Search Results

You are looking at 1 - 10 of 572 items for :

  • "electromyography" x
  • Refine by Access: All Content x
Clear All
Restricted access

Allison L. Kinney, Matthew Giel, Brady Harre, Kyle Heffner, Timothy McCullough, Maria Savino, Alexi Scott, and Joaquin A. Barrios

test for the trunk extensors. 11 , 12 The proposed task is to maintain the upper body in a side-lying but unsupported horizontal position while stabilizing the pelvis and lower limbs via strapping to a plinth. In this study, we compare the electromyography (EMG) results for this trunk-elevated side

Restricted access

Bret Contreras, Andrew D. Vigotsky, Brad J. Schoenfeld, Chris Beardsley, and John Cronin

Bridging exercise variations are well researched and commonly employed for both rehabilitation and sport performance. However, resisted bridge exercise variations have not yet been compared in a controlled experimental study. Therefore, the purpose of this study was to compare the differences in upper and lower gluteus maximus, biceps femoris, and vastus lateralis electromyography (EMG) amplitude for the barbell, band, and American hip thrust variations. Thirteen healthy female subjects (age = 28.9 y; height = 164.3 cm; body mass = 58.2 kg) familiar with the hip thrust performed 10 repetitions of their 10-repetition maximum of each variation in a counterbalanced and randomized order. The barbell hip thrust variation elicited statistically greater mean gluteus maximus EMG amplitude than the American and band hip thrusts, and statistically greater peak gluteus maximus EMG amplitude than the band hip thrust (P ≤ .05), but no other statistical differences were observed. It is recommended that resisted bridging exercise be prescribed according to the individual’s preferences and desired outcomes.

Restricted access

Bret Contreras, Andrew D. Vigotsky, Brad J. Schoenfeld, Chris Beardsley, and John Cronin

Front, full, and parallel squats are some of the most popular squat variations. The purpose of this investigation was to compare mean and peak electromyography (EMG) amplitude of the upper gluteus maximus, lower gluteus maximus, biceps femoris, and vastus lateralis of front, full, and parallel squats. Thirteen healthy women (age = 28.9 ± 5.1 y; height = 164 ± 6.3 cm; body mass = 58.2 ± 6.4 kg) performed 10 repetitions of their estimated 10-repetition maximum of each respective variation. There were no statistical (P = .05) differences between full, front, and parallel squats in any of the tested muscles. Given these findings, it can be concluded that the front, full, or parallel squat can be performed for similar EMG amplitudes. However, given the results of previous research, it is recommended that individuals use a full range of motion when squatting, assuming full range can be safely achieved, to promote more favorable training adaptations. Furthermore, despite requiring lighter loads, the front squat may provide a similar training stimulus to the back squat.

Restricted access

David Phillips and Andrew Karduna

Electromyography (EMG) is a tool to determine the electrical behavior of muscles during a contraction. EMG can be measured simultaneously with an applied force to determine the relationship of EMG and an external load. This relationship may change depending on the rate of force development, 1

Restricted access

Benjamin S. Killen, Krista L. Zelizney, and Xin Ye

, biceps femoris; CI, confidence interval; EMG, electromyography; Post, after intervention; Pre, before intervention; ROM, range of motion; SAFR, self-administered foam rolling intervention; SEMI, semitendinosus; SS, static stretching intervention. *Statistically significant difference ( P  ≤ .05

Restricted access

Soo-Yong Kim, Jae-Seop Oh, and Min-Hyeok Kang

rotation during the bridge exercise. We hypothesized that pressing pressure on the sling system and bilateral electromyography (EMG) activity of the hip- and back-extensor muscles would be more symmetrical while the amount of pelvic rotation would decrease during the bridge exercise with visual biofeedback

Restricted access

Damien Moore, Adam I. Semciw, Jodie McClelland, Henry Wajswelner, and Tania Pizzari

-strengthening programs for people with lower-limb osteoarthritis. 23 – 25 The lack of research evaluating GMin function in exercise is likely due to the technical difficulty of accessing this muscle with intramuscular electromyography (EMG). 26 Some rehabilitation exercises for the GMin segments have been recently

Restricted access

Jayshree Shah, Tarushi Tanwar, Iram Iram, Mosab Aldabbas, and Zubia Veqar

. 15 , 16 Many studies have been conducted to investigate the correlation between muscle activity and quadruped exercise with surface electromyography (SEMG), as it helps in understanding the role of individual muscles during exercise and it directly examines the muscle function, which allows for a

Restricted access

Dae-Hyun Kim, Jin-Hee Lee, Seul-Min Yu, and Chang-Man An

previous studies have suggested the ankle position as a factor that may affect the QF strengthening exercise. 17 , 18 In these studies, the active dorsiflexion (AD) or active plantar flexion (AP) position was found to have superior QF electromyography (EMG) activity than the neutral position (NP), and the

Restricted access

Billy Chun-Lung So, Calvin Hong-Nin Yuen, Ken Long-Hin Tung, Sheena Lam, Sammy Lan Cheng, Zina Wing-Lam Hung, Rainy Wai-Kwan Leung, and Grace Pui-Yuk Szeto

recent childbirth • Consumption of any medication that prevents aerobic exercise or running in water Procedures This was a cross-sectional study designed to explore the differences in trunk muscle activation between HK-DWR, CC-DWR, and LW using healthy subjects. Electromyography (EMG) signals were