Concurrent validity of the pressure biofeedback unit and surface electromyography in measuring transversus abdominis muscle activity in patients with chronic nonspecific low back pain

Lima, Pedro Olavo de Paula; Oliveira, Rodrigo Ribeiro de; Filho, Alberto G. Moura; Raposo, Maria Cristina Falcão; Costa, Leonardo Oliveira Pena; Laurentino, Glória Elizabeth Carneiro

doi:10.1590/s1413-35552012005000038

Cited by 40 publications

(33 citation statements)

References 54 publications

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“…Meanwhile, no significant difference in the thickness of the musculus transversus abdominis muscle was observed between the BTG and the PBUG. Regarding this, von Garnier et al reported that the interobserver reliability of the PBU was low12 ) , and Lima et al observed that the preciseness of diagnoses made by using a PBU was doubtful13 ) .…”

Section: Discussionmentioning

confidence: 99%

Comparison of abdominal muscle thickness according to feedback method used during abdominal hollowing exercise

2016

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[Purpose] This study was intended to examine the most effective feedback method for contracting the musculus transversus abdominis muscle by using basic training, a pressure biofeedback unit, and real-time ultrasonographic imaging during abdominal hollowing exercise training. [Subjects and Methods] The subjects in this study were 30 healthy young students in their twenties. Thirty subjects were divided randomly and equally into the basic training, the pressure biofeedback unit, and real-time ultrasonographic imaging groups. All of the subjects received abdominal hollowing exercise training for 15 minutes. The subjects in the pressure biofeedback unit group were trained by using a pressure biofeedback unit. Those in the real-time ultrasonographic imaging group received training with monitoring of possible contraction of their musculus transversus abdominis muscles on ultrasonography. [Results] In all the three groups, the musculus transversus abdominis became significantly thicker, but more significantly in the real-time ultrasonographic imaging group than in the basic training group. [Conclusion] The feedback method using real-time ultrasonographic imaging may be more effective in thickening the musculus transversus abdominis muscle during exercise than the traditional feedback method with manual contact only. However, it is insufficient in terms of overall qualitative improvement of exercise outcome.

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Section: Discussionmentioning

confidence: 99%

Comparison of abdominal muscle thickness according to feedback method used during abdominal hollowing exercise

2016

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“…This could be due to the testing positions used: supine and prone lying positions were implemented for the test, which were easy to perform, because the muscles were in a relaxed state. Even though the PBU test in supine position is commonly used and well established [44], tests in other positions, such as standing, are more challenging, because the muscles contract against gravity and might be less suitable and less stable for older persons. Therefore, if the test was conducted in a different position, the results might differ.…”

Section: Discussionmentioning

confidence: 99%

“…The TrA and multifidus increase intra-abdominal pressure that provides stability to the spine [28]. To assess TrA muscle control, subjects were instructed to draw in their abdomen and hold for a 10-second period [29]. The pressure for PBU was set at 70 mmHg, and the pressure reduction readings were recorded.…”

Section: Methodsmentioning

confidence: 99%

Muscle Functions and Functional Performance among Older Persons with and without Low Back Pain

Ishak

Zahari

Justine

2016

Current Gerontology and Geriatrics Research

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This study aims to compare muscle functions and functional performances between older persons with and without low back pain (LBP) and to determine the association between muscle functions and functional performances. This is a cross-sectional study, involving 95 older persons (age = 70.27 ± 7.26 years). Anthropometric characteristics, muscle functions, and functional performances were measured. Data were analyzed using ANOVA, Pearson's correlation, and multiple linear regression. The functional performances showed no significant differences (females LBP versus non-LBP, males LBP versus non-LBP) (p < 0.05). For muscle functions, significant differences were found (females LBP versus non-LBP) for abdominal muscle strength (p = 0.006) and back muscle strength (p = 0.07). In the LBP group, significant correlations were found between back and abdominal muscle strength and hand grip strength (r = 0.377 and r = 0.396, resp.), multifidus control and lower limb function (r = 0.363) in females, and back muscle strength and lower limb function (r = 0.393) in males (all p < 0.05). Regression analysis showed that abdominal and back muscle strengths were significant predictors of hand grip strength (p = 0.041 and p = 0.049, resp.), and multifidus control was a significant predictor of lower limb function in females (p = 0.047). This study demonstrates that older women with LBP exhibit poorer muscle functions compared to older women without LBP.

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“…The clinimetric analysis of PBU test showed that this test had low sensitivity of 0.22, moderate specificity of 0.77, a positive likelihood ratio of 0.94, and a negative likelihood ratio of 1.02 [38]. The testing procedures were as follows: participants were asked to draw in their abdomen without moving the spine or pelvis and hold for 10 seconds in a prone lying position [39]. In the prone lying position, the inflatable bag of the PBU was placed between the anterior superior iliac spine and navel.…”

Section: Methodsmentioning

confidence: 99%

Kinesiophobia, Pain, Muscle Functions, and Functional Performances among Older Persons with Low Back Pain

Ishak

Zahari

Justine

2017

Pain Research and Treatment

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Objectives This study aims (1) to determine the association between kinesiophobia and pain, muscle functions, and functional performances and (2) to determine whether kinesiophobia predicts pain, muscle functions, and functional performance among older persons with low back pain (LBP). Methods This is a correlational study, involving 63 institutionalized older persons (age = 70.98 ± 7.90 years) diagnosed with LBP. Anthropometric characteristics (BMI) and functional performances (lower limb function, balance and mobility, and hand grip strength) were measured. Muscle strength (abdominal and back muscle strength) was assessed using the Baseline® Mechanical Push/Pull Dynamometer, while muscle control (transverse abdominus and multifidus) was measured by using the Pressure Biofeedback Unit. The pain intensity and the level of kinesiophobia were measured using Numerical Rating Scale and Tampa Scale of Kinesiophobia, respectively. Data were analyzed using Pearson's correlation coefficients and multivariate linear regressions. Results No significant correlations were found between kinesiophobia and pain and muscle functions (all p > 0.05). Kinesiophobia was significantly correlated with mobility and balance (p = 0.038, r = 0.263). Regressions analysis showed that kinesiophobia was a significant predictor of mobility and balance (p = 0.038). Conclusion We can conclude that kinesiophobia predicted mobility and balance in older persons with LBP. Kinesiophobia should be continuously assessed in clinical settings to recognize the obstacles that may affect patient's compliance towards a rehabilitation program in older persons with LBP.

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Concurrent validity of the pressure biofeedback unit and surface electromyography in measuring transversus abdominis muscle activity in patients with chronic nonspecific low back pain

Cited by 40 publications

References 54 publications

Comparison of abdominal muscle thickness according to feedback method used during abdominal hollowing exercise

Comparison of abdominal muscle thickness according to feedback method used during abdominal hollowing exercise

Muscle Functions and Functional Performance among Older Persons with and without Low Back Pain

Kinesiophobia, Pain, Muscle Functions, and Functional Performances among Older Persons with Low Back Pain

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