Cited by 415Cardiovascular and exercise physiologyMetabolism, Diabetes, and CancerDiabetes, Cardiovascular Risks, and Lipoproteins

Synergistic interaction between exercise and insulin on peripheral glucose uptake.

Open access
DeFronzo, R A, Ferrannini, E, Sato, Y, Felig, P, Wahren, J·1981·Journal of Clinical Investigation

Abstract

The interaction of exercise and insulin on glucose metabolism was examined in 10 healthy volunteers. Four study protocols were used: study 1: plasma insulin was raised by approximately 100 microunits/ml while plasma glucose was maintained at basal levels for 2 h (insulin clamp). Study 2: subjects performed 30 min of bicycle exercise at 40% of VO2 max. Study 3: an insulin clamp was performed as per study 1. Following 60 min of sustained hyperinsulinemia, however, subjects exercised for 30 min as per study 2. Study 4: subjects were studied as per study 3 except that catheters were inserted into the femoral artery and vein to quantitate leg glucose uptake. During the 60-90 min period of hyperinsulinemia (study 1), glucose uptake averaged 8.73 +/- 0.10 mg/kg per min. With exercise alone (study 2), the increment in peripheral glucose uptake was 1.43 +/- 0.30 mg/kg per min. When hyperinsulinemia and exercise were combined (study 3), glucose uptake averaged 15.06 +/- 0.98 mg/kg per min (P less than 0.01) and this was significantly (P less than 0.001) greater than the sum of glucose uptake when exercise and the insulin clamp were performed separately. The magnitude of rise in glucose uptake correlated closely with the increase in leg blood flow (r = 0.935, P less than 0.001), suggesting that the synergism is the result of increased blood flow and increased capillary surface area to exercising muscle. More than 85% of total body glucose metabolism during studies 1 and 3 was accounted for by skeletal muscle uptake. These results demonstrate that (a) insulin and exercise act synergistically to enhance glucose disposal in man, and (b) muscle is the primary tissue responsible for the increase in glucose metabolism following hyperinsulinemia and exercise.

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 · 10.1172/jci110399

Cites

35 of 35 references verified0 citation errors · 0 not checkable

Statistics

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?

  • Skeletal muscle is responsible for around 80% of insulin-stimulated glucose disposal.

    “Skeletal muscle is responsible for around 80% of insulin-stimulated glucose disposal [23-25]; therefore, responsiveness to insulin in this tissue is important for regulating whole-body insulin sensitivity.”

    From AMPK and Exercise: Glucose Uptake and Insulin Sensitivity (2013) · cites this paper as [24]

Self-check

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

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

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
DeFronzo, R. A., Ferrannini, E., Sato, Y., Felig, P., & Wahren, J.
Affiliations
  • Yale New Haven Hospital (US)
  • University of Pisa (IT)
  • Karolinska Institutet (SE)
Venue
Journal of Clinical Investigation
Published
1981-12-01
Volume
68
Issue
6
Pages
1468-1474
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2122953585
Cited by
415
References
35
Citations by year
2026: 5 · 2025: 8 · 2024: 10 · 2023: 11 · 2022: 17 · 2021: 12 · 2020: 16 · 2019: 15 · 2018: 17 · 2017: 14 · 2016: 16 · 2015: 11 · 2014: 13 · 2013: 17 · 2012: 12
FWCI
8.64
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • CINECA IRIS Institutial research information system (University of Pisa) (submittedVersion)
Funders
  • National Institutes of Health (5r01am013526-16)
  • Medical Research Council
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
Keywords
physical activity, insulin, glucose uptake, hyperinsulinemia, insulin resistance, skeletal muscle glucose metabolism, leg blood flow, capillary surface area, glucose disposal
MeSH terms
Adult, Physical Exertion, Glucose, Humans, Hyperinsulinism, Infusions, Parenteral, Insulin, Leg, Male, Muscles, Regional Blood Flow, Time Factors

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