CoChat
Sign Up
Cited by 36Thermoregulation and physiological responsesSports Performance and TrainingCardiovascular and exercise physiology

Repeated familiarisation with hypohydration attenuates the performance decrement caused by hypohydration during treadmill running

Fleming, Joseph, James, Lewis J.·2014·Applied Physiology, Nutrition, and Metabolism
DOI 10.1139/apnm-2013-0044
Open this paper in CoChat — free account

Abstract

This study examined the effect of repeated familiarisation to hypohydration on hypohydrated exercise performance. After familiarisation with the exercise protocol, 10 recreationally active males completed a euhydrated (EU-pre) and hypohydrated (HYPO-pre) trial, which involved a 45-min steady state run at 75% peak oxygen uptake (45SS) followed by a 5-km time trial (TT). Euhydration and hypohydration were induced by manipulating fluid intake in the 24-h pre-exercise and during the 45SS. Subjects then completed 4 habituation sessions that involved replication of the HYPO-pre trial, except they completed 60 min of running at 75% peak oxygen uptake and no TT. Subjects then replicated the euhydrated (EU-post) and hypohydrated (HYPO-post) trials. Body mass loss pre-TT was 0.2 (0.2)% (EU-pre), 2.4 (0.3)% (HYPO-pre), 0.1 (0.1)% (EU-post), and 2.4 (0.3)% (HYPO-post). TT performance was 5.8 (2.4)% slower during the HYPO-pre trial (1459 (250) s) than during the EU-pre trial (1381 (237) s) (p < 0.01), but only 1.2 (1.6)% slower during the HYPO-post trial (1381 (200) s) than during the EU-post trial (1366 (211) s) (p = 0.064). TT performance was not different between EU-pre and EU-post trials, but was 5.1 (2.3)% faster during the HYPO-post trial than the HYPO-pre trial (p < 0.01). Heart rate was greater during HYPO trials than EU trials (p < 0.001), whilst rating of perceived exertion (RPE) response was similar to TT time and was lower in the HYPO-post trial than the HYPO-pre trial (p < 0.01). In conclusion, hypohydration impaired 5-km running performance in subjects unfamiliar with the hypohydration protocol, but 4 familiarisation sessions designed to habituate subjects with the hypohydration protocol attenuated the performance decrement, seemingly via an attenuation of RPE during hypohydrated exercise.

Integrity signals

Registry

Crossref · 10.1139/apnm-2013-0044

Cites

44 of 44 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

  • The rating of perceived exertion was normalized after hypohydrated training.

    “Additionally, the rating of perceived exertion was normalized after hypohydrated training.”

    From Periodized Nutrition for Athletes (2017) · cites this paper as [79]

  • On average, runners were 5.8% slower with euhydrated training and only 1.2% slower when they trained in a dehydrated state.

    “On average, the runners were 5.8% slower with euhydrated training and only 1.2% slower when they trained in a dehydrated state.”

    From Periodized Nutrition for Athletes (2017) · cites this paper as [79]

  • Dehydration reduced performance by 2.4%.

    “It was observed that dehydration reduced performance by 2.4%.”

    From Periodized Nutrition for Athletes (2017) · cites this paper as [79]

  • Familiarization with hypohydration may improve performance in situations where hypohydration may occur.

    “Thus, it appears from this study that familiarization with hypohydration may have the potential to improve performance in situations where hypohydration may occur.”

    From Periodized Nutrition for Athletes (2017) · cites this paper as [79]

  • Training without fluids resulted in smaller reductions in performance.

    “The main finding, however, was that training without fluids resulted in smaller reductions in performance.”

    From Periodized Nutrition for Athletes (2017) · cites this paper as [79]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Related

Authors
Fleming, J., & James, L. J.
Affiliations
  • Nottingham Trent University (GB)
  • Loughborough University (GB)
ORCID
James, Lewis J.
Venue
Applied Physiology, Nutrition, and Metabolism
Publisher
Canadian Science Publishing
Published
2014-02
Volume
39
Issue
2
Pages
124-129
ISSN
  • 1715-5312 (ISSN-L)
  • 1715-5320
DOI
10.1139/apnm-2013-0044
OpenAlex
W1992125714
Cited by
36
References
43
Citations by year
2026: 1 · 2025: 3 · 2024: 2 · 2023: 3 · 2022: 1 · 2021: 4 · 2020: 1 · 2019: 3 · 2018: 2 · 2017: 6 · 2016: 5 · 2015: 2 · 2014: 3
FWCI
2.32
Type
journal article
Language
en
Open access
closed
Licence
www.nrcresearchpress.com/page/about/CorporateTextAndDataMining (tdm)
Locations
  • Applied Physiology Nutrition and Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
Keywords
exercise performance, familiarization, habituation, treadmill running, 5 km time trial, rating of perceived exertion, heart rate, weight loss, fluid restriction, dehydration, recreational runners, peak oxygen uptake, time trial performance, body mass
MeSH terms
Dehydration, Exercise Test, Humans, Male, Running, Athletic Performance, Young Adult

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