Cited by 91Cardiovascular and exercise physiologyGastrointestinal motility and disordersThermoregulation and physiological responses

Gastric emptying during walking and running: effects of varied exercise intensity

Neufer, P. D., Young, A. J., Sawka, M. N.·1989·European Journal of Applied Physiology and Occupational Physiology

Abstract

Gastric emptying is increased during running (50%-70% maximal aerobic uptake, VO2max) as compared to rest. Whether this increase varies as a function of mode (i.e. walking vs running) and intensity of treadmill exercise is unknown. To examine the gastric emptying characteristics of water during treadmill exercise performed over a wide range of intensities relative to resting conditions, 10 men ingested 400 ml of water prior to each of six 15 min exercise bouts or 15 min of seated rest. Three bouts of walking exercise (1.57 m.s-1) were performed at increasing grades eliciting approximately 28%, 41% or 56% of VO2max. On a separate day, three bouts of running (2.68 ms-1) exercise were performed at grades eliciting approximately 57%, 65% or 75% of VO2max. Gastric emptying was increased during treadmill exercise at all intensities excluding 75% VO2max as compared to rest. Gastric emptying was similar for all intensities during walking and at 57% and 65% VO2max during running. However, running at 74% VO2max decreased the volume of original drink emptied as compared to all lower exercise intensities. Stomach secretions were markedly less during running as compared to walking and rest. These data demonstrate that gastric emptying is similarly increased during both moderate intensity (approximately 28%-65% VO2max) walking or running exercise as compared to resting conditions. However, gastric emptying decreases during high intensity exercise. Increases in gastric emptying during moderate intensity treadmill exercise may be related to increases in intragastric pressure brought about by contractile activity of the abdominal muscles.

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Crossref · 10.1007/bf00643522

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  • At higher exercise intensities, such as above 70% VO2max, gastric emptying appears to be delayed.

    “at higher intensities (e.g., above 70% VO2max), gastric emptying appears to be delayed [121–124].”

    From The athletic gut microbiota (2020) · cites this paper as [123]

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Authors
Neufer, P. D., Young, A. J., & Sawka, M. N.
Affiliations
U.S. Army Research Institute of Environmental Medicine (US)
Venue
European Journal of Applied Physiology and Occupational Physiology
Published
1989
Volume
58
Issue
4
Pages
440-445
ISSN
  • 0020-9376 (ISSN-L)
  • 0301-5548
  • 1439-6327
OpenAlex
W2075497073
Cited by
91
References
17
Citations by year
2025: 2 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 2 · 2020: 3 · 2019: 3 · 2018: 2 · 2017: 4 · 2015: 6 · 2014: 3 · 2013: 6
FWCI
5.34
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
Keywords
gastric emptying, exercise intensity, walking, running, treadmill exercise, VO2max, intragastric pressure, abdominal muscle contraction
MeSH terms
Adult, Physical Exertion, Gastric Emptying, Humans, Male, Rest, Running

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