 5-km hill-climbing cycling. Participants started the 5-km ride either euhydrated (EUH) or dehydrated by −1% of body mass (DEH). Main Outcome Measure(s): Performance time, core temperature, sweat rate, sweat sensitivity, and rating of perceived exertion (RPE). Results: Participants completed the 5-km ride 5.8% faster in the EUH (16.6 ± 2.3 minutes) than DEH (17.6 ± 2.9 minutes) trial (t1 = 10.221, P = .001). Postexercise body mass was −1.4% ± 0.3% for the EUH trial and −2.2% ± 0.2% for the DEH trial (t1 = 191.384, P < .001). Core temperature after the climb was greater during the DEH (39.2°C ± 0.3°C) than EUH (38.8°C ± 0.2°C) trial (t1 = 8.04, P = .005). Sweat rate was lower during the DEH (0.44 ± 0.16 mg·m−2·s−1) than EUH (0.51 ± 0.16 mg·m−2·s−1) trial (t8 = 2.703, P = .03). Sweat sensitivity was lower during the DEH (72.6 ± 32 g·°C−1·min−1) than EUH (102.6 ± 54.2 g·°C−1·min−1) trial (t8 = 3.072, P = .02). Lastly, RPE after the exercise performance test was higher for the DEH (19.0 ± 1.0) than EUH (17.0 ± 1.0) participants (t9 = −3.36, P = .008). Conclusions: We found mild dehydration decreased cycling performance during a 5-km outdoor hill course, probably due to greater heat strain and greater perceived intensity.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.4085/1062-6050-48.5.01

Cites

2 of 2 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

2 more claims about this paper

Create a free account to see every claim other papers make about this one.

See all claims — free account

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Research works printed but not linked: 28

