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

Authors

  • Arpandjam’an Department of Physiotherapy, Health Polytechnic, Makassar, South Sulawesi, Indonesia.
  • Yonathan Ramba Department of Physiotherapy, Health Polytechnic, Makassar, South Sulawesi, Indonesia.
  • Gaurav Kapoor Department of Physiotherapy, Faculty of Physiotherapy and Diagnostics, Jayoti Vidyapeeth Women’s University, Jaipur, Rajasthan, India.
  • Hendrik Hendrik Department of Physiotherapy, Health Polytechnic, Makassar, South Sulawesi, Indonesia.
DOI: https://doi.org/10.6018/sportk.570471
Keywords: Muscle Fatigue, Hand Dynamometer, Blood Plasma Lactic Acid Level

Abstract

Fatigue 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.

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Published
24-02-2026
How to Cite
Arpandjam’an, Ramba, Y., Kapoor, G., & Hendrik, H. (2026). Relationship between hand dynamometer results and blood plasma lactic acid as indicators of muscle fatigue. SPORT TK-EuroAmerican Journal of Sport Sciences, 15, 1. https://doi.org/10.6018/sportk.570471
Issue
Vol. 15 (2026)
Section
Articles

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The works and papers that are published in this Journal are subject to the following terms:

1. The Publication Service of the University of Murcia (the publisher) has the Publication Rights (Copyright) to the published papers and works, and favors and permits the reusing of the same under the license indicated in point 2.

© Servicio de Publicaciones, Universidad de Murcia, 2013

2. The papers and works are to be published in the digital edition of the Journal under the license Creative Commons Reconocimiento-No Comercial-Sin Obra Derivada 3.0 España (legal text). The copying, using, spreading, transmitting and publicly displaying of the papers, works or publication are permitted as long as: i) the authors and original sources (Journal, publisher and URL of the publication) are quoted; ii) it is not used for commercial benefit; iii) the existence and specifications of this users license are mentioned.

3. Conditions of Self-Archiving. It is permitted and encouraged that the authors spread electronically the pre-print (before printing) and/or post-print (the revised, evaluated and accepted) versions of their papers or works before their publication since this favors their circulation and early diffusion and therefore can help increase their citation and quotation, and also there reach through the academic community.