Abdominal muscle contraction thickness and function after specific and general exercises: A randomized controlled trial in chronic low back pain patients

Vasseljen, Ottar; Fladmark, Anne Margrethe

doi:10.1016/j.math.2010.04.004

Cited by 97 publications

(99 citation statements)

References 45 publications

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“…42,46,50 USI has also been used for screening purposes 18 and as a source of real-time biofeedback, as it is presumed to be reflective of muscle activity during exercises commonly employed in rehabilitation programs. 15,38 Although some authors have stated that changes in muscle thickness measured with USI can be used as surrogate measures of muscle activity 11,34,42 and activation, 31,40,41,44 evidence T T STUDY DESIGN: Validation study.…”

mentioning

confidence: 99%

Association Between Changes in Electromyographic Signal Amplitude and Abdominal Muscle Thickness in Individuals With and Without Lumbopelvic Pain

Whittaker¹,

McLean²,

Hodder³

et al. 2013

J Orthop Sports Phys Ther

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The muscles of the abdominal wall play a role in controlling motion of the spine, 1,20,21,24 and there is evidence of dysfunction of this musculature in persons with lumbopelvic pain (LPP). Proposed dysfunctions range from delayed onset 23 and seemingly diminished responses (smaller increase in thickness) of the transversus abdominis (TrA) 46,48 to increased electromyographic (EMG) signal amplitude and greater responses (larger increase in thickness) of the rectus abdominis (RA) and external and internal oblique (EO and IO) muscles.2,39,49 As these abnormalities have been linked to pain and dysfunction, there is interest in developing methods to accurately assess function of the abdominal musculature.Ultrasound imaging (USI) is a noninvasive and valid method to quantify abdominal muscle size 19 and is currently used in rehabilitation, in part, under the assumption that changes in muscle thickness reflect the extent of muscle contraction.42,46,50 USI has also been used for screening purposes 18 and as a source of real-time biofeedback, as it is presumed to be reflective of muscle activity during exercises commonly employed in rehabilitation programs. 15,38 Although some authors have stated that changes in muscle thickness measured with USI can be used as surrogate measures of muscle activity 11,34,42 and activation, 31,40,41,44 evidence T T STUDY DESIGN: Validation study. T T OBJECTIVES:To investigate the association between changes in electromyographic (EMG) signal amplitude and sonographic measures of muscle thickness of 4 abdominal muscles, during 2 clinical tests, in adults with and without lumbopelvic pain. T T BACKGROUND:There is a trend in rehabilitation to use ultrasound imaging (USI) to determine the extent of abdominal muscle contraction. However, the literature investigating the relationship between abdominal muscle thickness change and level of activation is inconclusive and has not included clinically relevant tasks. T T METHODS:Simultaneous recording from finewire EMG and USI was performed for 4 abdominal muscles, in 7 adults with lumbopelvic pain (mean  SD age, 29.7  12.0 years) and 7 adults without lumbopelvic pain (32.0  10.6 years), during an active straight leg raise (ASLR) test and an abdominal drawing-in maneuver (ADIM). Cross-correlation functions and linear regression analyses were used to describe the relationship between the 2 measures. Analyses of variance were used to compare individuals with and without lumbopelvic pain, with an alpha set at .05. T T RESULTS:Across all muscles, peak crosscorrelation values were low (ASLR, r = 0.28  0.09; ADIM, r = 0.35  0.11), and there was large variability in associated time lags (ASLR, τ = 0.69  2.56 seconds; ADIM, τ = 0.53  3.75 seconds). Regression analyses did not detect a systematic pattern of association between EMG signal amplitude and USI measurements, and analyses of variance revealed no differences between cohorts.

