The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Fiber type and citrate synthase activity in the human gastrocnemius and vastus lateralis with aging
Abstract
The purpose of this study was to determine whether enzymatic and histochemical characteristics of human skeletal muscle are altered with aging. Tissues from the vastus lateralis (VL) and gastrocnemius were analyzed for citrate synthase (CS) activity and fiber type in 55 sedentary men (age range 18–80 yr). In this population, CS activity in the gastrocnemius was negatively related to age ( r = −0.32, P < 0.05); there was no relationship in the VL. Treadmill-determined maximal oxygen consumption was positively related ( r = 0.40, P < 0.05) to CS in the gastrocnemius but not in the VL. CS activity in the gastrocnemius was 24% lower in the oldest (≥60 yr, n = 10) vs. the youngest (≤30 yr; n = 12) men; there was no change in CS activity in the VL with aging. No changes in fiber type were evident with age in either muscle. These data suggest a reduction in oxidative enzyme activity in human skeletal muscle with the aging process; this relationship may be muscle-group specific.
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.
Integrity signals
Registry
Cites
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.
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
Human aging, muscle mass, and fiber type composition.
Evans, W. J., & Lexell, J. (1995) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/50a.special_issue.11 · Cited by 1,308
Lexell, J., Henriksson‐Larsén, K., Winblad, B., & Sjöström, M. (1983) · Muscle & Nerve · doi:10.1002/mus.880060809 · Cited by 582 · cited 3×
“Again, the literature is controversial as in the vastus lateralis an increase in the relative percentage of type I fibers (22, 27) or no change (1, 2, 12, 21, 24, 25) in fiber type has been reported with aging.”
BackgroundMethodMcCully, K. K., Fielding, R. A., Evans, W. J., Leigh, J. S., & Posner, J. D. (1993) · Journal of Applied Physiology · doi:10.1152/jappl.1993.75.2.813 · Cited by 288
Cited by
Sarcopenia: Aging-Related Loss of Muscle Mass and Function
Larsson, L., Degens, H., Li, M., Salviati, L., Lee, Y. I., Thompson, W., Kirkland, J. L., & Sandri, M. (2019) · Physiological Reviews · doi:10.1152/physrev.00061.2017 · Cited by 1,797
Decline in skeletal muscle mitochondrial function with aging in humans
Short, K. R., Bigelow, M. L., Kahl, J., Singh, R., Coenen-Schimke, J., Raghavakaimal, S., & Nair, K. S. (2005) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0501559102 · Cited by 1,333
Effects of Resistance Training on Older Adults
Hunter, G. R., McCarthy, J. P., & Bamman, M. M. (2004) · Sports Medicine · doi:10.2165/00007256-200434050-00005 · Cited by 764
Oxidative capacity and ageing in human muscle
Conley, K. E., Jubrias, S. A., & Esselman, P. C. (2000) · The Journal of Physiology · doi:10.1111/j.1469-7793.2000.t01-1-00203.x · Cited by 651
Short, K. R., Vittone, J. L., Bigelow, M. L., Proctor, D. N., Rizza, R. A., Coenen-Schimke, J. M., & Nair, K. S. (2003) · Diabetes · doi:10.2337/diabetes.52.8.1888 · Cited by 631
Metadata
- Authors
- Houmard, J. A., Weidner, M. L., Gavigan, K. E., Tyndall, G. L., Hickey, M. S., & Alshami, A.
- Venue
- Journal of Applied Physiology
- Publisher
- American Physiological Society
- Published
- 1998-10-01
- Volume
- 85
- Issue
- 4
- Pages
- 1337-1341
- ISSN
- 0161-7567 (ISSN-L)
- 8750-7587
- 1522-1601
- OpenAlex
- W2134002692
- Cited by
- 158
- References
- 3
- FWCI
- 7.84
- 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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Fiber type and citrate synthase activity in the human gastrocnemius and vastus lateralis with aging. https://app.cochat.ai/papers/10.1152/jappl.1998.85.4.1337
- The paper
- Houmard, J. A., Weidner, M. L., Gavigan, K. E., Tyndall, G. L., Hickey, M. S., & Alshami, A. (1998). Fiber type and citrate synthase activity in the human gastrocnemius and vastus lateralis with aging. Journal of Applied Physiology. https://doi.org/10.1152/jappl.1998.85.4.1337
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.