ArticleUltrasound (Leeds, England)2018
Reliability and differences in quadriceps femoris muscle morphology using ultrasonography: The effects of body position and rest time.
Article in Ultrasound (Leeds, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
15 citing papers in PubMed, 37 citations in OpenAlex.
- Ultrasound assessment of muscle mass in response to exercise training in chronic kidney disease: a comparison with MRI.Journal of cachexia, sarcopenia and muscle · 2019Trial
- Comparison of Lower Extremity Muscle Deterioration in Women with Rheumatoid Arthritis and Healthy Controls: Relationship with Disease Activity, Muscle Strength, and Walking Speed.The Eurasian journal of medicine · 2026Article
- Ultrasound and MRI Are Not Interchangeable for Measuring Muscle Cross-Sectional Area: Analysis of Reliability and Validity in 10 Lower Limb Muscles Considering Sex Differences.European journal of sport science · 2026Article
- Article
- Usefulness of Muscle Stiffness Evaluated by Ultrasonography for Detecting Muscle Change Related to Contracture in Frail Older Adults.Canadian geriatrics journal : CGJ · 2025Article
- Is there a critical rate of torque development?European journal of applied physiology · 2025Article
- Effect of Small and Large Energy Surpluses on Strength, Muscle, and Skinfold Thickness in Resistance-Trained Individuals: A Parallel Groups Design.Sports medicine - open · 2023Article
- Sitting vs. supine ultrasound measurements of the vastus medialis: correlations with MRI measurements and age considerations.Journal of physiological anthropology · 2023Article
- Human skeletal muscle size with ultrasound imaging: a comprehensive review.Journal of applied physiology (Bethesda, Md. : 1985) · 2022Review
- The Influence of Sonographer Experience on Skeletal Muscle Image Acquisition and Analysis.Journal of functional morphology and kinesiology · 2021Article
- Reliability of lumbar multifidus and iliocostalis lumborum thickness and echogenicity measurements using ultrasound imaging.Australasian journal of ultrasound in medicine · 2021Article
- Echo intensity as an indicator of skeletal muscle quality: applications, methodology, and future directions.European journal of applied physiology · 2021Review
- Effect of position and exercise on measurement of muscle quantity and quality: towards a standardised pragmatic protocol for clinical practice.BMC sports science, medicine & rehabilitation · 2021Article
- Echo intensity reliability between two rectus femoris probe sites.Ultrasound (Leeds, England) · 2019Article
- Effects of Rest Position on Morphology of the Vastus Lateralis and Its Relationship with Lower-Body Strength and Power.Journal of functional morphology and kinesiology · 2019Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThe 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.
methodsA 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.
resultsNone 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.
conclusionBoth 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.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.