scholarly journals The Use of Real-Time Ultrasound Imaging for Biofeedback of Lumbar Multifidus Muscle Contraction in Healthy Subjects

2006 ◽  
Vol 36 (12) ◽  
pp. 920-925 ◽  
Author(s):  
Khai Van ◽  
Julie A. Hides ◽  
Carolyn A. Richardson
Keyword(s):  
Muscle Contraction ◽  
Real Time ◽  
Ultrasound Imaging ◽  
Healthy Subjects ◽  
Multifidus Muscle ◽  
Lumbar Multifidus ◽  
Lumbar Multifidus Muscle

Measurement of lumbar multifidus muscle contraction with rehabilitative ultrasound imaging

2007 ◽  
Vol 12 (2) ◽  
pp. 161-166 ◽  
Author(s):  
Kyle B. Kiesel ◽  
Tim L. Uhl ◽  
Frank B. Underwood ◽  
Donald W. Rodd ◽  
Arthur J. Nitz
Keyword(s):  
Muscle Contraction ◽  
Ultrasound Imaging ◽  
Multifidus Muscle ◽  
Lumbar Multifidus ◽  
Lumbar Multifidus Muscle

scholarly journals Effect of real-time ultrasound imaging for biofeedback on trunk muscle contraction in healthy subjects: a preliminary study

2020 ◽  
Author(s):  
Shanshan Lin ◽  
Bo Zhu ◽  
Yiyi Zheng ◽  
Guozhi Huang ◽  
Qing Zeng ◽  
...  
Keyword(s):  
Muscle Contraction ◽  
Real Time ◽  
Ultrasound Imaging ◽  
Healthy Subjects ◽  
Transversus Abdominis ◽  
Trunk Muscles ◽  
Control Group ◽  
Visual Biofeedback ◽  
Preliminary Study ◽  
Experimental Group

Abstract Background: Real-time ultrasound imaging (RUSI) has been increasingly used as a form of biofeedback when instructing and re-training muscle contraction. However, the effectiveness of the RUSI on a single sustained contraction of the lumbar multifidus (LM) and transversus abdominis (TrA) has rarely been reported. This preliminary study aimed to determine if the use of RUSI, as visual biofeedback, could enhance the ability of activation and continuous contraction of the trunk muscles including LM and TrA.Methods: Forty healthy individuals were included and randomly assigned into the experimental group and control group. All subjects performed a preferential activation of the LM and/or TrA (maintained the constraction of LM and/or TrA for 30 seconds and then relaxed for two minutes), while those in the experimental group also received visual feedback provided by RUSI. The thickness of LM and/or TrA at rest and during contraction (Tc-max, T15s, and T30s) were extracted and recorded. The experiment was repeated three times.Results: No significant differences were found in the thickness of LM at rest (P > 0.999), Tc-max (P > 0.999), and T15s (P = 0.414) between the two groups. However, the ability to recruit LM muscle contraction differed between groups at T30s (P = 0.006), with subjects in the experimental group that received visual ultrasound biofeedback maintaining a relative maximum contraction. Besides, no significant differences were found in the TrA muscle thickness at rest (P > 0.999) and Tc-max (P > 0.999) between the two groups. However, significant differences of contraction thickness were found at T15s (P = 0.031) and T30s (P = 0.010) between the two groups during the Abdominal Drawing-in Maneuver (ADIM), with greater TrA muscle contraction thickness in the experimental group.Conclusions: RUSI can be used to provide visual biofeedback, which can promote continuous contraction, and improve the ability to activate the LM and TrA muscles in healthy subjects.

scholarly journals Effect of real-time ultrasound imaging for biofeedback on trunk muscle contraction in healthy subjects: a preliminary study

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Shanshan Lin ◽  
Bo Zhu ◽  
Yiyi Zheng ◽  
Guozhi Huang ◽  
Qi Zeng ◽  
...  
Keyword(s):  
Muscle Contraction ◽  
Real Time ◽  
Ultrasound Imaging ◽  
Healthy Subjects ◽  
Transversus Abdominis ◽  
Trunk Muscles ◽  
Control Group ◽  
Visual Biofeedback ◽  
Preliminary Study ◽  
Experimental Group

Abstract Background Real-time ultrasound imaging (RUSI) has been increasingly used as a form of biofeedback when instructing and re-training muscle contraction. However, the effectiveness of the RUSI on a single sustained contraction of the lumbar multifidus (LM) and transversus abdominis (TrA) has rarely been reported. This preliminary study aimed to determine if the use of RUSI, as visual biofeedback, could enhance the ability of activation and continuous contraction of the trunk muscles including LM and TrA. Methods Forty healthy individuals were included and randomly assigned into the experimental group and control group. All subjects performed a preferential activation of the LM and/or TrA (maintained the constraction of LM and/or TrA for 30 s and then relaxed for 2 min), while those in the experimental group also received visual feedback provided by RUSI. The thickness of LM and/or TrA at rest and during contraction (Tc-max, T15s, and T30s) were extracted and recorded. The experiment was repeated three times. Results No significant differences were found in the thickness of LM at rest (P > 0.999), Tc-max (P > 0.999), and T15s (P = 0.414) between the two groups. However, the ability to recruit LM muscle contraction differed between groups at T30s (P = 0.006), with subjects in the experimental group that received visual ultrasound biofeedback maintaining a relative maximum contraction. Besides, no significant differences were found in the TrA muscle thickness at rest (P > 0.999) and Tc-max (P > 0.999) between the two groups. However, significant differences of contraction thickness were found at T15s (P = 0.031) and T30s (P = 0.010) between the two groups during the Abdominal Drawing-in Maneuver (ADIM), with greater TrA muscle contraction thickness in the experimental group. Conclusions RUSI can be used to provide visual biofeedback, which can promote continuous contraction, and improve the ability to activate the LM and TrA muscles in healthy subjects.

