Trial reportClinical interventions in aging2013
Comparison of maximal muscle strength of elbow flexors and knee extensors between younger and older men with the same level of daily activity.
Trial report in Clinical interventions in aging, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 28 citations in OpenAlex.
- Estimating Muscle Parameters via Hierarchical Bayesian Neuromechanics.bioRxiv : the preprint server for biology · 2026Article
- Comparing position sense and isokinetic strength of the muscles of elbow joint between aikidokas and non-athlete people.BMC sports science, medicine & rehabilitation · 2023Article
- Can phase angle from bioelectrical impedance analysis associate with neuromuscular properties of the knee extensors?Frontiers in physiology · 2022Article
- The impact of diabetic neuropathy on the distal versus proximal comparison of weakness in lower and upper limb muscles of patients with type 2 diabetes mellitus: a cross-sectional study.Journal of musculoskeletal & neuronal interactions · 2021Article
- Distinct Trajectories of Individual Physical Performance Measures Across 9 Years in 60- to 70-Year-Old Adults.The journals of gerontology. Series A, Biological sciences and medical sciences · 2020Article
- Normative values of isometric elbow strength in healthy adults: a systematic review.Shoulder & elbow · 2018Review
- Age differences in dynamic fatigability and variability of arm and leg muscles: Associations with physical function.Experimental gerontology · 2017Article
- Superior Effects of Eccentric to Concentric Knee Extensor Resistance Training on Physical Fitness, Insulin Sensitivity and Lipid Profiles of Elderly Men.Frontiers in physiology · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAging promotes neuromuscular loss, significantly reducing muscle strength. The magnitude of loss of strength seems to be different between the limbs, probably because of differences in activities of daily living (ADL). Therefore, the present study compared the muscle strength of the elbow flexors and knee extensors in younger (n = 7, mean age 23.3 ± 1.2 years) and older (n = 5, mean age 61.8 ± 2.6 years) men matched by ADL level.
methodsThe study participants performed maximal concentric, isometric, and eccentric contractions of the elbow flexors and knee extensors using an isokinetic dynamometer following a crossover study design. Changes in the dependent variables were compared using mixed model analysis (limb versus age).
resultsThe main results demonstrated that concentric, eccentric, and mean contraction torques for knee extensors were significantly (P < 0.05) higher for younger men than for elderly men. On the other hand, no statistically significant difference (P > 0.05) was found in concentric, isometric, eccentric, and mean torques for elbow flexors between younger and older individuals.
conclusionThese results show that elbow flexors maintain better strength than knee extensors through aging, even when comparing individuals with similar ADL levels.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.