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Relationship Between Speed of Performing Leg Extension With 30 RM Load and the Selected EMG Variables of Selected Quadricep Muscles

Relationship Between Speed of Performing Leg Extension With 30 RM Load and the Selected EMG Variables of Selected Quadricep Muscles

Dhananjoy Shaw, Deepak Singh, Umesh Kumar Ahlawat, Manvinder Kaur, Dinesh Bhatia
Copyright: © 2021 |Volume: 10 |Issue: 1 |Pages: 16
ISSN: 2161-1610|EISSN: 2161-1629|EISBN13: 9781799862727|DOI: 10.4018/IJBCE.2021010105
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MLA

Shaw, Dhananjoy, et al. "Relationship Between Speed of Performing Leg Extension With 30 RM Load and the Selected EMG Variables of Selected Quadricep Muscles." IJBCE vol.10, no.1 2021: pp.61-76. http://doi.org/10.4018/IJBCE.2021010105

APA

Shaw, D., Singh, D., Ahlawat, U. K., Kaur, M., & Bhatia, D. (2021). Relationship Between Speed of Performing Leg Extension With 30 RM Load and the Selected EMG Variables of Selected Quadricep Muscles. International Journal of Biomedical and Clinical Engineering (IJBCE), 10(1), 61-76. http://doi.org/10.4018/IJBCE.2021010105

Chicago

Shaw, Dhananjoy, et al. "Relationship Between Speed of Performing Leg Extension With 30 RM Load and the Selected EMG Variables of Selected Quadricep Muscles," International Journal of Biomedical and Clinical Engineering (IJBCE) 10, no.1: 61-76. http://doi.org/10.4018/IJBCE.2021010105

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Abstract

The aim of the study was to assess the effects of speed of leg extension exercise with 30 RM load on the EMG activity of Vastus Medialis (VM) and Vastus Lateralis (VL). Seventeen healthy male subjects performed 30 repetition of leg extension exercise with 30 RM load in minimum time possible and EMG activity from VM and VL of right lower extremity was recorded simultaneously. Two new criteria, namely gross load speed of movement (GLSM) and relative load speed of movement (RLSM) were developed as the variables of speed of exercise. Selected variables of EMG activity were median frequency (MDF), mean frequency (MNF), root mean square (RMS), and integrated EMG (IEMG). Product moment and rank order correlation were calculated between the selected variables of EMG activity and selected variables of speed of exercise. The selected EMG variables, namely MDF and MNF, reported a negative significant relationship (p<0.05) with selected variables of speed of exercise whereas a selected EMG variables, namely RMS reported a positive significant relationship (p<0.05) with selected with the selected variables of speed of exercise.

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