Student or educator? Sign up with your school email and get 6 months of Pro free.
CoChat
Sign Up
Cited by 264

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

Power output and muscle metabolism during and following recovery from 10 and 20 s of maximal sprint exercise in humans

BOGDANIS, G.C., NEVILL, M.E., LAKOMY, H.K.A., BOOBIS, L.H.·1998·Acta Physiologica Scandinavica
DOI 10.1046/j.1365-201x.1998.00378.x
Open this paper in CoChat — free account

Abstract

On two separate days eight male subjects performed a 10‐ or 20‐s cycle ergometer sprint (randomized order) followed, after 2 min of recovery, by a 30‐s sprint. Muscle biopsies were obtained from the vastus lateralis at rest, immediately after the first sprint and after the 2 min of recovery on both occasions.The anaerobic ATP turnover during the initial 10 s of sprint 1 was 129 ± 12 mmol kg dry weight−1 and decreased to 63 ± 10 mmol kg dry weight−1 between the 10th and 20th s of sprint 1. This was a result of a 300% decrease in the rate of phosphocreatine breakdown and a 35% decrease in the glycolytic rate. Despite this 51% reduction in anaerobic ATP turnover, the mean power between 10 and 20 s of sprint 1 was reduced by only 28%. During the same period, oxygen uptake increased from 1.30 ± 0.15 to 2.40 ± 0.23 L min−1, which partially compensated for the decreased anaerobic metabolism. Muscle pH decreased from 7.06 ± 0.02 at rest to 6.94 ± 0.02 after 10 s and 6.82 ± 0.03 after 20 s of sprinting (for all changes P < 0.01). Muscle pH did not change following a 2‐min recovery period after both the 10‐ and 20‐s sprints, but phosphocreatine was resynthesized to 86 ± 3 and 76 ± 3% of the resting value, respectively (n.s. 10‐ vs. 20‐s sprint). Following 2 min of recovery after the 10‐s sprint subjects were able to reproduce peak but not mean power. Restoration of both mean and peak power following the 20‐s sprint was 88% of sprint 1, and was lower compared with that after the 10‐s sprint (P < 0.01). Total work during the second 30‐s sprint after the 10‐ and the 20‐s sprint was 19.3 ± 0.6 and 17.8 ± 0.5 kJ, respectively (P < 0.01). As oxygen uptake was the same during the 30‐s sprints (2.95 ± 0.15 and 3.02 ± 0.16 L min−1), and [Phosphocreatine] before the sprint was similar, the lower work may be related to a reduced glycolytic ATP regeneration as a result of the higher muscle acidosis.

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 · 10.1046/j.1365-201x.1998.00378.x

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

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

Show all 2 references

Cited by

Metadata

Authors
BOGDANIS, G. C., NEVILL, M. E., LAKOMY, H. K. A., & BOOBIS, L. H.
Venue
Acta Physiologica Scandinavica
Publisher
Wiley
Published
1998-06
Volume
163
Issue
3
Pages
261-272
ISSN
  • 0001-6772 (ISSN-L)
  • 1365-201X
DOI
10.1046/j.1365-201x.1998.00378.x
OpenAlex
W1977503568
Cited by
264
References
2
FWCI
3.56
Type
journal article
Language
en
Open access
closed

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.