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John H. Hollman, Tyler A. Berling, Ellen O. Crum, Kelsie M. Miller, Brent T. Simmons and James W. Youdas

performed without specific cueing strategies, hamstring recruitment preceded gluteus maximus recruitment; however, verbal cueing to extend the hip with gluteal muscles resulted in near simultaneous gluteus maximus and hamstring recruitment and stronger gluteal activation. 11 The supine bridging exercise is

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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.

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Rebecca J. Guthrie, Terry L. Grindstaff, Theodore Croy, Christopher D. Ingersoll and Susan A. Saliba

Context:

Individuals with low back pain (LBP) are thought to benefit from interventions that improve motor control of the lumbopelvic region. It is unknown if therapeutic exercise can acutely facilitate activation of lateral abdominal musculature.

Objective:

To investigate the ability of 2 types of bridging-exercise progressions to facilitate lateral abdominal muscles during an abdominal drawing-in maneuver (ADIM) in individuals with LBP.

Design:

Randomized control trial.

Setting:

University research laboratory.

Participants:

51 adults (mean ± SD age 23.1 ± 6.0 y, height 173.6 ± 10.5 cm, mass 74.7 ± 14.5 kg, and 64.7% female) with LBP. All participants met 3 of 4 criteria for stabilization-classification LBP or at least 6 best-fit criteria for stabilization classification.

Interventions:

Participants were randomly assigned to either traditional-bridge progression or suspension-exercise-bridge progression, each with 4 levels of progressive difficulty. They performed 5 repetitions at each level and were progressed based on specific criteria.

Main Outcome Measures:

Muscle thickness of the external oblique (EO), internal oblique (IO), and transversus abdominis (TrA) was measured during an ADIM using ultrasound imaging preintervention and postintervention. A contraction ratio (contracted thickness:resting thickness) of the EO, IO, and TrA was used to quantify changes in muscle thickness.

Results:

There was not a significant increase in EO (F 1,47 = 0.44, P = .51) or IO (F 1,47 = .30, P = .59) contraction ratios after the exercise progression. There was a significant (F 1,47 = 4.05, P = .05) group-by-time interaction wherein the traditional-bridge progression (pre = 1.55 ± 0.22; post = 1.65 ± 0.21) resulted in greater (P = .03) TrA contraction ratio after exercise than the suspension-exercise-bridge progression (pre = 1.61 ± 0.31; post = 1.58 ± 0.28).

Conclusion:

A single exercise progression did not acutely improve muscle thickness of the EO and IO. The magnitude of change in TrA muscle thickness after the traditional-bridging progression was less than the minimal detectable change, thus not clinically significant.

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TaeYeong Kim, JaeHyuk Lee, SeJun Oh, Seungmin Kim and BumChul Yoon

-up  Stretching 5 5 5 5 Workout  Supine pelvic lift 15 10 5 5  Bridging exercise 15 20 15 10  Side-lying hip abduction – – 10 15 Cooldown  Stretching 5 5 5 5 Abbreviations: SHR, simulated horseback riding; STB, stabilization. SHR Exercise Professionals of physical therapy, equine science, and motor control had

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Jeff A. Nessler, Thomas Hastings, Kevin Greer and Sean C. Newcomer

Rehabil. 2009 ; 22 ( 4 ): 205 – 211 . PubMed doi: 10.3233/BMR-2009-0235 20023351 10.3233/BMR-2009-0235 28. Mello RG , Carrico IR , da Matta TT , Nadal J , Oliveira LF . Lumbar multifidus and erector spinae electromyograms during back bridge exercise in time and frequency domains . J Back

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Andrea Biscarini, Samuele Contemori and Giuditta Grolla

, compared with the ground. In the bridge exercise, the SA activation was negligible, even when this exercise was performed on the WWB (mean and peak activity of 4% and 9% 1RM, respectively). In this condition, transversal stability of the thoracic spine and scapula–humeral complex was provided mainly by the

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Annika Kruse, Christian Schranz, Martin Svehlik and Markus Tilp

lower limb exercises ( 30 ) in sets with 10–12 repetitions organized in 3 circuits: sit-to-stand exercise, heel raises, forward lunges, lateral step-up exercise, and bridging exercise. Exercises were conducted in a controlled manner, with a slow to moderate speed, and a 2-minute break between sets