scholarly journals Effect of Real-Time Ultrasound Imaging for Biofeedback on Trunk Muscle Contraction in Healthy Subjects: A Preliminary Study

2020 ◽  
Author(s):  
Shanshan Lin ◽  
Bo Zhu ◽  
Yiyi Zheng ◽  
Guozhi Huang ◽  
Qing Zeng ◽  
...  
Keyword(s):  
Muscle Contraction ◽  
Real Time ◽  
Ultrasound Imaging ◽  
Healthy Subjects ◽  
Clinical Medicine ◽  
Transversus Abdominis ◽  
Trunk Muscles ◽  
Visual Biofeedback ◽  
Preliminary Study ◽  
Experimental Group

Abstract Background: Real-time ultrasound imaging (RUSI) has been increasingly used in clinical medicine as a form of biofeedback when instructing and re-training muscle contraction. However, the effectiveness of the RUSI on a single sustained contraction of the lumbar multifidus (LM) and transversus abdominis (TrA) has rarely been reported. This preliminary study aimed to determine if the use of RUSI as visual biofeedback enhances the ability of activation and continuous contraction of the trunk muscles including LM and TrA.Methods: Forty healthy individuals were included and assigned to 2 groups. All subjects received clinical instruction in how to perform a preferential activation of the LM and TrA, while subjects in the experimental group also received visual feedback (watched the LM and TrA contraction) provided by RUSI. All subjects maintained the LM and TrA contraction for 30 seconds, and the thickness of LM and TrA at rest and during contraction (Tc-max, T15s, and T30s) were extracted and recorded.Results: Non-significant differences were found in the thickness of LM at rest (P > 0.999), Tc-max (P > 0.999), and T15s (P = 0.414) between groups. However, the ability to recruit LM muscle contraction differed between groups at T30s (P = 0.006), with subjects in the experimental group that received visual ultrasound biofeedback maintaining a relative maximum contraction. Besides, there were also no significant differences in the TrA muscle thickness at rest (P > 0.999) and Tc-max (P > 0.999) between groups. While, significant differences of contraction thickness were found at T15s (P = 0.031) and T30s (P = 0.010) between groups during the ADIM, with greater TrA muscle contraction thickness in the experimental group.Conclusions: RUSI can be used to provide visual biofeedback, which can promote continuous contraction efficiency, improve performance, and retention in the ability to activate the LM and TrA muscles in healthy subjects.

scholarly journals Ultrasound Imaging Analysis of the Lumbar Multifidus Muscle Echo Intensity: Intra-Rater and Inter-Rater Reliability of a Novice and an Experienced Rater

Medicina ◽  
2021 ◽  
Vol 57 (5) ◽  
pp. 512
Author(s):  
Maryse Fortin ◽  
Brent Rosenstein ◽  
Jerome Levesque ◽  
Neil Nandlall
Keyword(s):  
Ultrasound Imaging ◽  
Muscle Quality ◽  
Ultrasound Images ◽  
Echo Intensity ◽  
Multifidus Muscle ◽  
Cross Sectional ◽  
Rater Reliability ◽  
Lumbar Multifidus ◽  
The Right ◽  
Lumbar Multifidus Muscle

Background and Objectives: Ultrasound echo intensity (EI) of the lumbar multifidus muscle (LMM) could offer valuable insights regarding muscle quality in people with low back pain (LBP). However, whether the rater’s experience noticeably influences the reliability and precision of LMM EI measurements has not been established. The aims of this study were to investigate the intra-rater and inter-rater reliability of LMM EI measurements, and to compare the reliability and SEM between a novice and an experienced rater. Materials and Methods: Twenty athletes (10 females, 10 males) with a history of LBP were included in this study. Transverse ultrasound images of LMM were taken at L5 in prone. LMM EI measurements were obtained bilaterally by tracing the maximum ROI representing the LMM cross-sectional area (CSA), avoiding the inclusion of bone or surrounding fascia. All measurements were performed by two novice raters and an experienced researcher. Each measurement was acquired by each rater three times for each side on three different images, and the average was used in the analyses. Raters were blinded to each other’s measurements and the participant’s clinical information. Intra-class correlation coefficients (ICCs) were obtained to assess the intra-rater and inter-rater reliability. Results: The intra-rater ICC values for the LMM measurements for the experienced rater were excellent (ICC all > 0.997). The inter-rater reliability ICC values showed moderate to excellent reliability (0.614 to 0.994) and agreement between the novice raters and the experienced rater, except for Novice 1 for the right LMM, which revealed lower ICCs and a wider 95% CI. Intra-rater and inter-rater reliability results were similar when separately looking at the right and left side of the muscle and participant gender. Conclusions: Our findings support the clinical use of ultrasound imaging for the assessment of LMM EI in individuals with LBP.

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