Reliability of the rectus femoris muscle cross-sectional area measurements by ultrasonography

2012 ◽  
Vol 32 (3) ◽  
pp. 221-226 ◽  
Author(s):  
Kelly M. M. e Lima ◽  
Thiago T. da Matta ◽  
Liliam F. de Oliveira
Keyword(s):  
Rectus Femoris ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Muscle Cross Sectional Area ◽  
Rectus Femoris Muscle ◽  
Femoris Muscle

scholarly journals Reliability and differences in quadriceps femoris muscle morphology using ultrasonography: The effects of body position and rest time

Ultrasound ◽  
2018 ◽  
Vol 26 (4) ◽  
pp. 214-221 ◽  
Author(s):  
Patrick M Tomko ◽  
Tyler WD Muddle ◽  
Mitchel A Magrini ◽  
Ryan J Colquhoun ◽  
Micheal J Luera ◽  
...  
Keyword(s):  
Supine Position ◽  
Rest Period ◽  
Rectus Femoris ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Echo Intensity ◽  
Cross Sectional ◽  
Muscle Cross Sectional Area ◽  
Rectus Femoris Muscle ◽  
Femoris Muscle

Introduction The purpose of this investigation was to: (1) to determine the reliability of rectus femoris muscle cross-sectional area and echo intensity obtained using panoramic ultrasound imaging during seated and supine lying positions before and after a 5-minute rest period and (2) to determine the influence of body position and rest period on the magnitude of rectus femoris muscle cross-sectional area and echo intensity measurements. Methods A total of 23 males and females (age = 21.5 ± 1.9 years) visited the laboratory on two separate occasions. During each visit, panoramic ultrasound images of the rectus femoris were obtained in both a seated and a supine position before (T1) and after a 5-minute (T2) rest period to quantify any potential changes in either muscle cross-sectional area and/or echo intensity. Results None of the muscle cross-sectional area or echo intensity measurements exhibited systematic variability, and the ICCs were 0.98–0.99 and 0.88–0.91, and the coefficients of variation were ≤ 3.9% and ≤ 8.2% for muscle cross-sectional area and echo intensity, respectively. Our results indicated that muscle cross-sectional area was greater in the seated than supine position, whereas echo intensity was greater in the supine position. Further, echo intensity increased in the seated position from T1 to T2. Conclusion Both rectus femoris muscle cross-sectional area and echo intensity may be reliably measured in either a seated or supine lying position before or after a 5-minute rest period. Aside from echo intensity in the seated position, rest period had no influence on the magnitude of muscle cross-sectional area or echo intensity. Comparison of muscle cross-sectional area values that are obtained in different body positions is ill-advised.

scholarly journals Evaluation of Sarcopenia by Ultrasound of the Rectus Femoris Muscle as a Predictor of Outcomes of Surgical Intensive Care Unit Patients, A Prospective, Observational Study

2021 ◽  
pp. 43-52
Author(s):  
Aya Hassan Hegazy ◽  
Mohammad Samir Abd El-Ghafar ◽  
Nagat Sayed El-shmaa ◽  
Sohair Moustafa Soliman
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Rectus Femoris ◽  
Cross Sectional Area ◽  
Surgical Intensive Care Unit ◽  
Sectional Area ◽  
Surgical Intensive Care ◽  
Cross Sectional ◽  
Rectus Femoris Muscle ◽  
Femoris Muscle

