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Record W4403905045 · doi:10.1016/j.jshs.2024.101005

Muscle power: A simple concept causing much confusion

2024· article· en· W4403905045 on OpenAlexaff
Azim Jinha, Walter Herzog

Bibliographic record

VenueJournal of sport and health science/Journal of Sport and Health Science · 2024
Typearticle
Languageen
FieldEngineering
TopicMuscle activation and electromyography studies
Canadian institutionsUniversity of Calgary
Fundersnot available
KeywordsConfusionSimple (philosophy)Power (physics)Computer sciencePsychologyEpistemologyPhilosophyPsychoanalysisPhysics

Abstract

fetched live from OpenAlex

When searching for the term "muscle power" on Google Scholar, about 3.7 million hits come up in 60 ms, and for the past 3 years, there were approximately 225 yearly peer-reviewed publications dealing with muscle power.Muscle power has been used to assess and predict athletic performance, to determine muscle rehabilitation following injury or disease, to measure functional decline as occurs in aging, and many other topics.In 1984, Alan McComas and colleagues from McMaster University organized a conference entitled "human muscle power".It was the first muscle conference I (Walter Herzog) attended, and probably the first that dealt with muscle power exclusively.The distinct memory that remains from that conference is the confusion the term "muscle power" generated, a confusion that was caused by scientists from different disciplines interpreting power in different ways and rarely defining it.Advancing 40 years, Ronei Pinto and colleagues organized an international symposium on muscle power at the Federal University of Rio Grande do Sul in 2024.Like for the first conference 40 years earlier, muscle researchers from a variety of fields, including biomechanics, physiology, strength and conditioning, biochemistry, and energetics, were represented.Once again, the use of the term "muscle power" differed from one field to another, and few speakers defined it.Moreover, muscle power was associated with performance criteria such as the height achieved in a vertical jump or the change in kinetic energy and linear momentum of a system, criteria that do not depend on, and do not relate to, muscle power in a causal (mechanical) manner, resulting in misunderstandings between researchers across disciplines.The purpose of this paper is to clarify what "mechanical power" is, how it is defined, and how it may be used in the proper physical sense in muscle mechanics.This definition may then be a guide for how the term "muscle power" may be/ should be used to avoid further confusion.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.006
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.073
Threshold uncertainty score0.799

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0060.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.002
Science and technology studies0.0010.001
Scholarly communication0.0000.002
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.032
GPT teacher head0.330
Teacher spread0.298 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations6
Published2024
Admission routes1
Has abstractyes

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