Relationship between hand dynamometer results and blood plasma lactic acid as indicators of muscle fatigue

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dc.contributor.authorRamba, Yonathan
dc.contributor.authorKapoor, Gaurav
dc.contributor.authorHendrik, Hendrik
dc.contributor.authorArpandjam’an
dc.contributor.departmentSin departamento asociado
dc.date.accessioned2026-02-25T13:59:36Z
dc.date.available2026-02-25T13:59:36Z
dc.date.issued2026
dc.description.abstractFatigue is a protective mechanism of the body that prevents continuous injury and allows recovery after rest. This study aimed to determine the correlation between the results of examining the level of muscle fatigue in the hands of computer operators between the measurement of the blood plasma lactic acid method and the hand dynamometer method. This study was conducted using an observational, cross-sectional design. The study population consisted of male computer operators aged 20–30 years. The sample was selected based on the following inclusion criteria: no history of specific medical conditions such as diabetes mellitus, heart disease, or kidney disorders, and at least one year of experience as a computer operator. Based on these criteria, the final sample included 127 subjects. The results of the paired t-test showed a significant decrease in handgrip strength measured with a dynamometer, with values of 43.25±3.32 before work and 41.45±3.62 after work (p<0.05). Similarly, blood plasma lactic acid levels showed a significant increase, from 2.93±0.29 before work to 3.67±0.57 after 4 hours of typing (p<0.05). These results indicate a relationship between handgrip strength and lactic acid levels, supporting their use as indicators of arm muscle fatigue in computer operators.
dc.formatapplication/pdf
dc.format.extent10
dc.identifier.citationSPORT TK. Year 2026. Volume 15. Article 1.
dc.identifier.doihttps://doi.org/10.6018/sportk.570471
dc.identifier.eissn2340-8812
dc.identifier.urihttp://hdl.handle.net/10201/213342
dc.languageeng
dc.publisherServicio de Publicaciones. Universidad de Murcia
dc.relationSin financiación externa a la Universidad
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectHand Dynamometer
dc.subjectBlood Plasma Lactic Acid Level
dc.subjectMuscle Fatigue
dc.subject.odsNo relacionado con ningún objetivo de desarrollo sostenible
dc.titleRelationship between hand dynamometer results and blood plasma lactic acid as indicators of muscle fatigue
dc.typeinfo:eu-repo/semantics/article
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Sport TK Vol.15 (2026)