Background: Muscle wasting is a frequent finding in critically ill patients and is associated with worse short- and long term outcomes. Loss of mass and function of skeletal muscles starts early - in the first 24 hours after admission to Intensive Care Unit (ICU) - and may persist for years ‘Post-ICU syndrome’. Ultrasound of rectus femoris muscle is a valid and simple technique that could be used for longitudinal assessment of treatment success and facilitates the use of postoperative interventions that help in problems related to critical illness. The aim of this study is to evaluate sarcopenia by ultrasound of rectus femoris muscle as a predictor of outcomes of surgical intensive care unit. Materials and Methods: This prospective observational study was performed on 40 patients admitted to the surgical ICU, Tanta University Hospitals, Egypt, after approval of the Institutional Ethical Committee, Tanta University. The study started from April 2019 till January 2020. An informed consent was taken from the nearest relatives of the patients. All data of the patients was confidential with secret codes and private files for each patient. All given data was used for the current medical research only. Any unexpected risks appeared during the course of the research were cleared to the participants and ethical committee at time. Results: Cross-sectional area of rectus femoris muscle decreased significantly at all-time measurements as compared to the baseline at day 0 (within 24 hours from SICU admission), 5, 10, 15, 20, 25 and 30. There were negative correlations between delta cross-sectional area of rectus femoris muscle and age, height, weight, Body Mass Index and baseline cross-sectional area of rectus femoris muscle. There was a positive correlation between delta cross-sectional area of rectus femoris muscle and duration of mechanical ventilation, ICU length of stay and mortality. Conclusion: Rectus femoris cross-sectional area measured by B-mode ultrasonography showed significant role in nutritional assessment as it decreases in critically ill patients with positive correlation with duration of mechanical ventilation and ICU stay.

scholarly journals Rectus femoris muscle thickness and cross-sectional area on ultrasonography may predict isometric and isokinetic knee extension strength: A cross-sectional study

2021 ◽  
Author(s):  
Ufuk Şekir 9) ◽  
Uğur Can Yalaki ◽  
Bedrettin Akova
Keyword(s):  
Vastus Lateralis ◽  
Muscle Thickness ◽  
Rectus Femoris ◽  
Pennation Angle ◽  
Cross Sectional Area ◽  
Isokinetic Strength ◽  
Sectional Area ◽  
Cross Sectional ◽  
Rectus Femoris Muscle ◽  
Femoris Muscle

Objective: To examine the relationship between knee extensor strength and quadriceps muscle architecture evaluated with ultrasonography during relaxed and contracted situations. Materials and Methods: A total of 40 healthy participants (age range 18-40), doing sports at a recreational level were included. Pennation angle, muscle thickness, and cross-sectional area of the vastus medialis, vastus lateralis, and rectus femoris muscles were measured firstly during rest while participants are sitting on an isokinetic dynamometer with their knees at 0° and 60° of flexion. Thereafter, ultrasound evaluations were performed during maximal isometric contraction at 60° knee flexion and maximal isokinetic contraction at 30°/sec and 60°/sec speeds. The architectural parameters were correlated with peak isometric (measured at 60° knee flexion) and isokinetic (measured at 30°/sec and 60°/sec angular velocities) torque values. Results: Pennation angle (p<0.001), muscle thickness (p<0.001) and muscle cross-sectional area (p<0.001) of the vastus medialis muscle during rest, and isometric and isokinetic maximal contractions were higher than the vastus lateralis and rectus femoris muscles. Pennation angle, muscle thickness and muscle cross-sectional area parameters measured during rest, and isometric and isokinetic maximal contractions in the vastus medialis (r=0.39-0.64, p<0.05-0.01) and vastus lateralis (r=0.36-0.68, p<0.05-0.01) showed weak to moderate correlations with isometric and isokinetic peak torque. In rectus femoris muscle, on the other hand, except the weak correlation in pennation angle (r=0.35-0.49, p<0.05-0.01), muscle thickness (r=0.74-0.80, p<0.001) and cross-sectional area (r=0.71-0.80, p<0.001) had a moderate to strong correlation with isometric and isokinetic strength. Stepwise regression analysis indicated that rectus femoris cross-sectional area measured during knee relaxed at 60° flexion (R2=0.532-0.610) and rectus femoris muscle thickness measured during isometric and isokinetic contraction modes (R2=0.538-0.600) were decisive to predict the isometric and isokinetic strength of the quadriceps muscle. Conclusion: Contrary to pennation angle, muscle thickness and cross-sectional area of the rectus femoris measured during relaxed and contracted conditions may be determinative in predicting isometric and isokinetic strength.

scholarly journals Is there a correlation between upper lumbar disc herniation and multifidus muscle degeneration? A retrospective study of MRI morphology