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mentioning

confidence: 99%

Association Between Changes in Electromyographic Signal Amplitude and Abdominal Muscle Thickness in Individuals With and Without Lumbopelvic Pain

Whittaker¹,

McLean²,

Hodder³

et al. 2013

J Orthop Sports Phys Ther

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“…Prior to performing the exercise, subjects were asked to slowly pull the abdomen toward the spine as a training method to perform the abdominal drawing-in maneuver [10]. This is reported to be an effective exercise method in providing spinal stabilization [11].…”

Section: Dead-bug Exercisementioning

confidence: 99%

Changes in muscle activity of the abdominal muscles according to exercise method and speed during dead bug exercise

yun

Lee

et al. 2017

PTRS

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Objective: There are many types of exercises with upper and lower-limb action for activation of abdominal muscles for trunk stabilization. A comparison of the different exercise methods been very useful to enhance the result from the exercise for treatment. The purpose of this study was to investigate through surface electromyography (EMG) the changes in abdominal muscle activity during the performance of three different dead-bug exercise methods performed at three different speeds. Design: Cross-sectional study. Methods: The subjects were 30 healthy adults (13 males and 17 females). We instructed the subjects to perform three different dead-bug exercises. We also applied three different speeds to the dead-bug exercises; 60 bpm, 90 bpm, and 120 bpm with use of a metronome. The assessment of EMG was percentage of maximal voluntary isometric contraction on the rectus abdominis (RA), external oblique (EO), and internal oblique (IO). Results: EMG activation of the RA, EO and IO muscles was significantly greater at the higher speed (p<0.05). There was a significant increase in abdominal muscle activity during the dead-bug exercise performed with both the upper and lower extremities compared to that with only the upper extremity or the lower extremities (p<0.05).Conclusions: These findings demonstrate that the performance of the dead-bug exercise with both the upper and lower extremities combined at a high speed is more effective compared to other exercises. Therefore, it is suggested that more favourable and effective outcomes may occur when the type and speed of the exercise is chosen appropriately.

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“…In addition, ADIM plus specific ultrasound guided exercise has been suggested as a good method for reducing the pain of patients with chronic lower back pain and for increasing the activities of deep abdominal muscles 6) . However, ADIM which is performed in with performing the maneuver, which requires supine hook-lying posture has disadvantages including difficulty education on the posture and its practice, and inability to measure unable to understand the movements.…”

Section: Introductionmentioning

confidence: 99%

A Comparison of Abdominal Muscle Thicknesses Measured by Ultrasonography between the Abdominal Drawing-in and Straight Leg Raise Maneuvers

Lee

Seo

2012

J Phys Ther Sci

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Abstract. [Purpose] This study compared and analyzed the ultrasonograms of deep abdominal muscles (transverse abdominis muscle, internus oblique abdominal muscle, external oblique abdominal muscle) in the Active Straight Leg Raise (ASLR) and Abdominal Drawing-In Maneuver (ADIM) to identify more effective clinical diagnosis methods. [Subjects and Methods] The study was conducted by performing ASLR and ADIM movement in sequence. The subjects were 37 healthy subjects and we measured the thicknesses of deep abdominal muscles (transverse abdominis muscle, internus oblique abdominal muscle, external oblique abdominal muscle) on ultrasonograms taken during ASLR and ADIM for comparison and analysis. In order to assess the relations among the deep abdominal muscles on the same side as measured during ASLR and ADIM, a correlation analysis was carried out. The independent t-test was conducted to identify the differences in thicknesses of same side muscles as measured during ASLR and ADIM.[Results] The results show that each muscle on the same side during ASLR and ADIM had high level of correlations except during ASLR and ADIM the right EO. Also, for the muscle thickness of the same side muscles, only the right EO showed a significant differences.[Conclusion] ADIM is a complicated and difficult movement to measure. ASLR also enables the measurement of deep abdominal muscles; therefore, it could be used to elevate the efficiency of clinical diagnosis. We anticipate that ASLR will be used more for the measurement of deep abdominal muscles.

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Abdominal muscle contraction thickness and function after specific and general exercises: A randomized controlled trial in chronic low back pain patients

Cited by 97 publications

References 45 publications

Association Between Changes in Electromyographic Signal Amplitude and Abdominal Muscle Thickness in Individuals With and Without Lumbopelvic Pain

Association Between Changes in Electromyographic Signal Amplitude and Abdominal Muscle Thickness in Individuals With and Without Lumbopelvic Pain

Changes in muscle activity of the abdominal muscles according to exercise method and speed during dead bug exercise

A Comparison of Abdominal Muscle Thicknesses Measured by Ultrasonography between the Abdominal Drawing-in and Straight Leg Raise Maneuvers

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