Lower limb muscle activity during first and second tennis serves: a comparison of three surface electromyography normalisation methods.

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State: Public
Version: Final published version
License: CC BY-NC-ND 4.0
Serval ID
serval:BIB_DB99162A0C00
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Lower limb muscle activity during first and second tennis serves: a comparison of three surface electromyography normalisation methods.
Journal
Sports biomechanics
Author(s)
Hansen C., Teulier C., Micallef J.P., Millet G.P., Girard O.
ISSN
1752-6116 (Electronic)
ISSN-L
1476-3141
Publication state
In Press
Peer-reviewed
Oui
Language
english
Notes
Publication types: Journal Article
Publication Status: aheadofprint
Abstract
We assessed lower limb muscle activity during the execution of first and second tennis serves, exploring whether the extent of these differences is influenced by the chosen method for normalising surface electromyography (EMG) data. Ten male competitive tennis players first completed three rounds of maximal isometric voluntary contractions (MVC) of knee extensors and plantar flexors for the left (front) and right (back) leg separately, and three squat jumps. Afterward, they executed ten first and ten-second serves. Surface EMG activity of four lower limb muscles (vastus lateralis, rectus femoris, gastrocnemius lateralis, and soleus muscles) on each leg was recorded and normalised in three different ways: to MVC; to peak/maximal activity measured during squat jump; and to the actual serve. For the rectus femoris and soleus muscles of the left leg, and the gastrocnemius lateralis and soleus muscles of the right leg, EMG amplitude differed significantly between normalisation techniques (P ≤ 0.012). All muscles showed greater activity during the first serve, although this difference was only statistically significant for the right vastus lateralis muscle (P = 0.014). In conclusion, the EMG normalisation method selected may offer similar information when comparing first and second serve, at least for leg muscles studied here.
Keywords
Electromyography, knee extensors, normalisation methods, plantar flexors, racket sports
Pubmed
Web of science
Open Access
Yes
Create date
23/11/2023 14:56
Last modification date
05/12/2023 7:17
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