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Chong Liu ◽  
Jiang Xue ◽  
Jingjing Liu ◽  
Gang Ma ◽  
Abu Moro ◽  
...  
Keyword(s):  
Lumbar Disc Herniation ◽  
Lumbar Disc ◽  
Fatty Infiltration ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Muscle Degeneration ◽  
Multifidus Muscle ◽  
Cross Sectional ◽  
Upper Lumbar Disc Herniation ◽  
Muscle Cross Sectional Area

Abstract Background The purpose of the study is to investigate the correlation between upper lumbar disc herniation (ULDH) and multifidus muscle degeneration via the comparison of width, the cross-sectional area and degree of fatty infiltration of the lumbar multifidus muscle. Methods Using the axial T2-weighted images of magnetic resonance imaging as an assessment tool, we retrospectively investigated 132 patients with ULDH and 132 healthy individuals. The total muscle cross-sectional area (TMCSA) and the pure muscle cross-sectional area (PMCSA) of the multifidus muscle at the L1/2, L2/3, and L3/4 intervertebral disc levels were measured respectively, and in the meantime, the average multifidus muscle width (AMMW) and degree of fatty infiltration of bilateral multifidus muscle were evaluated. The resulting data were analyzed to determine the presence/absence of statistical significance between the study and control groups. Multivariate logistical regression analyses were used to evaluate the correlation between ULDH and multifidus degeneration. Results The results of the analysis of the two groups showed that there were statistically significant differences (p < 0.05) between TMCSA, PMCSA, AMMW and degree of fatty infiltration. The multivariate logistic regression analysis indicated that the TMCSA, PMCSA, AMMW and the degree of fatty infiltration of multifidus muscle were correlated with ULDH, and the differences were statistically significant (P < 0.05). Conclusions A correlation could exist between multifidus muscles degeneration and ULDH, that may be a process of mutual influence and interaction. Lumbar muscle strengthening training could prevent and improve muscle atrophy and degeneration.

scholarly journals Rectus Femoris Mimicking Ultrasound Phantom for Muscle Mass Assessment: Design, Research, and Training Application

2021 ◽  
Vol 10 (12) ◽  
pp. 2721
Author(s):  
Nobuto Nakanishi ◽  
Shigeaki Inoue ◽  
Rie Tsutsumi ◽  
Yusuke Akimoto ◽  
Yuko Ono ◽  
...  
Keyword(s):  
Measurement Accuracy ◽  
Rectus Femoris ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Phantom Model ◽  
Ultrasound Measurements ◽  
Ultrasound Phantom

Ultrasound has become widely used as a means to measure the rectus femoris muscle in the acute and chronic phases of critical illness. Despite its noninvasiveness and accessibility, its accuracy highly depends on the skills of the technician. However, few ultrasound phantoms for the confirmation of its accuracy or to improve technical skills exist. In this study, the authors created a novel phantom model and used it for investigating the accuracy of measurements and for training. Study 1 investigated how various conditions affect ultrasound measurements such as thickness, cross-sectional area, and echogenicity. Study 2 investigated if the phantom can be used for the training of various health care providers in vitro and in vivo. Study 1 showed that thickness, cross-sectional area, and echogenicity were affected by probe compression strength, probe angle, phantom compression, and varying equipment. Study 2 in vitro showed that using the phantom for training improved the accuracy of the measurements taken within the phantom, and Study 2 in vivo showed the phantom training had a short-term effect on improving the measurement accuracy in a human volunteer. The new ultrasound phantom model revealed that various conditions affected ultrasound measurements, and phantom training improved the measurement accuracy.

Early resistance training-induced increases in muscle cross-sectional area are concomitant with edema-induced muscle swelling

2015 ◽  
Vol 116 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Felipe Damas ◽  
Stuart M. Phillips ◽  
Manoel E. Lixandrão ◽  
Felipe C. Vechin ◽  
Cleiton A. Libardi ◽  
...  
Keyword(s):  
Resistance Training ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Muscle Cross Sectional Area
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