Performance Analysis of Finger Flexor and Finger Extensor Muscles on Wall Climbing Athletes through Electromyography Measurement, Handgrip Strength, Handgrip Endurance and Lactate Acid
Abstract
One of activities involved gripping activity is wall climbing sport. Physiologically, gripping activity involves finger flexor and finger extensor muscles at the lower arm.
Naturally, muscles performance will decrease if muscles are given static or dynamic weight during certain time. This performance decrease is related with fatigue condition, which is also related with lactate acid accumulation, insufficient of metabolic reserve, and the decrease of neural activity in stimulating contraction[2].
Muscle fatigue characteristic experienced by participants were observed from the changing trend of Power Spectral Density (PSD) and median frequency of EMG signals, lactate acid level, and changing of handgrip strength and handgrip endurance values from four groups of measurement data.
The experiment was involving two professional wall climbing athletes as participants. The measurements were performed four times, which were before and soon after climbing, after first 15 minutes and after the second 15 minutes active recovery process, except for lactate acid level, measurements were performed twice, which were before and soon after climb activity. The athlete would have been ordered to climb the boulder for 15 minutes with a certain difficulty level.
Muscle performance measurement involved in this gripping activity was very important to know how far the influence of difference of subject and period of active recovery to recover muscle condition. By this knowledge, a couch or an athlete can arrange an effective training strategy to reach a maximum achievement.
Keywords: Electromyography, handgrip endurance, handgrip strength, Power Spectral Density, median frequency, finger flexor and finger extensor, lactate acid, fatigue
Published
How to Cite
Issue
Section
An author who publishes in the Jurnal Otomasi Kontrol dan Instrumentasi agrees to the following terms:
- The author retains the copyright and grants the journal the right of first publication of the work simultaneously licensed under the Creative Commons Attribution-ShareAlike 4.0 License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal
- Author can enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book) with the acknowledgement of its initial publication in this journal.
