Saudi Journal of Sports Medicine

ORIGINAL ARTICLE
Year
: 2021  |  Volume : 21  |  Issue : 2  |  Page : 51--58

Comparison of short-term training effects of two neuromuscular electrical stimulation modalities on muscle functions and mass


Abdulaziz Aldayel, Saad Khalid Aljaloud, Sulaiman O Aljaloud 
 Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, Riyadh, Saudi Arabia

Correspondence Address:
Abdulaziz Aldayel
Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, Riyadh
Saudi Arabia

Purpose: The present study thus aimed to compare the effects of neuromuscular electrical stimulation (NMES) training, using alternating current (AC) and pulsed current (PC), on muscle function and muscle mass. Methods: Twenty-thee healthy male university students (age: 22.68 ± 3.7) were enrolled in this study and divided into two groups (AC = 12, PC = 11) to receive NMES training in both legs simultaneously. Each group underwent a 20-min NMES session using AC or PC, 2 days a week for 5 weeks. AC was delivered at 2.5 kHz (burst frequency: 75 Hz and pulse duration: 400 μs) for the knee extensors of both legs, and PC was delivered at 75 Hz (pulse duration: 400 μs), inducing 60 isometric contractions (on–off ratio: 5–15 s) at a knee joint angle of 100° (0° = full extension). Muscle strength, power, and mass were assessed 1 week before and 1 and 6 weeks after the training program. Results: Findings show a significant increase in vertical jump height after both NMES training, although no torque gain was detected regardless of the type of modality. A significant increase in the region fat-free mass (trained legs) in both NMES currents without a difference between them was observed in the function of the trained muscles. Conclusion: Short-term training (5 weeks) using AC or PC could be insufficient to detect an improvement in muscle functions such as torque gain. However, the short-term training using AC may improve physical performance and body composition.


How to cite this article:
Aldayel A, Aljaloud SK, Aljaloud SO. Comparison of short-term training effects of two neuromuscular electrical stimulation modalities on muscle functions and mass.Saudi J Sports Med 2021;21:51-58


How to cite this URL:
Aldayel A, Aljaloud SK, Aljaloud SO. Comparison of short-term training effects of two neuromuscular electrical stimulation modalities on muscle functions and mass. Saudi J Sports Med [serial online] 2021 [cited 2021 Dec 8 ];21:51-58
Available from: https://www.sjosm.org/article.asp?issn=1319-6308;year=2021;volume=21;issue=2;spage=51;epage=58;aulast=Aldayel;type=0