  1. Gonzalez-Alonso, 1997, Dehydration markedly impairs cardiovascular function in hyperthermic endurance athletes during exercise, J Appl Physiol, 82, 1229, 10.1152/jappl.1997.82.4.1229 · DOI · Paper page
  2. Gonzalez-Alonso, 1995, Dehydration reduces cardiac output and increases systemic and cutaneous vascular resistance during exercise, J Appl Physiol, 79, 1487, 10.1152/jappl.1995.79.5.1487 · DOI · Paper page
  3. Nybo, 2001, Effects of marked hyperthermia with and without dehydration on VO(2) kinetics during intense exercise, J Appl Physiol, 90, 1057, 10.1152/jappl.2001.90.3.1057 · DOI · Paper page
  4. Nielsen, 1981, Physical work capacity after dehydration and hyperthermia: a comparison of the effect of exercise versus passive heating and sauna and diuretic dehydration, Scand J Sports Sci, 3, 2
  5. Cheuvront, 2005, Hypohydration impairs endurance exercise performance in temperate but not cold air, J Appl Physiol, 99, 1972, 10.1152/japplphysiol.00329.2005 · DOI · Paper page
  6. Ebert, 2007, Influence of hydration status on thermoregulation and cycling hill climbing, Med Sci Sports Exerc, 39, 323, 10.1249/01.mss.0000247000.86847.de · DOI · Paper page
  7. Below, 1995, Fluid and carbohydrate ingestion independently improve performance during 1 h of intense exercise, Med Sci Sports Exerc, 27, 200, 10.1249/00005768-199502000-00009 · DOI · Paper page
  8. McConell, 1999, Fluid ingestion does not influence intense 1-h exercise performance in a mild environment, Med Sci Sports Exerc, 31, 386, 10.1097/00005768-199903000-00006 · DOI
  9. Robinson, 1995, Water ingestion does not improve 1-h cycling performance in moderate ambient temperatures, Eur J Appl Physiol Occup Physiol, 71, 153, 10.1007/BF00854973 · DOI
  10. Osterberg, 2009, Pregame urine specific gravity and fluid intake by National Basketball Association players during competition, J Athl Train, 44, 53, 10.4085/1062-6050-44.1.53 · DOI · Paper page
  11. Stover, 2006, Urine specific gravity in exercisers prior to physical training, Appl Physiol Nutr Metab, 31, 320, 10.1139/h06-004 · DOI
  12. Anastasiou, 2009, Sodium replacement and plasma sodium drop during exercise in the heat when fluid intake matches fluid loss, J Athl Train, 44, 117, 10.4085/1062-6050-44.2.117 · DOI · Paper page
  13. Borg, 1982, Psychophysical bases of perceived exertion, Med Sci Sports Exerc, 14, 377, 10.1249/00005768-198205000-00012 · DOI · Paper page
  14. Atkinson, 2005, Diurnal variation in cycling performance: influence of warm-up, J Sports Sci, 23, 321, 10.1080/02640410410001729919 · DOI
  15. Armstrong, 2010, Human hydration indices: acute and longitudinal reference values, Int J Sport Nutr Exerc Metab, 20, 145, 10.1123/ijsnem.20.2.145 · DOI · Paper page
  16. Takamata, 1995, Osmoregulatory modulation of thermal sweating in humans: reflex effects of drinking, Am J Physiol, 268, R414
  17. Du Bois, 1989, A formula to estimate the approximate surface area if height and weight be known, 1916, Nutrition, 5, 303
  18. Armstrong, 1997, Thermal and circulatory responses during exercise: effects of hypohydration, dehydration, and water intake, J Appl Physiol, 82, 2028, 10.1152/jappl.1997.82.6.2028 · DOI
  19. Hagan, 1978, Plasma volume changes with movement to supine and standing positions, J Appl Physiol, 45, 414, 10.1152/jappl.1978.45.3.414 · DOI
  20. Seifarth, 2004, Measurement of serum and plasma osmolality in healthy young humans: influence of time and storage conditions, Clin Chem Lab Med, 42, 927, 10.1515/CCLM.2004.150 · DOI
  21. Armstrong, 1998, Urinary indices during dehydration, exercise, and rehydration, Int J Sport Nutr, 8, 345, 10.1123/ijsn.8.4.345 · DOI · Paper page
  22. Kavouras, 2002, Assessing hydration status, Curr Opin Clin Nutr Metab Care, 5, 519, 10.1097/00075197-200209000-00010 · DOI · Paper page
  23. Dill, 1974, Calculation of percentage changes in volumes of blood, plasma, and red cells in dehydration, J Appl Physiol, 37, 247, 10.1152/jappl.1974.37.2.247 · DOI · Paper page
  24. Maughan, 1985, Rectal temperature after marathon running, Br J Sports Med, 19, 192, 10.1136/bjsm.19.4.192 · DOI
  25. Saltin, 1966, Esophageal, rectal, and muscle temperature during exercise, J Appl Physiol, 21, 1757, 10.1152/jappl.1966.21.6.1757 · DOI · Paper page
  26. Walsh, 1994, Impaired high-intensity cycling performance time at low levels of dehydration, Int J Sports Med, 15, 392, 10.1055/s-2007-1021076 · DOI · Paper page
  27. Casa, 2010, Influence of hydration on physiological function and performance during trail running in the heat, J Athl Train, 45, 147, 10.4085/1062-6050-45.2.147 · DOI · Paper page
  28. Wingo, 2012, Cardiovascular drift during heat stress: implications for exercise prescription, Exerc Sport Sci Rev, 40, 88, 10.1097/JES.0b013e31824c43af · DOI

Cited by

See all 59

Metadata

Authors
Bardis, C. N., Kavouras, S. A., Arnaoutis, G., Panagiotakos, D. B., & Sidossis, L. S.
Affiliations
  • Department of Nutrition and Dietetics, Harokopio University, Athens, Greece
  • Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville
  • Department of Internal Medicine–Geriatrics, University of Texas Medical Branch at Galveston
Venue
Journal of Athletic Training
Publisher
National Athletic Trainers' Association
Published
2013-12-01
Volume
48
Issue
6
Pages
741-747
ISSN
1062-6050
DOI
10.4085/1062-6050-48.5.01
Cited by
59
References
2
Language
en

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.