Evidence map›Paper›PMID 36355822›Full record

ArticleSports (Basel, Switzerland)2022

Test-Retest Reliability and Sensitivity of Common Strength and Power Tests over a Period of 9 Weeks.

Maria Venegas-Carro, Andreas Kramer, Maria Moreno-Villanueva, Markus Gruber

Abstract read
In one paragraph

Article in Sports (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 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

18 citing papers in PubMed, 1 synthesis or guideline 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

4 authors.

Maria Venegas-CarroHuman Performance Research Centre, Department of Sport Science, University of Konstanz, 78464 Konstanz, Germany.ORCID 0000-0002-7156-4810
Andreas KramerHuman Performance Research Centre, Department of Sport Science, University of Konstanz, 78464 Konstanz, Germany.ORCID 0000-0002-2586-5508
Maria Moreno-VillanuevaHuman Performance Research Centre, Department of Sport Science, University of Konstanz, 78464 Konstanz, Germany.
Markus GruberHuman Performance Research Centre, Department of Sport Science, University of Konstanz, 78464 Konstanz, Germany.ORCID 0000-0002-0233-3912

Funding

German Aerospace Center FKZ50WB1734
6 · The paper itself

Abstract

This study evaluated the reliability and sensitivity of a set of different common strength and power tests in a healthy adult population in a span of 9 weeks. Seventeen subjects (24.2 ± 2.2 years, 1.75 ± 0.10 m, 68.6 ± 14.2 kg, seven women) participated in the study. We tested countermovement jumps, reactive hops, and the maximal voluntary contraction (MVC) of handgrip and isometric knee extension. The tests were conducted in three separate sessions across a nine-week period, with one week between the first two sessions and eight weeks between the second and the third. Reliability and sensitivity statistics for each test were calculated for both the average of three trials and the best result during each session. The MVC of isometric knee extension and handgrip, as well as the countermovement jump test, demonstrated very high reliability and sensitivity over the nine-week period. The peak force of the reactive hops demonstrated high reliability but high sensitivity only for the average but not for the best result. The average contact time of reactive hops was neither a sensitive nor reliable measurement. In conclusion, isometric maximal knee extension and handgrip tests, as well as countermovement jumps and peak force of reactive hops, can be used as reliable and sensitive measurements of isometric and reactive strength and power over time periods of up to eight weeks. We recommend the use of the average results of three trials instead of the best performance value for longitudinal studies, as this procedure produces more consistent results and a lower measurement error.

Indexed as

CMJcountermovement-jumphandgrip strengthknee extensionMVCreactive hopreliabilitysensitivity

Identifiers

PMID36355822
PMCPMC9696873

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Registered trials

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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.