Evidence map›Paper›PMID 2583165›Full record

ArticleEuropean journal of applied physiology and occupational physiology1989

Muscle cross-sectional area and voluntary force production characteristics in elite strength- and endurance-trained athletes and sprinters.

K Häkkinen, K L Keskinen

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Article in European journal of applied physiology and occupational physiology, 1989. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 3 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

K HäkkinenDepartment of Biology of Physical Activity, University of Jyväskylä, Finland.
K L Keskinen

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Seven male elite strength-trained athletes (SA) from different weight categories, six elite sprinters (SPA) and seven elite endurance-trained athletes (EA) volunteered as subjects for examination of their muscle cross-sectional area (CSA), maximal voluntary isometric force, force-time and relaxation-time characteristics of the leg extensor muscles. The SA group demonstrated slightly greater CSA and maximal absolute strength than the SPA group, while the EA group demonstrated the smallest values both in CSA and especially in maximal strength (p less than 0.05). When the maximal forces were related to CSA of the muscles, the mean value for the SA group of 60.8 +/- 10.0 N.cm-2 remained slightly greater than that recorded in the SPA group 55.0 +/- 3.1 N.cm-2 and significantly greater (p less than 0.05) than that recorded in the EA group 49.3 +/- 4.0 N.cm-2. The mean value in the SPA was also significantly greater (p less than 0.05) than that of the EA group. The isometric force-time curves differed between the groups (p less than 0.05-0.01) so that the times taken to produce the same absolute force were the shortest in the SPA group and the longest in the EA group. With force expressed as a percentage of the maximum, the force-time curves showed that the SPA group demonstrated still shorter times to a given value (p less than 0.05), especially at the lower force levels, than the other two groups.(ABSTRACT TRUNCATED AT 250 WORDS)

Indexed as

AdultExerciseHumansIsometric ContractionMaleMusclesPhysical Endurance

Identifiers

PMID2583165

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.