Electromyographic Analysis of Transversus Abdominis and Lumbar Multifidus Using Wire Electrodes During Lumbar Stabilization Exercises

Okubo, Yu; Kaneoka, Koji; Imai, Atsushi; Shiina, Itsuo; Tatsumura, Masaki; Izumi, Shigeki; Miyakawa, Shlimpei

doi:10.2519/jospt.2010.3192

Cited by 134 publications

(135 citation statements)

References 40 publications

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“…Manual resistance was not added in MVC of the TrA. The measurement of MVC of the TrA was carried out according to previous studies [31][32][33] , however attention is necessary for the difference of the property of MVC.…”

Section: Discussionmentioning

confidence: 99%

Analysis of muscle activity during active pelvic tilting in sagittal plane

et al. 2016

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Section: Discussionmentioning

confidence: 99%

Analysis of muscle activity during active pelvic tilting in sagittal plane

et al. 2016

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“…RA electrode placement was 3 cm lateral to the umbilicus. 26,30,31 EO electrode placement was midway between the costal margin of the ribs and the iliac crest, approximately 45° to horizontal. 26,30,31 A reference electrode was placed over the sternum.…”

Section: Electromyographymentioning

confidence: 99%

Abdominal Muscle Activity During a Standing Long Jump

Okubo¹,

Kaneoka²,

Shiina³

et al. 2013

J Orthop Sports Phys Ther

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“…Our findings resemble those of previous EMG studies that demonstrated the efficacy of bent-knee sit-up and crunch exercises in recruiting the rectus abdominis and external/internal oblique muscles. [3][4][5][6][7][8][9][10] The transversus abdominis also shows moderate EMG activity during the crunch exercise. 4,9 On the other hand, the ADC values of the intrinsic back muscles significantly decreased after bent-knee sit-up and crunch exercises.…”

Section: Discussionmentioning

confidence: 99%

“…[3][4][5][6][7][8][9][10] The transversus abdominis also shows moderate EMG activity during the crunch exercise. 4,9 On the other hand, the ADC values of the intrinsic back muscles significantly decreased after bent-knee sit-up and crunch exercises. Because we obtained DW images with a comparatively high b-value (700 s/mm 2 ), these decreased ADC values may reflect decreased water diffusion rather than reduced microcirculation within the intrinsic back muscles.…”

Section: Discussionmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9][10][11] It is a useful tool but is reported to have some methodological limitations. Surface EMG data may be affected by the confounding myoelectric signal resulting from crosstalk among adjacent muscles, 12,13 variability in the myoelectric signal attributed to subcutaneous tissue, 14 and electrode type and placement.…”

Section: Introductionmentioning

confidence: 99%

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Noninvasive Evaluation of Trunk Muscle Recruitment after Trunk Exercises using Diffusion-weighted MR Imaging

et al. 2015

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Purpose: We evaluated trunk muscle recruitment in abdominal and back exercises with magnetic resonance (MR) diffusion-weighted imaging.Methods: Twelve men performed bent-knee sit-up, crunch, trunk lateral flexion, and trunk extension exercises. We obtained axial diffusion-weighted images of the trunk before and after each exercise using a 1.5-tesla MR system, calculated apparent diffusion coefficient (ADC) values from the right and left rectus abdominis, lateral abdominal, psoas major, quadratus lumborum, and intrinsic back muscles to evaluate the activity of these muscles during each exercise, and compared ADC values before and after exercise using a paired t-test.Results: The ADCs of the rectus abdominis (right, +19.1%; left, +11.7%), lateral abdominal (right, +15.5%; left, +14.1%), and psoas major (right, +14.8%; left, +15.9%) muscles on both sides increased after the bent-knee sit-up (P < 0.01). The ADCs of the rectus abdominis (right, +16.8%; left, +10.2%) and lateral abdominal (right, +8.4%; left, +7.0%) muscles on both sides increased after the crunch exercise (P < 0.01). Trunk lateral flexion resulted in increased ADC on only the right side of all of the muscles (rectus abdominis, +12.3%; lateral abdominal muscles, +20.3%; quadratus lumborum, +17.1%; intrinsic back muscles, +12.0%; psoas major, +15.4%) (P < 0.01). The ADCs of the lateral abdominal (right, +5.2%; left, +5.6%), quadratus lumborum (right, +6.0%; left, +3.0%), and intrinsic back (right, +13.2%; left, +14.6%) muscles on both sides were elevated after trunk extension (right lateral abdominal muscles and left quadratus lumborum, P < 0.05; other muscles, P < 0.01).Conclusion: Diffusion-weighted imaging reveals the recruitment patterns of superficial and deep trunk muscles in abdominal and back exercises through exercise-induced activation in intramuscular water movement.

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Electromyographic Analysis of Transversus Abdominis and Lumbar Multifidus Using Wire Electrodes During Lumbar Stabilization Exercises

Cited by 134 publications

References 40 publications

Analysis of muscle activity during active pelvic tilting in sagittal plane

Analysis of muscle activity during active pelvic tilting in sagittal plane

Abdominal Muscle Activity During a Standing Long Jump

Noninvasive Evaluation of Trunk Muscle Recruitment after Trunk Exercises using Diffusion-weighted MR Imaging

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